This 1965 Philips circuit uses old company transistors like the BFY51 and BFY50. The circuit is powered by 12 V and the power gain is 8.9 dB.
This clipper or limiter circuit limits the amplitude of AM or FM audio signals. The diodes are...
The varactor or varicap diode tunes the signal for listening to SSB signals on a common receiver. The...
This circuit is based entirely on SCRs. The circuit is from an American 80's documentation; and the PUTs...