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SET Asylum Single Ended Triodes (SETs), the ultimate tube lovers dream. |
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SET Asylum Single Ended Triodes (SETs), the ultimate tube lovers dream. |
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In Reply to: RE: Looks like I was looking at the wrong one posted by rmyauck on May 30, 2012 at 08:25:26:
Randy
They all do if you want to use 50% UL since
they have 2 or 4 equal primary windings.
(1663 has 2 primaries so 5/11 pins are UL tap)
BUT the LL1620 splits one pair of primaries
with half going for the Cathode Feedback
so you are left with 2 "normal" windings
and 2 half windings so you can wire it
as 33%, 50% or 66% UL if you want.
With 2 CFB windings that can be wired
in parallel for 25% CFB
OR in series for 50% CFB.
BTW The LL1620 is not a stock item
so a special order is necesary.
And they normally are PP (see link) so a
LL1620CFB gapped for SE is even more so.
DanL
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Follow Ups
- RE: Looks like I was looking at the wrong one - danlaudionut 11:00:59 05/30/12 (1)
- A way around, for testing purposes at least - Caucasian Blackplate 09:44:39 06/14/12 (0)
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