The diodes are for general use and the transistors also in this Exclusive-OR circuit. The circuit may have the values of the resistors changed to 5 V logic.
The time the output is high (1) of a TLCSSB in the astable configuration depends on Ra and C. The...
Found in a publication from the 60's, this power supply has no regulation, but only current...
This short-range circuit can act as a wireless microphone. We got the schematic and the printed...