The circuit has the traditional configuration that can be found elsewhere on this site. This is from 80s documentation and the LM350 can be used for higher current.
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...