This power source was found in a 1968 Electronics World. The transistors are from that time. The current of each output is limited by the transformer.
The purpose of this 1965 Radio Electronics circuit is to help observe cycloid waveforms on an...
Indicated as a joke or challenge this circuit shows how it is possible to control two lamps using...
This circuit was found in an Argentine Radio Escuela Gráfica magazine published in the 1970s. The...