This old fashioned transistor amplifier was found in a publication of the year 1958. Transformer are the critical components in the circuit and power comes from 6 D cells.
This two-transistor amplifier has good gain but delivers a fraction of a watt of power. The...
This circuit was found in the 1969 RCA thyristor manual. The circuit has a limiter (clipping) with two 12...
This small amplifier, with output less than 1 W, was found in a 1960 transistor manual from...