Please Note:
In Testgear, you can find testing circuits for sound, Infra Red and light, electromagnetic probes and other test circuits for components. All circuits
are listed alphabetically on the
Circuit Index page and in date order on the
update page. All contributors are listed on the
credits page.
If you have problems try my help page first. Most circuits on this site use
SI Notation. Due to large volumes of email, I regret that I can only
answer questions about circuits on my site.
For help or to contribute please
email me