Found in an American publication from 1968, this circuit generates pulses at a rate of 2,500 per second. The transistor can be replaced by a modern equivalent.
Found in documentation from the 1980s, this converter or inverter circuit uses components from...
This is the power step of the previous circuit. Output transistors must be mounted on good heat...
This is a conventional FM micro transmitter circuit already used several times on this site. The...