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First Name :    David
Location :   Johannesburg South Africa
Your URL :   
Date :    20 October 2009
Comments and Suggestions :   A well presented site that is useful for people like myself who cannot design but can assemble and use.
First Name :    pk
Location :   calcutta india
Your URL :   
Date :    19.10.09
Comments and Suggestions :  excellant projects.
First Name :    Larry
Location :   Texas USA
Your URL :    laau@earthlkink.net
Date :    10/18/2009
Comments and Suggestions :  Your site is absolutely awesome. I cant get enough of it. Thanks for being so generous with your knowledge!!
First Name :    Bernard
Location :   Philadelphia, PA , USA
Your URL :    www.bernardkatzglass.com
Date :    10/18/09
Comments and Suggestions :  Very clear information! Detail instruction of the physical layout of the circuits is very helpful for clean logical placement of the components.
First Name :    Adrian H.
Location :   Brunei Darussalam
Your URL :   
Date :    10.17.2009
Comments and Suggestions :  Its really interesting site youve got and the info provided is very useful. Thanks for your unselfishness.
First Name :    Chris
Location :   Albany, NY
Your URL :   
Date :    09/23/2009
Comments and Suggestions :  Very nice tutorial on the complementary latch.
First Name :    Nicolas Gonzalez
Location :   Mendoza Argentina
Your URL :    pata_gonia@live.com.ar
Date :    06 set 2009
Comments and Suggestions :  Muy bueno su sitio , es muy útil ; estoy agradecido por los datos obtenidos. Mis buenos deseos para Ud. Cordiales saludos Nicolas
First Name :    khamz
Location :   Davao
Your URL :    khamz-cute.blogspot.com
Date :    8/31/2009
Comments and Suggestions :  very nice!
First Name :    Jacques
Location :   South Africa
Your URL :    http://www.8g.co.za
Date :    23/08/2009
Comments and Suggestions :   Keep up the good work. Im using and playing with a few of your circuits.
First Name :    David
Location :   Qld, Australia
Your URL :   
Date :    Aug 9, 2009
Comments and Suggestions :   Marvellous
First Name :    Gavin
Location :    South Africa
Your URL :   
Date :    28/07/2009
Comments and Suggestions :  This is a great site for the beginner to the intermeadate learner in electronics, keep up the great work. Regards
First Name :    justin
Location :    oregon, U.S.
Your URL :    unbfinished but: justinc.vndv.com
Date :    7/24/2009
Comments and Suggestions :  
First Name :    hmoud
Location :   Jordan
Your URL :   
Date :    24/07/09
Comments and Suggestions :  Dear Ron hi Just i would like to thank you for your evort and grate circuits
First Name :    Howard
Location :   Perth, Australia
Your URL :   
Date :    1-Jul-2009
Comments and Suggestions :  Excellent work and website. Keep it up. And thank you.
First Name :    Michael
Location :    Essex
Your URL :    www.chiari-info.co.uk
Date :    28-06-2009
Comments and Suggestions :   I am glad I found your website, Iwas going to spend about £300 on a alarm. Your website is very informative and your instructions clear and precise. Many thanks for a very helpful and good website. Thanks again, Michael
First Name :    mich
Location :   
Your URL :   
Date :   
Comments and Suggestions :  thanks for the designs... this site is really great!!!! VERY VERY VERY HELPFUL!!! thanks a lot and keep posting those designs :)
First Name :    Rangie
Location :   Sri-Lanka
Your URL :   
Date :    01-06-09
Comments and Suggestions :  Great Stuff
First Name :    Shankar
Location :   Sri Lanka
Your URL :   
Date :    30-05-2009
Comments and Suggestions :  Its very interesting and very useful and I learned a lot from the circuit detail. Thankas and keep it up your good work.
First Name :    NISHITH
Location :    India
Your URL :   www.nt99671@gmail.com
Date :    27-05-2009
Comments and Suggestions :   hey ron u r a the most intelligent ive seen your interest in circuits is well observed thanks
First Name :    Jawahar
Location :    India
Your URL :   
Date :    20May09
Comments and Suggestions :  Wonderful site
First Name :    Agnelo
Location :   Kuwait
Your URL :   
Date :    12/05/09
Comments and Suggestions :  good circuits
First Name :    Rick
Location :   Illinois USA
Your URL :   
Date :    10 may 09
Comments and Suggestions :   thanks for the great schematics, we just purchased a new home and are automating it. The alarm related stuff will save me, so the money can be used elsewhere. Thanks for the quick response back too, but looks like Ill have to do most of my ordering from U
First Name :    Chuck
Location :   Minnesota
Your URL :   
Date :    May 9, 2009
Comments and Suggestions :  Its sites like your that arouse the curiosity in future electronic experts young and old. Your site is a real benefit to the Internet community, Thanks for all
First Name :    darren
Location :   cornwall , UK
Your URL :    www.budeweather.axspace.com/budeweather.htm
Date :    080509
Comments and Suggestions :  just built your transistor alarm, works first time lol. thanks
First Name :   james
Location :   
Your URL :   
Date :   
Comments and Suggestions :  nice site
First Name :    Mujahid
Location :   Karachi/Pakistan
Your URL :   
Date :   25/4/2009
Comments and Suggestions :  Excellent guide which helps a lot.
First Name :    Jakoeb Abrahams
Location :   South Africa
Your URL :    abrahaj@telkomsa.net
Date :    2009/04/21
Comments and Suggestions :  Hi, I am just starting to play around with electronics/circuits and found your site very rewarding. I would like to thank you for a well orginised and informative site. I hope to call on you some time as my experience grow. Thank you Jakoeb
First Name :    teta
Location :    indonesia
Your URL :   
Date :   
Comments and Suggestions :  good circuits
First Name :    Archie
Location :   Vereeniging, South Africa
Your URL :   
Date :    2009-04-17
Comments and Suggestions :  Very instructive site especially for someone like me who is getting interested in electronic stuff.
First Name :    Manoj M.M.
Location :   India, Kerala, Moolamattom
Your URL :    manoj2madhav@gmail.com
Date :    17.04.2009
Comments and Suggestions :  Good site!!!!
First Name :    Peter Szolkowski
Location :   United Kingdom
Your URL :   
Date :    16 April 20089
Comments and Suggestions :  Brilliant website!
First Name :    Graham
Location :   North east
Your URL :   
Date :    14/04/09
Comments and Suggestions :  Excellent site, very informative and easy to follow, thanks im a student and the information has been invaluble
First Name :    Sajid
Location :   Rawalpindi Pakistan
Your URL :   
Date :    27-03-2009
Comments and Suggestions :  
First Name :    Tom
Location :   England
Your URL :    http://uk.geocities.com/lethal0r/tommy_boy.html
Date :   22/03/2009
Comments and Suggestions :  wow - the 2nd nice geocities site I have seen today.
First Name :    Willie
Location :   South Africa
Your URL :   
Date :    20/3/2009
Comments and Suggestions :  The best web page I have ever seen. Thank you for all the the usefull circuits and many ideas.
