[Patrick Turner]

To Jimmy.
I had a look at the MC3500 schematic. What a beast. It has 8 x 6LQ6 output tubes and complex input driver stages.
But the schema say there's a switch to select any load from 1 to 64 ohms.

So perhaps there's no winding strappings to solder.

6LQ6 is a TV line output pentode, and what I call a KWEER TUBE. Pda is 30W though. AFAIK, the 6LQ6 is no longer made and was noval based tube, like 7868 and a few others, so changing it all to suit 6L6GC or EL34, KT66, KT88 etc, etc, is a huge royal PIA, and then that's ruining American Heritage.
Patrick Turner.