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Hoffman Amps Forum image Author Topic: Transformer question  (Read 2162 times)

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Offline Kcz5o

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Transformer question
« on: November 20, 2020, 08:33:12 am »
Can anyone tell me if I can substitute a power transformer that is rated at 700cvt@200mA for the primary with a power transformer for one that is 690cvt@150mA for the primary? All other windings are the same. I am running 2 EL34s and 3 12ax7s with a Gz34 rectifier? I am trying to put together an amp but don't know as much about transformers as I should.

Offline Latole

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Re: Transformer question
« Reply #1 on: November 20, 2020, 08:50:24 am »
« Last Edit: November 20, 2020, 08:54:29 am by Latole »

Offline Kcz5o

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Re: Transformer question
« Reply #2 on: November 20, 2020, 08:54:28 am »
thank you very much!

Offline pdf64

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Re: Transformer question
« Reply #3 on: November 20, 2020, 09:23:12 am »
It is worth noting that a typical Marshall EL34 pair with 3k4 OT draws far more than 150mA from the PT’s HT winding.
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