First Name :    ANDY
Location :   SOUTH AFRICA
Your URL :   
Date :    18/3/09
Comments and Suggestions :  GREAT SITE. HAS HELPED ME A LOT
First Name :    DABOH
Location :   GHANA
Your URL :    kdabohnyantakyi@yahoo.com
Date :    20th March
Comments and Suggestions :  Dear RON I want to no more about change over switch.I want to embark a project work on it and i need your help.
First Name :    mike
Location :   south africa
Your URL :   
Date :   
Comments and Suggestions :  thanks for your projects
First Name :    mary grace
Location :   philippines
Your URL :   
Date :    March 7, 2009
Comments and Suggestions :   Thank you Mr. Ron for your website! (,) It contains a lot of circuits and helps us with experiments and projects! Very informative! Keep up the good work!
First Name :    dimitris
Location :   saloniki - greece
Your URL :   
Date :    16/1/2009
Comments and Suggestions :   i am realy liable for the info and the support i hav e found in theese e pages. A whole world appeared just with the enter button. Thanks a lot
First Name :   humayun khurshid
Location :   mirpur azad kashmir pakistan
Your URL :    humaunkhurshid@gmail.com
Date :    14-01-2009
Comments and Suggestions :  
First Name :    Bob Pearse
Location :    Australia
Your URL :   
Date :    13/01/2009
Comments and Suggestions :  I have not tried any of your circuits as yet but will be very soon. If they are half as good as your web site describinthem, how they work and how to build them they will be just great.
First Name :    Ahmad
Location :   UAE-Dubai
Your URL :    G150W@hotmail.com
Date :    12-1-2009
Comments and Suggestions :   a lot of thanks for mr.ron, u have a usfull site ,, but plz man could u write the equations u use in the reports to design ur circuit and plz could design for me a door corcuit with a password to stop the buzzer and plz suppoted by it report really than
First Name :    heinrich kapp
Location :   gauteng south africa
Your URL :   
Date :    03-01-2009
Comments and Suggestions :   grate website truly stuff that can be used keep it up Many thanx Heinrich
First Name :    olle
Location :   sweden
Your URL :   
Date :    081227
Comments and Suggestions :   I will contact you in 5-6 days Have a nice day Olle Svensson osvensson@telia.com I make Panoramaheads
First Name :    Obasanjo
Location :    Poland
Your URL :   
Date :   27/12/2008
Comments and Suggestions :  this is a good site keep it up
First Name :    Roland
Location :   Philippines
Your URL :   
Date :    12/26/08
Comments and Suggestions :   Nice site very imformative
First Name :   Joshua
Location :   Philippines
Your URL :    im.mark03@yahoo.com
Date :    December 16,2008
Comments and Suggestions :  Thanks for your posts.... Its a big help for me as a sutdent... May the god bless you... Have a nice day and thank you so much sir...
First Name :    Steve
Location :   Somerset UK
Your URL :   
Date :    5/12/08
Comments and Suggestions :  Very useful site,very clear instructions. Built no1 m/cycle alarm excellent and so simple to build.Works a treat. Keep up the good work Ron.
First Name :    Tom
Location :   Bungendore NSW
Your URL :   
Date :    23/11/08
Comments and Suggestions :  Thanks Ron....should be useful for a thermostat Im building.
First Name :    Balamurugen
Location :    INDIA
Your URL :    bushygs@yahoo.com
Date :    21-11-2008
Comments and Suggestions :  Your tips and details provide for timer switches were very useful. I am not a tech guy; however I was able to understand the same based on your notes and comments. Thanks a lot for such a useful information
First Name :    Don
Location :   S Wales
Your URL :    donpea08@tiscali.co.uk
Date :    18-11-2008
Comments and Suggestions :   Good informative website,especially the links to the free software.
First Name :    CY
Location :   Malaysia
Your URL :   
Date :    17 Nov 2008
Comments and Suggestions :  Im impressed with your website and the circuits you share with everyone. The circuit and construction details are extremely useful and informative. Keep it up and thanks for the good job.
First Name :    Avinash
Location :   Mauritius
Your URL :   
Date :    17/11/08
Comments and Suggestions :   Thanks for your fantastic job.It was very useful to me.
First Name :    PRAKASH
Location :   SURAT
Your URL :    192.168.0.52
Date :    16.11.2008
Comments and Suggestions :  YOU WILL INFORMATION TO FRIDGE ALARM
First Name :    SUNNY
Location :   SURAT,INIDA
Your URL :   
Date :    14/11/2008
Comments and Suggestions :  ITS VERY MEANINGFUL & HELPFUL WEBSITE.CLEAR & SIMPLE INSTRUCTIONS MADE WEBSITE GREAT ONE.THANKS TO RON.
First Name :   roderick
Location :   cape town
Your URL :   
Date :    12-11-08
Comments and Suggestions :  thanks for all goodies and info on your site.guys like you should get medals. cheeers rod
First Name :    VAISHNAV
Location :   
Your URL :   
Date :   
Comments and Suggestions :  
First Name :    Norman
Location :   Enfield
Your URL :   audioloop
Date :    04/11/08
Comments and Suggestions :  
First Name :    AHMAD
Location :   Lahore Pakistan
Your URL :    07-0524
Date :    11/1/2008
Comments and Suggestions :  you should also place small circuits like voltage regulator using transistors and diodes etc
First Name :    Ian
Location :   California
Your URL :   
Date :    10-29-08
Comments and Suggestions :   Great site. plz make a keyboard switch for the enhanced qarage/shed alarm
First Name :    Colin
Location :    Southampton
Your URL :   colin.day1@tiscali.co.uk
Date :    21/10/08
Comments and Suggestions :  Great, but a question elsewhere
First Name :    Conrad
Location :   Thailand
Your URL :   
Date :    19 October, 2008
Comments and Suggestions :   I, know only basic electronics, and am happy to see circuits explained in Laymans words. I will e-mail you in Detail. Thanks for the fine work.
First Name :    yaw
Location :   West Jawa
Your URL :   
Date :   18 Oct 2008
Comments and Suggestions :  Nice.....very usefull for me, thanks boss...
First Name :    dick
Location :    usa
Your URL :    ram428@hotmail.com
Date :    10/16/2008
Comments and Suggestions :  just dropped buy to look.
First Name :    rahul
Location :   Amravati
Your URL :   
Date :    16.1.2008
Comments and Suggestions :   this is my first time i have visited ur site,this have helped me very much.thank u!
First Name :    seema
Location :    belgaum
Your URL :    seemak99@gmail.com
Date :    11-10-2008
Comments and Suggestions :  helful site
First Name :    J Scott
Location :   MA, USA
Your URL :   
Date :    Oct 9 ,08
Comments and Suggestions :  Fantastic Job Ron! The most clearly written explanation of CMOS (4011) Ive seen. A great deal of help with neatly represented examples. Thank you very much!
First Name :    Pravin
Location :    London
Your URL :   
Date :    09/10/2008
Comments and Suggestions :   I like your website. I keep comming back. Thank you for sharing your knolage.
First Name :    Alex
Location :    Brasil
Your URL :    icemansander@yahoo.com.br
Date :    2008/Oct/08
Comments and Suggestions :   Dear Ron ... thanks a lot for all informations and more you put here. Congratulations !
