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    filament transformer question

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    Captain Coconut

    Posts : 209
    Join date : 2009-10-13
    Age : 64
    Location : Great White North

    filament transformer question

    Post by Captain Coconut on Thu Feb 18, 2016 6:51 pm

    A 12AX7 (and its cousins) calls for 6.3VAC and 0.3 amps for the filaments. Would a transformer with a higher amp rating be beneficial? Less heat generated possibly? Or would too high a rating cause a reduction in voltage? Ohm's Law kinda' thing.

    MontanaWay

    Posts : 767
    Join date : 2014-02-06
    Age : 58
    Location : Cameron, Montana

    Re: filament transformer question

    Post by MontanaWay on Thu Feb 18, 2016 9:07 pm

    always go for higher rating. Say your total filament current is 1.2A, I would not go less than 1.5A, even 2A, as long as size and cost are within acceptable limits.
    Heck, you could go with 5A too....overkill though! Very Happy

      Current date/time is Fri Sep 30, 2016 2:38 am