[morzh]

This is from Ron, post from 2013:

>>>>All 71 sets have the following tube lineup:

39/44 - RF amp
36 - Det-Osc
39/44 - IF amp
37 (connected as a diode) - 2nd Det.
39/44 - Audio Amp
42 - Audio Out
80 - Rectifier

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Considering that mysterious 56 tube the whole line-up has to be inspected. See if that 56 tube has separate filament wires (heater). If not (and I think it does not) then the tube is out of place and the rest also has to be questioned.

23X has a different lineup plus a push-pull output.


PS. I just looked at your photo of the under-chasssis, no, it does not have separate filament wires, all three tubes under the common shield on the right have the two wires going in parallel to them. So 56 tube, I think, was put there by mistake. Or....you read the number incorrectly.