First Name :    dratonstills
Location :    east coast
Your URL :    na
Date :   
Comments and Suggestions :  very good info,thanks,it helped me understand some other things even more
First Name :    owerri egomugu
Location :   benin
Your URL :    not
Date :    2008
Comments and Suggestions :  great inded.owerri.egomugu@magane.net
First Name :    Frank
Location :   
Your URL :   
Date :   
Comments and Suggestions :  Thanks for publishing this suite of cirquits. Have sucessfully built one and it woked first time.
First Name :   CHARLOTTE N
Location :    MALAYSIA
Your URL :    charliemyself@yahoo.co.uk
Date :    19/09/2008
Comments and Suggestions :  thanks ron for all the circuits,you have actually helped me indirectly im most of my research when it comes to my projects...please continue GOD BLESS U.
First Name :   Sandra
Location :    Dunmow
Your URL :   
Date :    19.9.08
Comments and Suggestions :  dear ronnieroo, ive been building your circuits in my bathroom every night and day for the past 2 weeks, and they have brought me such joy, id just like to thank you. i have a shrine of you in my bedroom, however as i do not know what you look like, it is
First Name :    Ricardo
Location :   Miami
Your URL :   
Date :    09-10-2008
Comments and Suggestions :  Wow! This site is AWESOME! Thank God for the Internet and good people like you who put things out there for others to enjoy! Knowledge is power, and only a true guru shares his secrets for other to learn. Thanks Again!
First Name :    ng
Location :   malaysia
Your URL :   
Date :    19/08/08
Comments and Suggestions :   it a helpful info that u sharing with us,hopefilluy can come out some new info like 16 matrix kep pad shematic info.thanks you
First Name :   Tim
Location :   Colorado Springs, Colorado
Your URL :   mxmech2000@yahoo.com
Date :    08-18-08
Comments and Suggestions :   I always check your site, to see what new ideas you have. Im also looking into a shop door alarm, but instead of a bell. I want a multi-voice warning. Maybe even something that connects through usb to be able to download voices...
First Name :    babu
Location :   india
Your URL :    16/8/2008
Date :   
Comments and Suggestions :  thanx for the 4060 timer ciruit. i will tru it
First Name :    Jitendra
Location :   Fiji
Your URL :    URL
Date :    16/08/2008
Comments and Suggestions :  Excellent projects
First Name :   andy
Location :   south africa
Your URL :   
Date :    4/08/08
Comments and Suggestions :  great site. have looked for a long time to find a variable timer ie: different on and off periods. many thanks
First Name :    Alan
Location :   Memphis TN
Your URL :   
Date :    07-28-2008
Comments and Suggestions :  Thank you for this site. I plan to implement a device on my 1978 Triumph Bonneville (plan to go with neg ground). BTW I have a 7 month old Boxer pup that weighs in at 29 kg. Im sure he would like to rub noses with your cat. Thanks again for your sit
First Name :    stanley
Location :   nairobi kenya
Your URL :   
Date :    24/7/2008
Comments and Suggestions :  this is a very encouraging site for young developers who are interested in electronic.nice work.
First Name :    yuvraj
Location :   india (kolhapur)
Your URL :    yuvraj_gaikwad25@yahoo.com
Date :    22-07-08
Comments and Suggestions :  
First Name :    sev jojo alcantara
Location :   philippines
Your URL :   
Date :    july 22 2008
Comments and Suggestions :  try to make a prototype of all pin of your circuits electronic door release
First Name :   Kel
Location :    Arizona
Your URL :   
Date :    7/18/08
Comments and Suggestions :  Awesome website! Well laid out, really good information. Many, many thanks!
First Name :    Guillaume du Toit
Location :   South Africa
Your URL :   
Date :    19 July 2008
Comments and Suggestions :  Hi. This is the most interesting and helpful source of circuit diagrams on the internet. Thanks
First Name :    Miodrag aka Chuck
Location :   Belgrade, Serbia
Your URL :   www.mykrajce.com
Date :    07 July 2008
Comments and Suggestions :   Your cat likes electronics too? He is very nice. Best Regards, Chuck
First Name :    Appaya
Location :   Mauritius
Your URL :   
Date :    03.07.2008
Comments and Suggestions :  very nice, appreciate your knowledge and sharing it with others. THANK
First Name :    Lukman
Location :    Indonesia
Your URL :    www.friendster.com\madluc
Date :    02-07-2008
Comments and Suggestions :  very cool... very cool...
First Name :    tauqeer
Location :   pakistan
Your URL :   
Date :   2july
Comments and Suggestions :  very nice ....good work
First Name :    mincing
Location :   india
Your URL :   
Date :    19-06-2008
Comments and Suggestions :  The site has really good sets of ckts. And simple explanation is worth appreciation Thanks and Please keep it up.
First Name :    Vick
Location :   
Your URL :   
Date :   18/06/08
Comments and Suggestions :  Ron, You are a genius man. Good Job. Your circuits really inspire people to learn and make electronics a Hobby. Keep it up. All the best for your future ciucuits. Electonically yours Vick :--))
First Name :    Helge
Location :   Søndersø
Your URL :    helge.dall@mail.dk
Date :   17.06.2008
Comments and Suggestions :  Fine examples of CMOS 4011 Applications and hints. CMOS 4011 can also be made to pulse generators and logic to make Switch - mode demoboards of Boost,Buck,Cuk and SEPIC - Show it.Nice Cat of Yours.
First Name :   MICHAEL BAKARE
Location :   NIGERIA
Your URL :   
Date :    14/6/2008
Comments and Suggestions :  I DONT REALLY KNOW THE BEST WAY TO APPERCIATE THIS SITE BUT ALL I CAN SAY IS RON YOU HAVE DONE A VERY GOOD JOB AND THANKS FOR THAT
First Name :    itti
Location :   Thailand
Your URL :   
Date :   14June2008
Comments and Suggestions :  Good electronic hobbies!
First Name :   Eris
Location :   
Your URL :   
Date :   
Comments and Suggestions :  
First Name :   cled alagban
Location :   philippines
Your URL :   
Date :   07-13-2008
Comments and Suggestions :  hi,ron can u published more circuit concerning about automatic on/off timer using micro controller ic..thanks & more power!....
First Name :    MARK
Location :   JHB SOUTH AFRICA
Your URL :   
Date :   12/06/2008
Comments and Suggestions :  GREAT SITE I APPRECIATE YOU SHARING YOUR KNOWLEDGE
First Name :    alagban,cled
Location :   philippines
Your URL :   
Date :   7-06-2008
Comments and Suggestions :  have a nice day...more power & GOD BLESS U ALWAYS..!! P.S DONT 4 GET 2 PUBLISHED MORE CIRCUIT,,,
First Name :    Jawaharlal
Location :   Chennai India
Your URL :   
Date :Jun 6,2008   
Comments and Suggestions :  
First Name :    Jack Houck
Location :   Omaha, NE USA
Your URL :   
Date :   6-04-08
Comments and Suggestions :   Ron has done an admiral job of explaining his circuits and a bullet proof, step by step procedure of how to build them comlete with illustrations so you cant fail. Also included are suppliers for obtaining the components. A wonderful website!
