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.

Ron J's Circuit Page

Latest Updates

9th July 2016

Repeating Timer No.9

New! This circuit has two independently adjustable 24-hour timers. There's a relay-timer that will energize the relay for up to 24-hours. And there's a repeat-timer that will restart the relay-timer - at regular intervals of up to 24-hours. It's a more versatile version of my first Repeating Timer.

Electronic Toggle Switch No.1

Update! I've added clear drawings and a photos of the - built and tested - breadboard layout. I've also added a free SiMetrix circuit simulation - and an improved fault-finding guide.

Electronic Toggle Switch No.2

Update! I've added clear drawings and a photo of the - built and tested - breadboard layout. I've also added a free SiMetrix circuit simulation - and an improved fault-finding guide.

Plan Your Breadboard Layout In Advance

Update! I've added a third template to the downloadable Resource File. I want to provide as many different breadboard templates as I can. So if there isn't one to suits your style of breadboard - please let me know.

How To Make Wire Links

Update! I use indoor telephone cable to make links for my breadboard and stripboard. The breadboard links are reuseable. So in this update - I've added a photo that shows how I sort and store them.

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 20MB. It includes the current updates. 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 20MB - And It's Completely Free.
Use It To Work Offline - Put It On Your Website - Or Just Pass It On.

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