This OF-1 LO oscillator was found in a 1980s American documentation. The transistor can be any general-purpose and C1 / C2 are determined by the frequency.
The L coil of this receiver determines the received waveband. The circuit is from a 1963...
We found this circuit in the 1982 SGS Linear Integrated Circuits manual. The L78xx is equivalent to 78xx...
June 2016 - It can be obtained from Mouser Electronics this new chip for motor control, motion,...