20B SET: look ma, no driver tubes

SET Asylum

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

I have never seen this tube before. Each channel has an input transformer feeding an interstage transformer directly coupled to the 20B. No driver tube. Apparantly, Tron Electric uses a similar typology in its Voyager amp. I'm sure neither the Tube Lab or the Tron version is cheap. The former uses all EML tubes (both the power tube and the rectifier) + Hashimoto interstage and output transformer and Lundahl input transformers and n one of that is low cost.

Anyone ever build/hear such an amp?

http://www.tubeaudiolab.com/id148.html (Open in New Window)

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K&K Audio / Lundahl Transformers

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Topic - 20B SET: look ma, no driver tubes - Frihed89 14:02:28 02/11/12 (9)

Gordon Rankin had one in his Wavelength Audio... - RC Daniel 00:40:26 02/16/12 (2)

I have a pair of Mercurys - Ed Sawyer 12:19:17 02/17/12 (0)

Mercury amps - Gordon Rankin 05:19:48 02/16/12 (0)

RE: 20B SET: look ma, no driver tubes - Unholy Fool 05:06:37 02/12/12 (0)

RE: 20B SET: look ma, no driver tubes - Donald North 21:01:09 02/11/12 (4)

RE: 20B SET: look ma, no driver tubes - Tre' 22:06:03 02/12/12 (3)

RE: 20B SET: look ma, no driver tubes - Paul Joppa 08:58:39 02/14/12 (2)

801A here - gluca 10:22:19 02/14/12 (1)

Yep, Good Ole Brian Clarke... - RC Daniel 00:42:40 02/16/12 (0)

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