This circuit was found in an old documentation for radio amateurs. The circuit makes use of an uncommon integrated today. The circuit converts telegraph signals to be used on the computer.
The figure shows how to generate a 60 Hz clock signal for TTL circuits. The circuit is from Radio...
We found this circuit in a 1982 publication. This source allows an adjustment of the output...
This 200 kHz oscillator was found on a 90's EDN. It consumes only 2.8 mW and has CMOS compatible...