This circuit operates at a voltage of 1.3 V from a single mercury cell. We found in an old documentation and for the components used the frequency is 500 kHz.
This circuit is based entirely on SCRs. The circuit is from an American 80's documentation; and the PUTs...
January 2017 - Omron G7L-x relays for PCB mounting can now be purchased from Mouser Electronics. These...
We find this circuit in a 1974 Motorola PUTs (Unijunction Programmable Transistors) documentation. The circuit...