First Name :    aba
Location :   imo
Your URL :   werri@yahoo.fr
Date :    02-06-08
Comments and Suggestions :   i love this page
First Name :    Kabeer
Location :   Pakistan
Your URL :   mkkhanyz@yahoo.com
Date :    May 29th 2008
Comments and Suggestions :   I appreciate your needful help regarding making cirsuits. Very good and appreciable approach.
First Name :    renjith
Location :   india
Your URL :   
Date :   22.05.2008
Comments and Suggestions :  qddqd
First Name :   Ian Thompson
Location :   Yorkshire England
Your URL :    Dont have one
Date :    21-05-2008
Comments and Suggestions :  Great website, lots of very interesting projects.
First Name :    cled alagban
Location :   philippines
Your URL :   bacolod city
Date :    05-19-2008
Comments and Suggestions :  hi,ron..yur site is very usefull and very educational,by God bless u always..!
First Name :    David Lovering
Location :   Los Angeles CA U.S.A.
Your URL :   davidlovering.com
Date :   May 17th 2008
Comments and Suggestions :  Thanks Ron so much for the information youve provided. Detailed and very useful. Keep up the good work.
First Name :   cled
Location :   phil
Your URL :   
Date :    05-14-2008
Comments and Suggestions :  no
First Name :    aba
Location :   owerri
Your URL :   none
Date :   22 05 2008
Comments and Suggestions :  i love this page
First Name :    Hanz
Location :   Malaysia
Your URL :   
Date :    06042008
Comments and Suggestions :  I was searching for anti burglar circuit to protect my house. my house just been break in. so i think this is the time i spent some time to protect my home. i found out you have quite broad range of security circuits.. you gave me lots of information.. an
First Name :    Kiran
Location :    India
Your URL :   
Date :    06.05.2008
Comments and Suggestions :  The site is very useful and helped me for many designs and develop ideas, thanks
First Name :    maga
Location :    niger
Your URL :   
Date :    3 may 2008
Comments and Suggestions :  oooooooooooooooooooooooo
First Name :    James Ndegwa
Location :   Nairobi Kenya
Your URL :    ndegwa19com@yahoo.com
Date :    22/04/2008
Comments and Suggestions :  Exellent work i really find these project very informative!!! Its awesome!!
First Name :    Steve
Location :   Salt Lake City, Utah
Your URL :   
Date :    04/18/08
Comments and Suggestions :  
First Name :   Claes
Location :   Sweden
Your URL :   
Date :   April 11 2008
Comments and Suggestions :  Thanks very much for your very helpful circuits
First Name :   Kabiru A. Ahmed
Location :   Nigeria
Your URL :    kbutimate@yahoo.com
Date :   07/04/08
Comments and Suggestions :   i just wish to recommend you for your jobs weldone. Same time i wish you could mail me some high current inverters schematic diagrams; eg: 12volt 40Amps input-to-220volt 2000 to 5000Amps output. I will be must gratful if my request is given due considerat
First Name :    Francois
Location :   Pretoria, south africa
Your URL :   
Date :    2 april 2008
Comments and Suggestions :  Love your site!!
First Name :   Rafi
Location :   Pakistan
Your URL :   
Date :    18-03-2008
Comments and Suggestions :  excellent. you are genious.
First Name :    Gary
Location :   Ontario, Canada
Your URL :   
Date :   March, 2008
Comments and Suggestions :   Enjoyed viewing your great collection. Projects and circuits are excellently documented and easy to understand. Would like to see more on the timing of the Cmos 4060 used in the 24hr Timer.
First Name :    dennis
Location :   india
Your URL :   dennisdevasia@yahoo.co.in
Date :   05.03.2008
Comments and Suggestions :  very good description.thanks
First Name :    RANI
Location :   PAPUA NEW GUINEA
Your URL :   
Date :    22/02/08
Comments and Suggestions :  VERY INFORMATIVE, KEEP UP THE GOOD WORK!
First Name :    Multi
Location :    Scotland
Your URL :   
Date :   22 Feb 2008
Comments and Suggestions :  Fantastic Site. Im Studying an HNC in electronics at the moment. And reading your information on the complimentary latch is the first time ive really understood Transisters.
First Name :   MGBADA JOE
Location :   BENIN
Your URL :   
Date :    21/2/2008
Comments and Suggestions :  I LOVE THIS PAGE. KEEP UP THE GOOD WORK
First Name :    sarah
Location :   malaysia
Your URL :   danny_yerk@yahoo.com
Date :   13 february 2008
Comments and Suggestions :   i was thankful for accidentally found your website while searching for some information for my project..it really help me a lot as im a engineering physics student and my lecturer keep on teaching us to be independent..thanks...
First Name :   Ed
Location :   USA
Your URL :   
Date :    2-13-2008
Comments and Suggestions :   great site, looking foreward to building a few circuts. Its people like you that make the internet a great source for info. Thank you
First Name :    keth
Location :   phillippines
Your URL :    fhats
Date :    feb 10,2008
Comments and Suggestions :  help us..
First Name :   kamerala
Location :   turkey
Your URL :    cerk_lover22@hotmail.com
Date :    25 jan 2008
Comments and Suggestions :  Excellent stuff !!!
First Name :   John
Location :   Queensland Australia
Your URL :   qsepl@bigpond.com
Date :   19/01/2008
Comments and Suggestions :  Great site with plenty of nifty circuits
First Name :   GAYAN
Location :   S ASIYA
Your URL :    +94
Date :    2008 01 17
Comments and Suggestions :  THANK YOU FOR EVERY DETAILS HOPE YOU WILL CONTINUE THISE THING. ITS NICE TO BE YOUR FRIEND IF YOU DONT MIEND SEND ME AN E-MAIL WWW.TESCO@SLTNET.LK THANKYOU, GAYAN.
First Name :   chandru
Location :   india
Your URL :   dely
Date :   13/01/2008
Comments and Suggestions :   hi this detail is very use full to me. thank you
First Name :    Jack
Location :   SC
Your URL :   
Date :    12/31/07
Comments and Suggestions :  Great alarm circuits!
First Name :   rob
Location :   mars
Your URL :   www.url.com
Date :   13/01/2008
Comments and Suggestions :   keep up he good work email me if you want a job at nasa.
First Name :   Bob
Location :  england
Your URL :   sorry private
Date :   22/12/2007
Comments and Suggestions :  excellent easily understood offerings with techy advice if you need it, Very Very Good.
First Name :    shihab
Location :  Dubai,UAE
Your URL :   
Date :   18.12.2007
Comments and Suggestions :  thanks alot for your free circuits I will try to build a Burglar Alarm Circuits. Ill tell you
First Name :    Brin
Location :   none
Your URL :    none
Date :    none
Comments and Suggestions :   Hello, nice site :)
First Name :   reggie aspiras
Location :   philippines, manila
Your URL :   
Date :   nov. 30, 2007
Comments and Suggestions :   nice work huh...
First Name :    JITENDER
Location :   mohali
Your URL :   
Date :   17/11/07
Comments and Suggestions:  i have earned a lot of knowledge. thaks sir, i have also suggested my friends to go to this site.
