This circuit was obtained from an American 80's documentation. The balanced mixer can be shown in CB4234. The circuit is for controlling RF signals in a modulation system.
This is a configuration much explored by assemblers, being found on this site in dozens of similar...
September 2016 – At Mouser Electronics is available audio drivers for the purpose of suitable...
This circuit has a thermal chamber that acts as a stabilizer, compensating for the ambient...