This circuit was found in documentation from the 80s. The components are from the time, but the configuration can be adapted to use modern components.
In the 110 V network, capacitors of 200 V or more and in the 220 V network, capacitors of 400 V or...
The OC30 power transistor is an old type of germanium from the 60s. This amplifier, using this...
Found in Maxim documentation from the 90s, this circuit makes use of components from the period. The...