Placed near a common receiver, this oscillator is intended to generate a beating signal to receive RTTY or SSB communications. The circuit is from old telecommunications documentation.
This Texas Instruments integrated circuit, available from Mouser Electronics, has a 91 dB common...
This circuit was obtained from a 1977 magazine, but can still be mounted using BC548 for TR1 and...
This oscillator or clock generator generates rectangular signals and frequencies up to 100 kHz....