04-28-2011, 08:08 PM
Sorry to hear that your transformer is bad. I've heard that a 120/6.3v transformer can be used in a pinch. 120v side to the plate the 6.3v to the vc. I've got a lot of odds and ends here.
Great that it has a dynamic speaker. The field coil does a much better job at filtering the b+ than a 1K resistor. With the resistor scheme it takes a lot of capacitance to overcome the 60cy hum. Usually you can still hear hum with the volume down no so with a capacitor input with a choke/field coil in the circuit.
Terry
Great that it has a dynamic speaker. The field coil does a much better job at filtering the b+ than a 1K resistor. With the resistor scheme it takes a lot of capacitance to overcome the 60cy hum. Usually you can still hear hum with the volume down no so with a capacitor input with a choke/field coil in the circuit.
Terry
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!
Terry
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
