This amplifier with the EL84 tube is a European commercial type from Corpim mounted on a printed circuit board. The diagram appeared in a September 1958 Radio Electronics magazine.
This circuit was proposed by a 1965 Electronic Design. Its purpose is to widen the line transients...
We found this receiver in old documentation. The transistor is made of germanium and the...
This simple battery tester uses two transistors to drive LEDs of different colors, indicating the...