[electroking]

Hello,

No coil in this radio is related to the operation of the tube heaters. Here is simple
test you should try with the radio not connected to the power line.

1 - With the radio off, connect your ohmmeter to the prongs of the power cord.
You should get an infinite reading.

2 - Turn the power switch on. You should get some low reading (maybe a few tens
of ohms). You are now measuring the cold resistance of the tube heaters in
series. If you don't get a correct reading, something is wrong either with one
or more tube, or with the wiring to the tube heaters.

3 - Assuming you got a correct result in the previous step, pull any of the tubes.
You should get an infinite reading again.

By the way, tubes take a few seconds to light up, as you can verify when testing
them on your tube tester. Good luck!

P.S.: the pilot light is a 110 V unit directly connected to the line, so it may
light up even with something wrong with the tube heater circuit.