This circuit was found in a publication in the 1980s. Modern equivalent components can be used. The source must be isolated. The circuit includes an oscillator.
Found in Popular Electronics from the 90s, this circuit is intended for amplifying analog video...
We found this circuit in a 1967 Electronic Design. The circuit used a MOSFET of the time, which is...
This primitive solar radio was found in a Gernsback publication from 1960. The transistor is made...