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

RE: Going off the deep end

It is a "clone" of a Western Electric 133a amp made by Aldo D'Urso in Italy. It uses Langevin input transformers, Western Electric output transformers (171C) and mostly vintage parts (the power transformer is modern). The amp is also built on one large chassis instead of being monoblocs.

I run Western Electric 348a input/driver tubes (four of them) and Western Electric 349a output tubes (four of them as well).

The amp works best with a linestage with output transformers. My linestage, also built by Aldo D'Urso, has Western Electric input and output transformers.


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  • RE: Going off the deep end - Larry I 07:12:07 06/25/15 (0)

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