First Name :    Gustavino M
Location :   Indonesia
Your URL :    -
Date :    16 November 2007
Comments and Suggestions :   All information very useful. Thank you God Bless you always Kind regards
First Name :    Cornel
Location :   South-Africa
Your URL :   
Date :   13 Nov 2007
Comments and Suggestions :  
First Name :    Parvez
Location :   Karachi-Pakistan
Your URL :    parvez@synergy.com.pk
Date :    November 12, 2007
Comments and Suggestions :   Your articles were found Practical, Useful & Informative. Keep it up.
First Name :    Neville
Location :   Port Nolloth
Your URL :    Telkomsa.net
Date :    06-11-07
Comments and Suggestions :  Keep up the good work.
First Name :    Geoff
Location :   Sydney, Australia
Your URL :   
Date :    5 November 2007
Comments and Suggestions :  Well done Ron. I have never seen circuit designs with as much clearly documented descriptions and construction details. Rgds, Geoff
First Name :   pmoyer1964
Location :   Arizona
Your URL :    eldiablo1964@msn.com
Date :   Nov 1, 2007
Comments and Suggestions :  Great site and excellent circuits.
First Name :    ernie
Location :   phoenix az
Your URL :    ernieracette@aol.com
Date :    oct 26, 07
Comments and Suggestions :  
First Name :    Mannir
Location :   Nigeria
Your URL :   mnrusman@yahhoo.co.uk
Date :   23/10/2007
Comments and Suggestions :  Hey, It is very great,nice and fantastic u pls keep it up.
First Name :   Philip
Location :   Melbourne Australia
Your URL :   
Date :   21 october 2007
Comments and Suggestions :  
First Name :    SCHALK
Location :   SOUTH AFRICA
Your URL :   
Date :    2007/10/7
Comments and Suggestions :  very nice circuits
First Name :    feddyricko
Location :   naga city
Your URL :   
Date :   10/05/07
Comments and Suggestions :   i cant make the modular alarm to work on EWB
First Name :    ABA
Location :    IMO
Your URL :    NONE
Date :    4-9-2007
Comments and Suggestions :  I OLIVE THE PAGE
First Name :    pranab kumar
Location :   calcutta India
Your URL :   datelsu@dataone.in
Date :    29.09.07
Comments and Suggestions :  some circuits of scanners would bwe welcome
First Name :    Shashi
Location :   Bangalore
Your URL :   
Date :    28-09-2007
Comments and Suggestions :  Great source of information
First Name :    tj
Location :   Edmonton,AB,Canada
Your URL :   
Date :    Sep, 24, 2007
Comments and Suggestions :  i built the 555 -Timer Based Motorcycle Alarm for my fathers sport bike, i added a relay to immobalize the bike and it works great and hes had no trouble with it at all thanks Ron!!!
First Name :    Patrick Lettman
Location :   South Africa
Your URL :   
Date :    19-09-2007
Comments and Suggestions :  You have lots of good stuff for everybody. interesting also just to scroll through to have a look at all the projects Looking forward to new additions
First Name :    Numair
Location :   pakistan
Your URL :   
Date :    16 sep 2007
Comments and Suggestions :  nice loads of help in designing vero board
First Name :    Elektrolytic
Location :   NJ, US
Your URL :   
Date :    03Sep2007
Comments and Suggestions :  Nice assortment of circuits, thank you for sharing!
First Name :    ian cox
Location :    ipswich
Your URL :   
Date :    21/08/07
Comments and Suggestions :   good stuff you must have spent hours putting this together best wishes G6 UAI
First Name :    MatrixCat
Location :   Warsaw, Poland
Your URL :   
Date :   2007-08-21
Comments and Suggestions :  Great site! Practical info. Well organised. And a cat! =^.^=
First Name :    sandeep
Location :    india
Your URL :    deep.mulik@gmail.com
Date :    9aug2007
Comments and Suggestions :  thanks for this good site
First Name :    Taofeek
Location :   Ekiti State Nigeria.
Your URL :    drfix13@yahoo.co.uk
Date :   8/08/2007
Comments and Suggestions :  Your circuir is very useful,more grease to your elbow
First Name :    Rick
Location :   Vista, CA
Your URL :   http://www.tfb.com/~rnortham
Date :    8-7-2007
Comments and Suggestions :   Hi
First Name :    Manjil
Location :   India
Your URL :   
Date :    03/08/07
Comments and Suggestions :  I found your circuits very benificial to me Thanx
First Name :    mickolink
Location :   
Your URL :   
Date :   
Comments and Suggestions :  
First Name :   Lourens
Location :   SA
Your URL :   
Date :   30-07-2007
Comments and Suggestions :  Thanks
First Name :    Mark
Location :   NAga City , Bicol
Your URL :    mark_mcnl@yahoo.com
Date :    July 15
Comments and Suggestions :  Hi ron.. Thanks for ur circuits diagram.. eventhough i dont know how to read circuits you help me much.. Thanks alot!..
First Name :    ERIES
Location :   DAVAO
Your URL :   
Date :   JULY 15,2007
Comments and Suggestions :  OK
First Name :    S.E
Location :    Far far Overseas Away from You
Your URL :   
Date :    9 July 2007
Comments and Suggestions :  Nice Site ! Good Schematics and draws, simple to understand Do you think about make some Microcontrolled Alarm design?
First Name :    Marty
Location :   Fl.
Your URL :    sertomaman@gmail.com
Date :    07/08/07
Comments and Suggestions :   I am a retired electrical contractor, I want to thank you for sharing your knowledge free to those of us that have ideas on how to use them. One of your circuits will solve a long standing proublem in my shop air compressr (water) I have asked electrica
First Name :    Shafikul Azam
Location :   Bangladesh
Your URL :   shafikulazamkhan@yahoo.com
Date :    05/07/07
Comments and Suggestions :  Nice
First Name :   Sam
Location :   Blenheim NZ
Your URL :   
Date :   17-6-2007
Comments and Suggestions :  Loads of great ideas, with lots of different applications, also the ability to take bit and pieces from different circuits is wonderful. With easy explanation and clear designs, iwill come back again and again.
First Name :    John
Location :   USA
Your URL :    http://vkbrryqf.t35.com/zippo-lighter
Date :    14.06.2007
Comments and Suggestions :   Thank you, it was interesting to read. GREAT information in your website - We would love to stop by and visit sometime. Youre truly an inspiration! Happy growing.
First Name :   Suen
Location :   HK
Your URL :   
Date :   14 Jun 2007
Comments and Suggestions :   Very helpful web-site.
First Name :    Steve
Location :    Ms.
Your URL :   
Date :    06/14/07
Comments and Suggestions :   Great pics. and Desc. of ckts. Thanks, Steve
First Name :    Blier
Location :    South Africa
Your URL :   
Date :    8 May 2007
Comments and Suggestions :   Excellent
First Name :    djusuf
Location :    indonesia
Your URL :    djusufmuhammad@yahoo.co.id
Date :    7 june 07
Comments and Suggestions :  good job
First Name :    Patrick Donovan
Location :    Cape Town - South Africa
Your URL :   mwpadony@mweb.co.za
Date :    2 June 2007
Comments and Suggestions :  Thanks for a very informative and helpful site. I will be visiting it lots!!
