This transformerless 16-ohm speaker circuit was found in a Radio Electronics from October 1963. The circuit is powered by 12 V and the gain is 50 dB.
This source allows the supply of laser diodes with voltages above 11 V. The circuit is from French...
This circuit uses an 18 MHz crystal to generate 36 MHz signals. We found it in an 80's...
This circuit monitors the current in the negative line. The circuit is from a 2005 Linear...