12-02-2016, 07:52 PM
Well I'm very embarrassed but I have to confess that my measurements this morning were done without the speaker being plugged back in (this is my first floor model). I forgot to plug it in. With the speaker plugged in the resistance across the feld coil is exactly 1700 ohms (pin 4 of tube 84 to pin 3 of tube 41). The field coil is good. The voltages on the XXL are low as I said earlier, but about 50V instead of 150V, and not the millivolt range. So I guess I'm back to the problem being in the XXL.