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RE: Dowdy choke for an headphone/preamplifier.

Posted by mqracing (M) on July 7, 2016 at 14:13:09

In Reply to: RE: Dowdy choke for an headphone/preamplifier. posted by FrancescoM on July 7, 2016 at 13:59:09:

The Dowdy choke is more than adequate for use with a TL-404.

I could make you a plate choke with double, triple or quadruple the L but at great expense monetarily and an even greater cost in terms of performance.

The Achilles heel becomes at least twofold. As the size becomes greater and greater so doesn't the winding capacitances increase to the point where your tube would have difficulty driving the capacitance.

As the core becomes larger and larger the energy required to kickstart the core and supply the magnetizing current becomes a limiting factor.

Builder of MagneQuest & Peerless transformers since 1989

Edits: 07/07/16

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Kimber Kable

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