RE: Nature Sound Permalloy OPT

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

In Reply to: Nature Sound Permalloy OPT posted by Wojciech on May 31, 2014 at 08:21:00:

The Nature Sound SE OPTs were permalloy transformers designed for 8 Watts and max unbalanced DC of approx 75 mA.
The more common NS-30 had a single 3k primary, while the NS-70 had multiple primary taps to allow for 2.5k, 3.5k, 5k and 7k loads. I believe they were essentially identical except for the more flexible options on the NS-70's primary.
I have used their permalloy chokes, but have never used their OPTs. Hope this helps.

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Follow Ups Full Thread

Topic - Nature Sound Permalloy OPT - Wojciech 08:21:00 05/31/14 (8)

Are these still made? nt - Frihed89 00:23:02 06/8/14 (1)

RE: Are these still made? nt - Wojciech 04:45:46 06/8/14 (0)

RE: Nature Sound Permalloy OPT - Wojciech 08:59:28 06/3/14 (4)

RE: Nature Sound Permalloy OPT - Jim Dowdy 09:09:19 06/3/14 (3)

RE: Nature Sound Permalloy OPT - Wojciech 09:21:50 06/3/14 (2)

VT52 - Jim Dowdy 09:47:32 06/3/14 (1)

RE: VT52 - Paul Joppa 20:42:32 06/3/14 (0)

RE: Nature Sound Permalloy OPT - Jim Dowdy 06/3/1408:47:14 06/3/14 (0)

Follow Ups

RE: Nature Sound Permalloy OPT - Jim Dowdy 06/3/1408:47:14 06/3/14 (0)

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