This circuit divides the voltage of a 12 V battery by 2 and can supply currents up to 1 A at the lowest voltage output. The integrated circuit used is not very common today.
Found in a 1968 American documentation, this circuit generates 1 kHz signals. The SCR used is not a...
This circuit with bass and treble control and 10 W of power per channel is from the SGS manual of...
More modern operational amplifiers can be used on this instrument to measure alternating voltages. The...