06-29-2017, 10:33 AM
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
-------
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.
>>>>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
-------
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.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
