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 project was found in a 1981 documentation consisting of a simple blinker with 2 transistors. The...
This complete experimental source of low current and very high voltage can generate voltages from...
The purpose of this circuit is to automate the activation of an aquarium air pump (aerator). The...