Found in documentation from 1924, this 4-tube circuit has a heterodyne amplifier, as it was called.
This simple rhythmic light circuit uses a 110 V to 220 V transformer and can hold a good number of...
August 2017 - Mouser Electronics is supplying the Microchip DSC000 MEMS series oscillators for...
This circuit has its application suggested in an alarm system. The circuit is from an old RCA...