12-31-2016, 05:11 PM
You can power up the radio but there will be no B+ voltage present on the tubes other than the rectifier.
The speaker field coil acts as a filter choke for the power supply. Without it connected no DC voltage will pass from the rectifier tube and first filter cap to the rest of the radio circuitry.
The speaker field coil acts as a filter choke for the power supply. Without it connected no DC voltage will pass from the rectifier tube and first filter cap to the rest of the radio circuitry.
