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Single Ended Triodes (SETs), the ultimate tube lovers dream.

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Original Message

RE: Webster output transformers

Posted by tube wrangler on December 2, 2019 at 09:29:18:
Hi Dave!
This makes total sense to me.
People have run P/P transformers in SE
mode successfully (reports from others-- I
haven't tried it) when plate current is
held at about 1/3 of the transformer's rating--
or less.
My thinking on it is that different P/P
manufacturers build differently, so one
can only guess.
If anyone's going to do this, why not try
different current levels (on a given P/P
trans-- running SE) until you find an area where
you hear (or observe on your O'scope or analyzer)--
no saturation problems at full output-- and THEN,
take a good look at performance as you lower drive
levels.
Depending on what you find, you may elect to change
standing current level.
Full output isn't all that you need to know--
how does the trans behave at ANY chosen output level?
-Dennis-