First Name :    James
Location :    London
Your URL :   
Date :    1/5/07
Comments and Suggestions :  Nice one, good circuits. Many thanks.
First Name :    FABIO
Location :    ITALY
Your URL :   ragiul@inwind.it
Date :    25/05/2007
Comments and Suggestions :  This site is one of the most useful ive ever seen thank you Ron! Your circuit gave me a solution ive been searching for so long! Youre Great!
First Name :    michael chisepo
Location :    Zimbabwe
Your URL :    mtchisepo@gmail.com
Date :    22/05/07
Comments and Suggestions :   its cool keep it up
First Name :    Rommel
Location :    Batangas
Your URL :    isan_01@yahoo.com.ph
Date :    05-14-07
Comments and Suggestions :   thanks for your help
First Name :    Jeff
Location :    Dallas,Tx.
Your URL :   
Date :    4.28.07
Comments and Suggestions :   I enjoyed browsing your website. A lot of interesting information. I was especially interested in the motorcycle alarm page. Thanks again for the info and keep up the good work.
First Name :    akshay
Location :    jain
Your URL :    aksshaycool@gmail.com
Date :    28/4/2007
Comments and Suggestions :  
First Name :    Mervin
Location :    India
Your URL :   
Date :    27-04-07
Comments and Suggestions :   Ron is one of the best persons i ve ever met no one is as kind n helpful in this field on the net as Ron Thanks Ron
First Name :    sebastien
Location :    france
Your URL :   merlavisse@msn.com
Date :    18/04/2007
Comments and Suggestions :  tres bon site , pleins dinfos tres inetressante, je vais faire une grande partie des circuits presents
First Name :    teo
Location :    turkei
Your URL :   
Date :   10.4.2007
Comments and Suggestions :  Thank you for providing such an immense help to electronic hobbiest, all will appreciate your behaviour as a pioneer. I hope I will also built such a wonderful web site in future.
First Name :    Gary Goh
Location :    Singapore
Your URL :   
Date :    31-03-2007
Comments and Suggestions :   Good info and helpful software. Keep up the good work.
First Name :    Henrii
Location :    Philippines
Your URL :   
Date :   19.03.2007
Comments and Suggestions :  Nice site you got here. I wanted to say THANK YOU, RON!!! Henrii
First Name :    Rich
Location :    Sheffield
Your URL :   
Date :    12/07/07
Comments and Suggestions :  Nice site mate. Im thinking of making an alarm and your site has some nice circuits to consider. Cheers.
First Name :   karvannan
Location :    trichy
Your URL :   ku
Date :    12.3.2007
Comments and Suggestions :  more simple circuit
First Name :    Jayaram
Location :    India
Your URL :   
Date :    11.3.2007
Comments and Suggestions :   ur really brilliant, are u done all this by ur own ,if s ur marvellous,i like to be an engineer because of my parents i am just a commerce graduate my e mail id is jayaram0000@yahoo.com after jayaram those are zeros
First Name :    ramanujam
Location :    india
Your URL :   
Date :    10.03.2007
Comments and Suggestions :   good
First Name :    Roger
Location :    Malaysia
Your URL :   
Date :    27 Feb 2007
Comments and Suggestions :   Finally I can stop yanking my hair out whenever I need to figure out how to position my components and wire them up :D Thanks a whole bunch and keep em coming
First Name :    oabode
Location :    nigeria
Your URL :   
Date :    23feb2007
Comments and Suggestions :   i think more elaboate cicuit diagrams would be very useful 4 upcoming engineers like me who desperately needs cct diagram on automatic power change over switch for my school project
First Name :    Petrus
Location :    South Africa
Your URL :   
Date :   23/02/07
Comments and Suggestions :   I like your circuits, i am a lan administrator that came out of the electronic repair industry, i still fiddle with the electronics as a hobby.
First Name :    nas
Location :    malaysia
Your URL :   nas_gla@yahoo.com
Date :    12/02/2007
Comments and Suggestions :  Very good and simple to learn
First Name :    Eduardo
Location :   metrosol@adinet.com.uy
Your URL :   
Date :    07/02/2007
Comments and Suggestions :   Congratulations for your great help. Best regards Eduardo Leal Uruguay
First Name :    ned
Location :    Dallas texas
Your URL :    narciso@wans.net
Date :    2 / 2 / 07
Comments and Suggestions :  good job
First Name :    Terry
Location :   Coquitlam, BC, Canada
Your URL :   
Date :    Jan 30, 2007
Comments and Suggestions :  AS AN ELECTRONICS HOBBYIST FOR OVER 40 YEARS, I ENJOY THIS SITE. FOR VARIETY OF USEFULL CIRCUITS, WITH EXCELLENT EXPLANATIONS PROVIDED, CLEAR AND CONCISE DRAWINGS AND TEXT. THANKS. CHEERIO! TW
First Name :    sha
Location :   
Your URL :   
Date :    30th jan 2007
Comments and Suggestions :   really helpful
First Name :   Faiz
Location :    Kandy, Sri lanka
Your URL :    ahmfaiz1@yahoo.com
Date :    28.01.2007
Comments and Suggestions :   I just had a view of your page, shall read more as it is interesting and will be helpful to me for to keep myself ocupied with small projects. I will be visiting your site often. Good luck. Faiz
First Name :    remi
Location :    england
Your URL :   
Date :    12 01 07
Comments and Suggestions :  
First Name :    Nancy
Location :    Malaysia
Your URL :   
Date :    18.01.2007
Comments and Suggestions :   vey good....
First Name :    Doug M
Location :    CA, USA
Your URL :   dougmcleish@hotmail.com
Date :    1/7/07
Comments and Suggestions :   Thanks for your help with the 4011.
First Name :    Chinelo
Location :    Nigeria
Your URL :   
Date :    4/1/07
Comments and Suggestions :   Keep it up i was looking 4 sometin on electric alarms.ill get back to u when i make it.tanx 4 ur help
First Name :    Gramo
Location :    Australia
Your URL :   
Date :    23DEC2006
Comments and Suggestions :   Nice circuits, PIC programming deffinetly takes the cake for security systems though!
First Name :    Dario
Location :    Argentina
Your URL :   
Date :    12/09/06
Comments and Suggestions :   Thx man... i maked your moto alarm... is very nice. thx again.
First Name :    alex afful
Location :    ghana
Your URL :   aaful@yahoo.com
Date :    08/12/06
Comments and Suggestions :   thanks for making such useful information avaailable to students who want to learn from you free of charge.God richly bless you . have a merry christmas and a prosperous new yaer.bye.
First Name :    Jadranko
Location :    Croatia, Zagreb
Your URL :   
Date :    2006-11-30
Comments and Suggestions :   Wery nice site!
First Name :    Bhaskar
Location :    India
Your URL :   
Date :    29th November 2006
Comments and Suggestions :   Good work! More motorcycle circuits needed
First Name :    bernadette
Location :    namibia
Your URL :   
Date :    23/10/2006
Comments and Suggestions :   its a very usefull site with usefull circuits to electronic hobbist.
First Name :    Selim
Location :    Bursa, Turkland
Your URL :   
Date :    16/10/2006
Comments and Suggestions :   Thank you for this great job and workmanship.
First Name :    Mike
Location :   New Iberia, La.
