This high-gain circuit was found in an American publication from the 1990s. The circuit can use general purpose transistors and powered from a source or battery.
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...