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 circuit was found in documentation from the 70s. The transistors are from that time, but the...
This circuit can be used both as a beat oscillator and for testing and adjusting AM receivers for...
Found in 969 documentation, this circuit generates sweep signals from 1 Hz to 100 kHz. The...