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 has both frequency and duty cycle control. We found it in the October 1992 Radio...
This power supply is indicated for the supply of not very powerful car radios of the AM and FM...
In the absence of a modulation signal, the carrier of this simple short-range transmitter is cut...