Your URL :   
Date :    10/13/2006
Comments and Suggestions :   How about a motorcycle alarm crcuit that triggers a 2-12 VDC siren using a low voltage (0.3 to 0.5 VDC) already supplied by a factory alarm system that only blinks the turn signals.
First Name :    Steve
Location :    Bedford U.K
Your URL :   (useless up & down life?)
Date :    11 Oct 06
Comments and Suggestions :   Thankyou Sir, Im an alarm engineer here in England, I was looking for some low current circuits for remote locations... GREAT SITE & LINKS - Write On!
First Name :    John
Location :    MALAWI
Your URL :    -
Date :    06/09/06I
Comments and Suggestions :   I just would like to congraturate you for such a chcllenging step you taken, please, keep it up brother.Doing electrical engineering year 4.
First Name :    sunny
Location :    PAKISTAN
Your URL :   
Date :   
Comments and Suggestions :  VERY GOOD WEBSITE
First Name :    Madhav
Location :    India
Your URL :   
Date :    9th September, 2006
Comments and Suggestions :   Good job Ron, students like us definitely stand to benefit in pursuing our hobbies.
First Name :    Jyoti
Location :    Surat, India
Your URL :    jyoti_sgoyal@yahoo.co.in
Date :8 sept. ,2006   
Comments and Suggestions :  Hii.......it was an awesome experience to come across ur kits and circuits.i m a final year engineering student who was looking for some wonderful projects to be done in final year.so if u have some ideas .kindly give them.thank u
First Name :   Donald
Location :   Hixson, TN
Your URL :   
Date :   09-06-2006
Comments and Suggestions :  Thoroughly enjoyed looking at your work. Ill be back to try some of your circuits. The presentation is remarkable, clear concise! Thanks; Don Bauer
First Name :   GABRIEL
Location :   GHANA
Your URL :   
Date :   06/06/2006
Comments and Suggestions :   SOME OF THE COMPONENTS CAN NOT BE OBTAIN FROM THE MARKET. I UGGEST THAT CIRCUIT SHOLD BE BUILT WITH MORE RESENT COMPONENTS. THANK YOU.
First Name :   Shsukat
Location :   Pakistan
Your URL :   Nil
Date :   04-09-06
Comments and Suggestions :   I Am thank full to you, about your schematics.\ Thanking You
First Name :   haris
Location :   dluffy
Your URL :   aristikl713@yahoo.com
Date :    27th August 2006
Comments and Suggestions :
First Name :   martinho
Location :   windhoek
Your URL :   callme246498@yahoo.com
Date :   
Comments and Suggestions :  grace to you can you kinde tell me if i can design the power suplly to supply the voltage to the fencing system that i am designing using the ignition coil. will it withstand the back current when the coil collapse due to the action of oscillation circuit
First Name :   james
Location :   guyana
Your URL :   http
Date :   15/09/2006
Comments and Suggestions :  Hi ron , i have found your schematics to be the best so far on the internet. All of your diagrams are pratical and everyone i have tried was 100% sucessful. Thank you ron.You have made electronics look so easy for me.I will continue to use your webpages.
First Name :   david
Location :   south africa
Your URL :   sourcecode666666@yahoo.com
Date :   11 august 2006
Comments and Suggestions :  A very informative and well laid out site. The alarms should come in handy where I live. Thank you RON J
First Name :   Franklin
Location :   Jamaica
Your URL :   
Date :  
Comments and Suggestions :  
First Name :   CHRISTOPHER
Location :   MALTA
Your URL :   
Date :   30-07-2006
Comments and Suggestions :  GOOD JOB , I LIKE TO EXPERIMENT WITH SOME CIRCUITS AND I FOUND THAT THESE ARE VERY GOOD PROGECTS TO LEARN SOME ELECTRONICS. THANKS FOR YOUR SUPPORT. (C.G)
First Name :   Arturo
Location :   Dominican Republic
Your URL :   Arturo366@verizon.net.do
Date :   07 16 2006
Comments and Suggestions :  I like your Hijack alarm, I am one to think that 1)it should allways be armed without pressing any buttons to start your vehicle. 2)If it is going to shut off the engine because by accident the drivers door was opened while the engine was running, a bu
First Name :   Simeon
Location :   Bulgaria
Your URL :   mukta@mail.bg
Date :   15.07.2006
Comments and Suggestions :  Great projects Ron.I want to make a 12-minute repeating interval timer, but yours is beyond my abilities. Can you indicate a simpler (using 555,556) schematic ?
First Name :   Bona
Location :   Nigeria
Your URL :   muchiskino4christ@yahoo.com
Date :   14-07-2006
Comments and Suggestions :  Please I want you to be sending new developments on electronics and as am a biginner also be sending to me the easiest way to be constructive and creactive. Also am pleading for a way to be execcting my projects without much stess and then to be having a
First Name :   Jeffrey
Location :   Kenya
Your URL :   
Date :   July 13, 2006
Comments and Suggestions :  Congratulations for great work
First Name :   sooct
Location :   Malaysia
Your URL :   
Date :  
Comments and Suggestions :  
First Name :   Yaqoub
Location :   Nigeria
Your URL :   
Date :   25-may-2006
Comments and Suggestions :  Hello, Ron thank you very much for providing such an imformation about yourresearch and profession. Hope you will have more courage nexttme
First Name :   nnamdi
Location :   nigeria-enugustate
Your URL :   alumnnamdi@yahoo.com
Date :   15-05-06
Comments and Suggestions :  continue with the good design
First Name :   Ragav
Location :   India
Your URL :   
Date :   May 14 2006
Comments and Suggestions :  Hiya, Nice Site....Will vist more often... 73s Ragav
First Name :   gavin
Location :   gloucester
Your URL :   electronics
Date :   12/5/06
Comments and Suggestions :  great
First Name :   Simon
Location :   Australia
Your URL :   vk4tsc@optusnet.com.au
Date :   07/05/06
Comments and Suggestions :  Interesting site. I have bookmarked it for when I have more time to have a real good look.
First Name :   Nick
Location :   Bude, Cornwall, UK
Your URL :   
Date :   04.05.06
Comments and Suggestions :  Your site is really useful it will definitely help me with my project i will recommend you to my friends.
First Name :   Dean
Location :   Kentucky
Your URL :   colonel74@bigsandybb.com
Date :   4/27/06
Comments and Suggestions :  Great site. I plan to use some of your designs soon.
First Name :   Mamun
Location :   Bangladesh
Your URL :   
Date :   16-14-06
Comments and Suggestions :  
First Name :   chi
Location :   Malaysia
Your URL :   @yahoo.com
Date :   27.03.2006
Comments and Suggestions :  Thank ron i am so glad i found your site, vey usful.l circuits projects to make
First Name :   anthony
Location :   ormoc city, philippines
Your URL :   
Date :   03-15-06
Comments and Suggestions :  I like your way of explaning about all your projects which ive done ryt now. especially the motorcycle alarm. I hope youve always have a very good ideas to share with us. thank you, good luck and more power...
First Name :   catherine
Location :   philippines
Your URL :   @ yahoo.COM
Date :   03-09-06
Comments and Suggestions :  You have a nice projects which can help our society.and ive learned a lot.
