We found this circuit in a 1968 Electronics World. The circuit uses a transistor of the time providing a 16 dB signal gain with a 4 V output.
This QST circuit generates 4 frequency signals according to the crystals used. Transistors admit...
This countdown electromagnetic ring launcher was found in an Electronic Hobbyst Handbook from...
This TTL circuit was found in an American documentation from the 80s. The components are common in the...