[KCMike]

I just checked #50 bc wire wound It reads 20.9ohms and 286 ohms, not 263 as it should be. Is 286 too high? That looks like it might be hard to find a replacement for. Sorry morzh had to edit this. The speaker is the correct 660 ohm field coil 10.5 inch dia. It is an H-29 where as the original was H-16. I conversed with Ron Ramirez a while back and he said as long as it has the 660 field coil it will work but finding correct output tranny could be challenge. Thats why I bought the universal otse with the 7000ohm option for the plate load of the 42 tube.