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RE: ideas on variable filament supplies?

Since each tube heater pulls anywhere from 1 to 1.75 amps, I would probably have to use one per tube. The pots are fairly easy to come by but not the filament trans. I have a couple of different trans that could supply all the tubes so I would like to use one of them, but I am not hot on the idea of spending 60 bucks for a 10 amp variac.
I suppose I could put two each on a 5 amp pot and only have to use2 trans. Thanks for the idea, I will have to roll that one around a while.


Edits: 07/22/15
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