First Name :   Vincent
Location :   Banga, Aklan Phils.
Your URL :   incent_mae16@yahoo.com
Date :   02-20-2006
Comments and Suggestions :  i am just a fifth-year student of B.S. in Electrical Engineering and i am interested in your circuits for this is part of the requirements i must accomplished under my course. thank you so much for this oppurtunity that students like me can find it easy t
First Name :   Richard
Location :   Crown Point, NY
Your URL :   
Date :   2/19/2006
Comments and Suggestions :  Do a lot circuit building and want to thank you for the schematics
First Name :   graham
Location :   southampton
Your URL :   
Date :   219/06
Comments and Suggestions :  thanx ron i am so glad i found your site, some very usefull circuit projects to make, i found your site because i was looking for a simple circuit to activate a siren, my use for this is for a golf driving range that we are presently building at my wo
First Name :   Lennox
Location :   Simanda
Your URL :   
Date :   16 February 2006
Comments and Suggestions :  Please can you send me the connection for the keypad that you used in four-digit keypad Im trying to build the circuit but I dont know the connection and how can I get the keypad
First Name :   matthew
Location :   North wales
Your URL :   
Date :  
Comments and Suggestions :  this helps me with my a level project
First Name :   Aniket
Location :   Pune , India
Your URL :   
Date :   12/02/2006
Comments and Suggestions :  All circuits are dam good but da problem is no pcbs!! so a bit hard to build
First Name :   Jefree
Location :   Malaysia
Your URL :   jefreesohdi@yahoo.com
Date :  3 FEBRUARY 2006
Comments and Suggestions :  good
First Name :   mugambi
Location :   kenya
Your URL :   
Date :   19/01/06
Comments and Suggestions :  thanks for your work
First Name :   emmanuel s. sanchez
Location :   Cebu City, Philippines
Your URL :   evjsanchez@yahoo.com
Date :   jan.18, 2006
Comments and Suggestions :  none
First Name :   Zephyr
Location :   Sitka, AK
Your URL :   none
Date :   1-6-06
Comments and Suggestions :  nice!! I am looking forward to using your circuits!! thanks.
First Name :   James
Location :   wv
Your URL :   
Date :   1/o4/06
Comments and Suggestions :  
First Name :   Dave
Location :   South Africa
Your URL :   
Date :   26 Dec 2005
Comments and Suggestions :  Well done Ron. I need an alarm on my garage and I think your site has been a great help in this regard.
First Name :   Paresh
Location :   India
Your URL :   
Date :   17th December 2005
Comments and Suggestions :  Hi Ron Excellent designs and helpful explanations. Many Thanks
First Name :   Ahmed
Location :   Bahrain
Your URL :   
Date :   25/11/2005
Comments and Suggestions :  Thank you for your circuits book.
First Name :   wallen
Location :   Philippines
Your URL :   
Date :   23Nov2005
Comments and Suggestions :  Thank you very much for such interesting and useful articles. more power!!!
First Name :   PAUL AA8OZ
Location :   DETROIT, MI.
Your URL :   
Date :   11-15-05
Comments and Suggestions :  VERY NICE WEB SITE WELL DONE A WELCOME ADDITION TO THE WEB
First Name :   bobo
Location :   Scotland
Your URL :   
Date :   11.11.05
Comments and Suggestions :  LIKED THIS SITE FOR VARIETY WITH USEFULL CCTS THAT CAN BE UTILISED IN OTHERWAYS GOOD EXPLANATION GIVEN ON ALL CCTS CLEAR DRAWINGS AND TEXT THANKS. CHEERS, BOBO.
First Name :   mickolink
Location :   ireland
Your URL :   mickolink
Date :   11 10 05
Comments and Suggestions :  
First Name :   mauro
Location :   croatia
Your URL :   
Date :  
Comments and Suggestions :  
First Name :   Liam
Location :   Chesterfield College
Your URL :   
Date :   1/11/05
Comments and Suggestions :  Great site, has helped me alot for my project on my electronic engineering course.
First Name :   EDUARDO
Location :   MONTEVIDEO - URUGUAY - SOUTH AMERICA
Your URL :   mariagr27@adinet.com.uy
Date :   Monday, October 11st 2005
Comments and Suggestions :  AT THE END OF THE WAY WE FIND SOMEONE WHO GIVES ALL WITHOUT ASKING ANYTHING IN RETURN. USEFUL WEBSITE, ENJOYABLE AND AFFORDABLE. AN ADVICE: I NUMBERED THE STRIPBOARD LIKE PLAYING A NAVY BATTLE. ROWS AND COLUMNS, IT IS AN EASIER WAY TO FIND THE COMPON
First Name :   Aaron
Location :   N.Ireland, Belfast
Your URL :   
Date :   23.09.05
Comments and Suggestions :  Brillant web-site very useful for project work. Thanks Aaron McKinstry
First Name :   king edmond
Location :   nigeria
Your URL :   king_edmond2002@yahoo.com
Date :   sept, 20,2005.
Comments and Suggestions :  thanks, i was given car alarm as my project. i was lucky to find and use your schmatic;though i had problem in the delay.thank God, i discovered the fault and rectified it.now it is working with 15min delay before the siren sounds.
First Name :   ayub
Location :   khi/ pk
Your URL :   ayhoo002@yahoo.de
Date :   19 sept 05
Comments and Suggestions :  Hi Ron you have a nice and cool way of explaining electronic circuits, the way and the trouble you took in designing the current limiter) breadboard , excellent !. keep up the good work buddy . ayub
First Name :   Skippa
Location :   LasVegas
Your URL :   
Date :   9/9/2005
Comments and Suggestions :  I like your web site, lots of info thanx.
First Name :   Ryan
Location :   Ontario Canada
Your URL :   
Date :   June 18 2005
Comments and Suggestions :  I have just recently build the modular alrm and 4 digit keypad. On the modular alrm i cannot seem to find a way to reset the alarm after it has gone off. The only way it will reset is if I turn off the power. I have gone over my board to make sure it is e
First Name :   Ilija
Location :   Macedonia
Your URL :   
Date :   16.06.2005
Comments and Suggestions :  perfect!!!
First Name :   warren
Location :   pa usa.
Your URL :   mew37@localnet.com
Date :   5/5/05
Comments and Suggestions :  you have a very nice site and very well done
First Name :   Paul
Location :   West Hartford, Connecticut USA
Your URL :   paul.polny@cigna.com
Date :   05/06/2005
Comments and Suggestions :  I was looking for a schematic for an inexpensive motorcyle alarm and happened across your design. I have to commend you on your organization and attention to detail on the presentation. I am intriqued by the what I have read and I am going to attempt to b
First Name :   Peter
Location :   Tasmania
Your URL :   peter_penton@hotmail.com
Date :   27/03/05
Comments and Suggestions :  To check track cut outs. print cut out page to a transparent sheet (the sort used for overhead projectors) Itis easy to lay over the board and see through
First Name :   Andrew
Location :   sudbury ont canada
Your URL :   http://www.mariencomputers.canadianwebs.com
Date :   march 15 2005
Comments and Suggestions :  great site am goin to build the transistor motorcycle alarm....very informative