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 used to test a triac and also to teach how it works. The load is an incandescent...
I found this circuit in an ond publication from 1958. The transistors are germanium types but the...
This circuit can be powered from 4 to 12 V sources. Pin 6 is the positive supply. See more about...