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Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

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  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Electronic Projects

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  1. Electronic Projects 74
    1. Alarms 1
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    3. Automotive 3
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    5. High Voltage 0
    6. Light/Laser 0
    7. Microcontrollers 9
    8. Power Supply 24
    9. Remote Control 4
    10. Robotic 2
    11. Test Equipment 6
    12. Timers 1
    13. Other 22
  2. Electronic Theory 2
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  3. Software & Downloads 0
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  4. Code Repository 0

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Most resources

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View all featured resources
Resource icon 3lectrix
Water Level Alarm 2011-12-29
This circuit will produce an audible alarm when the water level reaches a preset level.The circuit
5.00 star(s) 1 ratings
Updated
Resource icon 3lectrix
Power Supply Failure Alarm 2011-12-29
Most of the power supply failure indicator circuits need a separate power supply for themselves. Bu
3.00 star(s) 2 ratings
Updated
Resource icon A
Momentary latching relay 2011-12-29
Just for fun I designed and built this simple circuit which drives a monostable relay by a singol m
0.00 star(s) 0 ratings
Updated
Resource icon S
Utility Trailer Taillight Interface 2011-12-19
This simple circuit was built 21 years ago, still works today. The PCB is designed around the se
0.00 star(s) 0 ratings
Updated
Resource icon ElectroMaster
TV Remove Blocker 2011-12-18
Just point this small device at the TV and the remote gets jammed.
4.00 star(s) 1 ratings
Updated
Resource icon alec_t
Dual-Mode Microphone Pre-Amplifier 2011-12-17
This is a microphone pre-amp which I designed for use with a SoundBlaster(TM) AWE 64 Value sound c
0.00 star(s) 0 ratings
Updated
Resource icon alec_t
Simple 3-Transistor Voltage Regulator (with current limiting) 2011-12-17
This article describes a simple 3-transistor voltage regulator with current limiting. It is based
0.00 star(s) 0 ratings
Updated
Resource icon alec_t
Auto Switch-Off Torch 2011-12-17
An elderly acquaintance who couldn't cope with battery recharging was getting through dry cells rap
0.00 star(s) 0 ratings
Updated
Resource icon Jon Wilder
Interfacing a Toshiba T6963C Equipped GLCD with a PIC Microcontroller 2011-12-13
So you happen to have a GLCD with the Toshiba T6963C display controller and you want to interface i
0.00 star(s) 0 ratings
Updated
Resource icon B
120v 4-LED Night Light 2011-11-13
This circuit uses can be used as a night light. It uses a 120v Mains to power the circuit. Works li
1.00 star(s) 1 ratings
Updated
Resource icon V
Capacitor ESR Tester 2011-09-13
This project was conceived as a way to enhance the collection of test equipment on my test bench. I
0.00 star(s) 0 ratings
Updated
Resource icon ElectroMaster
Simple Lie Detector 2011-09-10
Here's a simple lie detector that can be built in a few minutes, it is mean for fun and is obviousl
0.00 star(s) 0 ratings
Updated
Resource icon sheldonstv
Simple gated oscillator 2011-09-10
Here is a simple gated oscillator for you to play with. It's nothing complicated build wise but
0.00 star(s) 0 ratings
Updated
Resource icon 3lectrix
Infrared Proximity Detector 2011-09-10
This proximity detector using an infrared detector (Fig. 1) can be used in various equipment like a
0.00 star(s) 0 ratings
Updated
Resource icon 3lectrix
Light Activated Switch 2011-09-04
The circuit is based on National Semiconductors comparator LM311 (IC1) and an LDR. The non invertin
3.00 star(s) 3 ratings
Updated
Resource icon Boncuk
LM555 for Air Cannon 2011-08-27
The idea is to have two monostables timers (LM555) for triggering the air cannon. Timer1 (IC1) i
5.00 star(s) 1 ratings
Updated
Resource icon D
Simple, inexpensive vehicle immobilizer 2011-08-26
This vehicle immobilizer circuit is quite possibly the smallest, simplest, cheapest and easiest to
0.00 star(s) 0 ratings
Updated
Resource icon ElectroMaster
The 4017 Decade Counter 2011-08-01
[ATTACH=RIGHT]54828[/ATTACH]This handy Decade Counter (or sometimes called a Johnson Counter) can b
5.00 star(s) 2 ratings
Updated
Resource icon C
Simple Audio Signal Injector 2011-07-05
Here's a signal injector for those of us like me who don't have a bench full of nice test equipment
4.00 star(s) 1 ratings
Updated
Resource icon 3lectrix
How To: Test A Uni Junction Transistor 2011-07-03
You can easily test the health of a UJT (Uni junction transistor) by using a digital multimeter. Do
0.00 star(s) 0 ratings
Updated

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