This circuit is from a Radio Electronics from October 1963. The transistor is a power transistor of the time, and two transformers are used. The input has 10k impedance and is powered by 12 V.
When you speak into the microphone of this circuit, the sound produced in the speaker resembles a robot...
The MC33064 can also be used on this circuit of Motorola's 1993 Linear Interface ICs. The circuit...
This circuit was found in a 1976 technical publication. It is possible to obtain an 11 dB gain in...