This circuit was found in a 1964 Electronic Design. It generates opposite phase signals from an input signal. Modern equivalent transistors can be used in the same configuration.
This power control circuit was found in General Electric documentation from 1969. The table...
Found in American documentation, this circuit uses an automotive ignition coil to generate 20 kV. The...
We found this electronic organ circuit in a 1987 documentation. The circuit should be powered by...