This circuit of a few watts of power shows a typical configuration from the 70s using driver and output transformers. Output transistors must use a heatsink.
This circuit prevents the accidental inversion of the input polarity of a source to cause damage to...
Found in a Radio Electronics magazine from September 1958, this circuit has an LDR powered by the...
This circuit was found in General Electric documentation from the 1980s. The circuit is intended...