We found this circuit in an old documentation, but the components used offer no difficulty in obtaining it. The CMOS integrated circuits are powered by a 6V supply.
This circuit converts pulse frequency to current, which is indicated on an analog instrument. The...
The microphone of this short-range MW transmitter should be low impedance magnetic (a small...
This microtransmitter operates at a frequency between 3.5 MHz and 10 MHz determined by the...