This circuit was obtained from a Linear Technology manual from the 90's. The integrated circuits are from the time and could possibly be tested as modern equivalents.
This simple transistor radio with only two germanium transistors was found in a Japanese magazine from...
This trigger-delay circuit was found in a 1960s General Electric unijunction transistor manual. The...
Suggested by a 1965 Electronic Design, this circuit has a gain of 15 dB at 45 MHz and can be...