Found in 1965 Delco Radio documentation, this circuit uses transistors from that era. Modern equivalents can be used. The characteristics of the inductor were not given.
The load on this amplifier is 8-ohm. We found the circuit in a 1972 Motorola amplifier manual. The...
This circuit can control a heating element with a current of up to 5 A. The integrated circuit must...
We found this circuit in a 2003 publication. The indicated coil is for capturing the signals in an...