This receiver was found in a Popular Electronics from the 90's. Its different configuration shows a tuning circuit after the tube that works as an aperiodic amplifier. Observe supply voltages.
The load current can be adjusted up to about 1 A. The transistor can be TIP32 or TIP42. The...
The circuit shown in the figure is triggered by an input voltage determined by the setting of P1....
This circuit is from a 1980s Signetics documentation but is valid for modern operating. Next to...