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.
Found in a 90s Popular Electronics, this circuit is interspersed between the filter and the...
This circuit is from an 80's documentation. The integrated circuit is from the time and the...
This circuit was found in a 80s American documentation. The zener diodes determine the points of...