This simple circuit is intended to test the zener test. RV1 can be calibrated in terms of voltage. The maximum voltage of the tested zener is that used in the circuit supply.
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...