This circuit found in 1969 Popular Electronics is used to power a gas laser. The circuit produces a continuous voltage of 1,600 V. Diodes are high voltage types.
Found in an American documentation from 1968, this circuit uses transistors from the time. The...
This circuit is based on an LM123 and can supply output currents up to 3A. IB is typically 3.5A...
This experimental radio was obtained in an old Argentine publication. Germanium transistors are...