Electronic Circuits and electronic circuits, electronic schematics plus an extensive resource for hobbyists, inventors and engineers

DiscoverCircuits.com, has 45,000+ electronic circuits, cross-referenced into 500+ categories.
We have searched the web to help you find quick solutions & design ideas.

Got Designs?
Please eMail
if you want me to link to and/or post your original design
NOTE:  We make every effort to link to original material posted by the designer. 
Please contact us if our link is not to your site!  Thanks.

Hobby Circuits designed by Dave Johnson

Last Updated on: Wednesday, June 02, 2021 04:39 AM

Text & Graphics Copyright David A. Johnson, P. E. -- ALL Rights Reserved.
LINKING to Dave's circuits is permitted but COPYING to your WEB SITE server IS NOT!

Buffer Amplifier Circuits
Amplifier -- Main Page          Math Functions -- Main Page

Circuits designed by David Johnson, P.E. :
AC Current Indicator Light

Battery-Powered LED Flashing Advertising #2

Characteristics of CMOS Logic Inverter Amplifiers

Flashing LED Advertising Badge #1

Form Push-Pull Driver using N-Ch & P-Ch Transistors 

High Impedance JFET Buffers

Inductive Pulse Receiver (175Khz)

Peak to Peak 300v Signal Generator

Hobby Circuits by Category

Dave's Circuits

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


HOME Schematics Index Hobby Corner Dave's Circuits Contact Info
Imagineering Ezine Dave Johnson & Associates Faraday Touch Switches

 About Us   |  Advertise on DiscoverCircuits.com   |   Report Broken Links  |    Link to DiscoverCircuits.com  |    Privacy Policy

Copyright  January, 1998 - June, 2021     David A. Johnson  All Rights reserved. 
 Linking is ALLOWED but COPYING any content or graphics to your web site is EXPRESSLY PROHIBITED.