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Hobby Circuits designed by Dave Johnson

Last Updated on: Friday, December 29, 2017 10:30 AM

List of Hobby Circuit Designs

Text & Graphics Copyright David A. Johnson, PE  --  ALL Rights Reserved.
LINKING to Dave's circuits is permitted but DO NOT COPY CONTENT to your WEB SITE server!


Waveform Generator Circuits
 
Circuits Designed by David Johnson, P.E. :

ELC signal between 200Mhz-400Mhz

Flexible Outputs from Square Wave Driver

Gated 125Khz Oscillator

Gated Crystal Oscillator with Very Low Power

Generate Short Delayed Pulse

Highly Stable Lower Power Oscillator

Improve the quality of standard TV images

LC Oscillator Medium Power 125Khz

LED Test Signal Generator-40Khz

Light to Frequency Converter

Oscillator Draws 2 Nanoamps

Oscillator with Ultra Low Current

Parallel LC Oscillator with CMOS Inverter 

Triangle Signal Generator

Turn D-Flip/Flop into a One Shot Circuit

Ultra Low Power 32Khz Crystal Oscillator

VCO from CMOS Schmitt Trigger IC

Version 4 of a Ultra Low Current Oscillator

Very Low Voltage Oscillator Circuit

1 Second One Shot Circuit

100Khz Low Power Light Receiver

125KHZ Medium Power Oscillator

125khz Oscillator with Medium Power

125Khz Ultra Pure Sine Wave Signal Source

40Khz Precision Triangle Generator

Astable Multivibrator with Very Low Power

Astable Ultra Low Power Multivibrator

Battery-Powered LED Flashing Advertising #2

Cheap Low Power 3v 2hz Oscillator

CMOS Inverter forms a Resonant LD Oscillator 

CMOS Inverters Form 125Khz Oscillator

CMOS Oscillator, Draws Only 0.5ua


 

Hobby Circuits by Category

Dave's Circuits

eMail:  David A. Johnson, P.E. about these circuits

 


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