Transformer Recommendation, Please!

All about iron and copper.

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Evz
New Member
Posts: 49
Joined: Thu Aug 06, 2009 9:37 am
Just the numbers in order: 7
Location: Toronto, Ontario

Transformer Recommendation, Please!

Post by Evz » Sat Feb 20, 2010 7:15 pm

Ok so my build idea feature dual, independent 2204 preamps (4x 12ax7's) plus Larry's look +1 12ax7, and the PI +1 12ax7, at 100W so adding in another 4x EL34's, and switching circuitry;

so by my rought calculations, wiring all tube's heaters in parallel i get 6x 0.3A per 12AX7, plus 4x 1.5A per EL34, plus 0.5A for switching/ extra circuity giving me a total of 8.3A from my Power transformer that i need, along side with the 350V,

The Magnetics Components 800 replacement is only 7A, Hammond's replacement is 7A, and most others are 7-7.5A,

So would i get problems if i use 7A when my demand is 8.3? The only other PT i found that will work is O'netics SLO-100 PT, but that one is only sold as a bundle...

Let me know!
Evgeny N.

gldtp99
Senior Member
Posts: 343
Joined: Wed Dec 28, 2005 11:31 pm
Location: Texas

Re: Transformer Recommendation, Please!

Post by gldtp99 » Sun Feb 21, 2010 11:09 pm


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