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echidna
PostPosted: Thu Apr 08, 2010 7:24 pm 
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The voltages on my T15 are a bit low because i used a stock AC15 MT which has 285-0-285 and i only get 344v at the first filter cap and 120v at pin 1 of V1 when using a GZ34.

I've put in a GZ32 rectifier which has upped it a bit more by about 7v, but are there any other rectifiers, or even changes to the resistors on the filter caps which would bump up the B+ to the preamp tubes closer to the desired 145v? Are there any tricks i can apply or is the answer in changing the MT?
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coco
PostPosted: Thu Apr 08, 2010 8:32 pm 
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Would a diode on one of the leads to the rectifier be worth a try. I've never tried it.

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echidna
PostPosted: Fri Apr 09, 2010 3:19 am 
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will that boost it or reduce it?
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