This 12.5 W quasi-complementary amplifier was found in a 1969 General Electric publication. Note the high supply voltage. Transistors are common types at the time.
The original purpose of this circuit, which we find in old American documentation, is to modulate an...
This circuit is from an American publication of 1978. It can be assembled with modern transistors, since...
This circuit detects changes in magnetic flux in a coil as an external magnetic field moves. The...