This circuit produces a signal when the turn signal is on, preventing it from being forgotten in this condition. The circuit was found in a Popular Electronics from the 80s.
This circuit, which is part of a percussion instrument, was found in the September 1979 issue of...
The diodes are for general use and the transistors also in this Exclusive-OR circuit. The circuit may...
The frequency of this small transmitter, from a 1978 foreign publication, depends on the crystal. The...