Motorola 21BT130BE-1 vertical output

[cluelessgame]

I've had this set for a while and it ran great - 100% original/non-restored - but then one day the vertical died. After tedious checking of every component of the vertical section, it appears that the only component that is conclusively off is the vertical output transformer (much to my horror ). It produces a resistance of 23.4 ohms across pins 2 and 3, as opposed to the 600 ohms the Sams sheet calls for. The resistance across pins 1 and 3 are in spec, however. Am I mis-measuring this? I always thought these transformers only went open when they failed.


The Sams parts sheet identifies it as a MOTOROLA 25D65840A13 (-AF), cross-referencing it with
MERIT P-2853
STANCOR VO-108
THORDARSON 26S22
TRIAD A-133X

does anyone know if there's any hope at all of finding a replacement? or am I stuck with an 80 lb paperweight?

one thing that does seem a little peculiar is that I'm not getting any sort of signal on the input grid of the vertical output tube (V10), nor am I getting 25V or signal on the plate of the vertical multivibrator (V6) but all of the components and the tubes themselves check okay.