This circuit was found in a 1964 Electronic Design. The circuit makes use of transistors of the time. Current equivalent transistors may be experienced.
This circuit is from an English magazine of 1977. The circuit is still current, just using BC547...
Connected to a shortwave receiver, this circuit is intended to enable the decoding of signals in...
This circuit was found in an Electronic Design from 1968. Its purpose is to produce synchronized trigger...