This circuit is from documentation from 1965 but can be easily implemented today using modern transistors. We can use BD136 for Q1 and TIP42 for Q2. The TIP must be equipped with a heat sink.
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...