This is one of the channels of an amplifier suggested by Westinghouse in 1970s documentation. The circuit uses components from the era and no information about the transformer is given.
Found in a Popular Electronics from the 90s, this circuit reaches 100 kHz and battery power is...
This high current regulator with low voltage drop was found in the datasheet of the used...
This circuit has a gain of 34 dB and a good power to be used as an audio booster in cars. The...