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Hobby Circuits designed by Dave Johnson

Last Updated on: Thursday, November 23, 2017 05:23 AM

Text & Graphics Copyright David A. Johnson, PE  --  ALL Rights Reserved.
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Flasher & Blinker Circuits
Circuits Designed by David Johnson, P.E. :
LED Flasher Universal 3v

LED Flasher-Wig/Wag

LED Flasher-Wireless Circuit

LED Flashing Badge #1

LED Flashing Badge #2

LED Lighthouse Flasher for HO Model Train

Lighthouse LED Flasher

Line Powered High Intensity LED Flasher

Line Powered White LED Array

Line-Powered Xenon Flash Transmitter

Low Battery Voltage Flasher

Low Current Flashing LED Power Indicator

Low Power LED Flasher

Low Power Sequential Flasher using 10 LEDs

Low Power Universal LED Flasher

Model Airplane Wing Tip Flasher

Model Train Lighthouse Flasher Revisited

Momentary Touch Activated Switch

Reduced Power Sequential LED Flasher

Revisited-Model Train Lighthouse Flasher

Super Bright 3v Powered LED Flasher

Ten-LED Sequential Flasher using Low Powr

Three Volt Universal LED Flasher

Three-Volt Low Battery Voltage Flasher

Three-Volt Powered Super Bright LED Flasher

Touch Activated Switch

Transmitter for Line Powered Xenon Flash


Ultra Low Current 3v LED Flasher #7

Ultra Low Power LED Flasher

Universal Flasher using a Latching Relay

Universal LED Flasher


Version a of 1.5v LED Flasher

Well Pump Flasher & Beeper

White LED Array that is Lined Powered

Wig/Wag LED Flasher

Wireless LED Flasher

Xenon Lamp Flash Detector Amplifier

Xenon Photoflash Controller

1.5v LED Flasher Version A

1.5V Touch Activated Switch

10 LED Sequential Flasher using Low Powr

12v Touch Switch Exciter Circuit

3 Volt Low Battery Voltage Flasher

3v Powered Super Bright LED Flasher

3v Universal LED Flasher

9v Powered Xenon Photoflash Controller

AC Line Powered LED Flasher

Advertising Badge #1 with Flashing LED

Advertising Badge #2 with Flashing LED

Amplifier for a Xenon Lamp Flash Detector

Battery Free LED Flasher

Battery-Powered LED Flashing Advertising #2

Capacitance Touch Switch


Controller for a 9v Powered Xenon Photoflash

Convert Solar Powered Light to Flasher

Detect Short Xenon Lamp Flashes

Detects Xenon Lamp Flash

Fake TV Camera Flasher


Flashing LED Advertising Badge #1

Flashing LED Power Indicator

High Intensity Line Powered LED Flasher

High Power LED Flasher

HO Model Train Lighthouse Flasher

HO Train Lighthouse Flasher Revisited

Increased power for LED Flasher

LED Driver-Wireless

LED Flasher needs only 1.5 VOLTS

LED Flasher that is Battery Free


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