|OddMix RADIOTECHNICS - 1937 RADIO|
Orion 22 Three Tube Radio 1937 Vintage Restoration Data Picture Schematic Page 2
The power transformer made with taps for all the many differing line voltages of the time, from 100 VAC to 240 VAC at 50 Hz. The set used a full wave rectifier using the standard AZ1 power rectifier dual diode tube. The AF7 reflex audion was followed by the powerful AL4 audio output stage. Audio input is provided for the record player, coupled directly to the base of the AF7. Ont the schematic R stands for SW, K is MW and H is for LW. This set, as many others at the time, used the speaker magnet coil as a power supply filter coil.