This circuit amplifies signals from 0.5 Hz to 300 kHz. We found it in an old documentation. Equivalent transistors may be used. The gain is 20 dB.
Found in a 1967 Delco documentation, this circuit can deliver power from 40 to 50 W at 8-ohm load....
This Intersil circuit was found in a 1980s documentation. Operational are of the time, but current...
We found this circuit in a 1980s American publication from Motorola. Modern equivalent transistors...