I have had custom transformers wound for me for tube amplifiers many times, Will. I've had the best experiences with Edcor and Classic Tone / Magnetic Components. Some of that depends on whether you prefer plastic or paper bobbins. Heyboer is also a decent choice, though I prefer the other two. Folks recommended Merren to me, but I have no experience with them. I used to think Weber fit the bill as well, but found out their transformers are imported, so custom work is unlikely, and in your case, I cannot see it happening. Though Canadian, you might look into Hammond, which offers off the shelf units, and make some pretty big iron which might suit you. Due to the exorbitant cost of shipping, I otherwise avoid foreign outfits.
For what it's worth, there are more expensive / upscale like Mercury Magnetics, and even more esoteric outfits like Electra-Print, and Dynaquest. Honestly, I don't recommend going that route.
Just out of curiosity, do you need a UL tap?
For what it's worth, there are more expensive / upscale like Mercury Magnetics, and even more esoteric outfits like Electra-Print, and Dynaquest. Honestly, I don't recommend going that route.
Just out of curiosity, do you need a UL tap?