This circuit is from Delco Radio found in a 1968’s documentation. The transistors are of the time and are not given information about the driver transformer. Note the high supply voltage.
This Audio System circuit was found in 1965 documentation. It is a 50 ohm line circuit with 22 dB...
This circuit is from an Electronics Now, American magazine from December 1992. The magazine no...
This circuit allows to increase the output power of a 741 as an amplifier. The circuit is from a...