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dsavitsk

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I'm tempted by those L-2 boards, can we buy the torpedo output transformers by themselves directly from Edcor?

 

Yes. You might be able to convince them to use nickel cores on a pair. It might do good things.

 

You could also use something else off board. I also might have a source for more bobbins. With them you could have more transformers made. The problem is that Jack does not stock the nickel, so you'd have to make a minimum buy which will run close to $1K. With sufficient interest, I could organize a run.

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Try Cinemag, perhaps? The CM-13107 is a 10k:600/300/150/32, and the mixed stack was very affordable. The primary impedance is a bit high, but they might another standard design that would be a better match. I know they mix their stack differently than Jack does, so it might make sense to derate the power handling slightly.

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I had to the chance to hear this (and its larger cousin) recently and Doug's work continues to impress. 

 

Yep - I guess you guys aren't too far apart, now.

 

As always, Doug is pushing the boundaries of design thought with regard to headphone amplifiers.  Very impressive.

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