Free Circuits, Electronic Toggle Switches, Transformerless Power Supply, Make Your Own Stripboard, Convert Veroboard Layouts To PCB, Sequential Timer, Flashing LED Doorbells, Code Operated Keypad Switch, Electronic Safe/Door-Lock Release, Uninterruptible Power Supply, Bench Power Supply, Current Limiting Power Supply, CMOS Logic, Introduction to the Cmos 4001, Introduction to the Cmos 4011, Infrared Extenders, Timer Circuits, 24-Hour Timer, Electronic Burglar Alarm Schematics, Electronic Keypads, DIY Alarm Circuits, Regularly Repeating Timer, Door Alarm, Fridge Alarms, Burglar Alarm Circuit Diagram, Intruder Alarm Circuit Diagram, Simple Alarm Circuits, SCR Alarm Circuits, Alarm Power Supply with Battery Back-up, Security Circuits, Relay Alarms, Temperature Alarms, Battery Powered Alarms, Car Alarm Schematics, Motorcycle Alarms, Motorbike Alarm, Bike Alarm, Hijack Alarm, Fire-Door Alarm, Shed, Caravan, Mobile Home, Garage, Lock-up, Alarm.
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Ron J's Circuit Page

Latest Updates

25th February 2012

Repeating Timer No.8

New! This circuit has an adjustable output time of up to one-hour. And it can be set to repeat at intervals of up to 24-hours and beyond. It's a single IC version of my first Repeating Timer. And The Support Material Includes A Free Circuit Simulation.

Designing Stripboard Layouts

New! This page has everything you'll need to copy my design technique. I use a programme called Inkscape. It's available free - for Windows, Linux and Mac. And I've included a couple of sample layouts - to help you get a feel for how it works.

Useful Free Software And Practical Guides

Update! I've fixed a few broken links - and added a couple of new ones. There aren't many on the page. And each is accompanied by a brief description. So take a look. You may find something that interests you.

Download This Site

Update! You can download the current version of my entire site - in a Zip File. It's hosted by Google Sites - and it's under 15MB. It includes all the latest updates. You can use it to work offline - put it on your website - or simply pass it on.


You Can Now Download The Latest Version Of This Entire Site.
It's Under 15MB - And It's Completely Free.
Use It To Work Offline - Put It On Your Website - Or Just Pass It On.