This commercial transistor radio was manufactured by RCA in the 1960s. The circuit has only 4 transistors and is powered by a voltage of 9 V with an audio power of 20mW.
This powerful amplifier with 2N3055 transistors at the output provides a few tens of watts rms on a...
The circuit shown is suggested by National Semiconductor in its 1994 Linear Applications Handbook. We...
In the figure we have the circuit of a clamp-type microammeter described in the Radio Electronics...