This oscillator was found in a 70s RCA linear circuit manual. The oscillator makes use of an integrated device from the time, difficult to find today.
This oscillator has the output sine waveforms stabilized by a MOSFET. Equivalent types can be...
We found this synchrodyne receiver for the medium or short-wave band in the Radio Electronics...
This amplifier is suggested by Sanyo, for radio and recorder applications and makes use of a...