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Hobby Circuits designed by Dave Johnson

Last Updated on: Tuesday, June 01, 2021 03:22 PM

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 needs only 1.5 VOLTS

LED Flasher that is Battery Free

LED Flasher Universal 3v

LED Flasher-Wig/Wag

LED Flasher-Wireless Circuit

LED Lighthouse Flasher for HO Model Train

Line Powered High Intensity LED Flasher

Low Current Flashing LED Power Indicator

Low Power LED Flasher

Low Power Sequential Flasher using 10 LEDs

Model Airplane Wing Tip Flasher

Model Train Lighthouse Flasher Revisited

Momentary Touch Activated Switch

Reduced Power Sequential LED Flasher

Revisited-Model Train Lighthouse Flasher


Three Volt Universal LED Flasher

Three-Volt Low Battery Voltage Flasher

Three-Volt Powered Super Bright LED Flasher

Transmitter for Line Powered Xenon Flash


Ultra Low Power LED Flasher

Universal Flasher using a Latching Relay

White LED Array that is Lined Powered

3v Powered Super Bright LED Flasher

3v Universal LED Flasher

AC Line Powered LED Flasher

Battery-Powered LED Flashing Advertising #2

Capacitance Touch Switch


Controller for a 9v Powered Xenon Photoflash

Detect Short Xenon Lamp Flashes

Detects Xenon Lamp Flash


Flashing High-Power LED

Flashing LED Advertising Badge #1


HO Model Train Lighthouse Flasher

HO Train Lighthouse Flasher Revisited

Increased power for LED Flasher

LED Driver-Wireless


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