This is the power supply for the EL34 tube amplifier given in V234. This power supply supplies all necessary voltages to the circuit.
This circuit is from a 1968 Electronic Design. The components are from the era and the operating...
This circuit was found in an Electronic Design from the 90s. The integrated circuit is from that...
This circuit, from a 1988 documentation, activates a relay for a period and has a touch shutdown as...