[sdiy] Gapped vs. Ungapped Transformers?

[Michael Buchstaller]

>I thought by using a gap you're getting a combination of both
>materials, air and your core material, thus creating a core
>that has lower Mu than an ungaped core would have, but also
>increasing the maximum allowed H field before the the core
>(of combined materials) saturates.

Yes. This is the reason why output transformers for single ended
(tube) stages are always gapped - to avoid saturating the core
with the quiescent currend.


-Michael Buchstaller