Please Remember:
New circuits are updated regularly and listed in date order on the update page. If you have problems
try my help page and remember that most circuits on this site use SI
Notation. Due to the volume of email that I receive each day, I regret that I can only answer questions about circuits featured on
my site. If you like this site please sign my Guest Book
To submit a circuit email: circuits@mitedu.freeserve.co.uk
Help with any circuit email: anc@mitedu.freeserve.co.uk
1. Gate Alarm Circuit by Rev Thomas Scarborough
2. 5 Zone Alarm system
3. Miniature Loop Alarm by Tomaz Lazar
4. Modular Burglar Alarm by Ron J
5. Water Activated Alarm by Tom
6. Buzzer by Tom
7. Radio Wave Alarm by Rev Thomas Scarborough
8. Enhanced Alarm Keypad by Ron J
9. 4 Digit Keypad by Ron J
10. Motorcycle Alarm by Ron J
11. Water Level Alarm
12. Single Zone Alarm by Ron J
13. CMOS Single Zone Alarm by Ron J
14. Mini Alarms by Ron J
15. Car Alarm and Immobilizer by Ron J
16. Hijack Alarm by Ron J
17. Snore Alarm
18. Motorcyle Alarm 2 by Ron J
19. Motorcycle Alarm 3 by Ron J
20. Motorcycle Alarm 4 by Ron J
21. Motorcycle Alarms 5 & 6 by Ron J
22. Automatic Intruder Alarm by Ron J
23. Earthquake Detector External link to Jochen Leug's site
24. Shed / Garage Alarm Circuit by Ron J
25. An SCR Based Burglar Alarm by Ron J
26. A Transistor Based Alarm by Ron J
27. One Time Only Alarm by Ron J
28. Battery Powered One Time Alarm Only by Ron J
29. CMOS 4060 Alarm by Ron J
