Identify Parts Please...

[milothicus]

i have an old radio i'm trying to fix, and while i've fixed a tube amp, this is the first radio i've disassembled.

there are two rectangular metal boxes about the same size as the 12av6 and other 7-pin tubes. they look like each one has 4 pins through the board, plus 2 prongs that are grounded, presumably for the outer shield.

markings on one are smudged, and the other is marked 72C170-2. the board has the tubes labelled, but not these things...

can anyone tell me what they are? i'll put up a pic if my description isn't clear enough.

[oc disorder]

I.F. and R.F. Coils most likely, in a shielded can.
If you can find the schematic you could reverse trace it .
ie find a known component that connects to it in the chassis.

[milothicus]

hm... ok. i don't have a schematic. that's why i was wondering what they are, so i know how to include them in the schematic as i'm drawing it.

[g1]

Do you have a schematic? If not what is make and model, maybe we can find one!

[milothicus]

i've done some searching, but came up with nothing.

it's made by Canadian Admiral Corporation, Chassis 5B4X, model 245X.

5 tubes: 50C5, 12AV6, 12BA6, 12BE6, 35W4

simple plastic case AM radio. the name on the front of the radio is simply 'Admiral'.

[Jazz P Bass]

All American Five Radio

AA5 History

[milothicus]

wow. i started with the wrong question. thanks for the link. this radio fits the description perfectly. i've got some reading to do.

[g1]

So this schematic should be very close. Probably some bad caps, maybe some resistors, hopefully no open coils. I usually find when I have to rewind them (after a few loops around the basement) that the break is about an inch from the "other" end of the coil.