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Darkvoice 336 + 336i Tuberolling [ tubes ] - Page 92

post #1366 of 1495
Today I tried the new Sophia Electric 6SN7 in the 336SE. The sound was very good; unfortunately, it hums/buzzes, as some tubes do in that amp, and it did not go away with break in. A pity - the Sophia Electric seems promising.

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post #1367 of 1495
Well, it's be a fun first month with the amp. I've been doing some tuberolling, with combinations of mostly RCA and Tung-Sols. Following Skylab's lead, my latest combo is a TS 5998 for power & an RCA 6F8G input on a 6SN7 adaptor. This is, unfortunately, the first tube to hum. The tube's been running for about 5 hours, and it's about half as loud as it was originally. I'll leave the amp on tonight & see what happens tomorrow. So far, I like the sound, even with the hum. Lot's of detail, nice soundstage, and some reduction in the overall brightness that the Grados tend to have.
All in all, having lots of fun.
post #1368 of 1495
One note about 6F8G's - I have found that, when used with a 5998, had the wire that runs to the grid cap can pick up a buzz. Make sure that this wire is "dressed" so that it's opposite the 5998 if at all possible.
post #1369 of 1495
Thanks for the advice. This morning, most of the hum was gone, and in turning the wire away from the power tube, the hum is now barely audible. I'm really pleased NOW!
Thanks again.
post #1370 of 1495
Skylab,

thanks for sharing that! was rather curious myself. sophiaelectric lists three different grades of their 6SN7 tubes. did you go for the top 10%?

my vintage RCA tubes are dead quiet. after spending some time with the x-can v3 i now appreciate my 336i more. their voicing is just different. am so glad i can switch between these two.
post #1371 of 1495
No, I went for the mid-grade. I don't like the whole 'grade" thing. That was not why it hummed in the 336, though - they were quiet in another amp I have.
post #1372 of 1495
Any listening impressions, shiaokun? Are you still rolling?
post #1373 of 1495
Hey guys, anyone have the Bendix 6080WB for sale? Skylab?
PM me if you do.

Thanks,
Steve.
post #1374 of 1495
I have a pair of these, but they aren't for sale
post #1375 of 1495
Quote:
Originally Posted by Skylab View Post
I have a pair of these, but they aren't for sale


How does it compared to the Tung Sol 5998 when matched with the Tung Sol brown-base up front? I'm looking for a bit more *sparkle* in the highs and overall detail.

-Steve.
post #1376 of 1495
If you want more sparkle, this it will provide. Detail...not so sure. I think the 5998 is the detail king (understanding detail is not just in the treble).
post #1377 of 1495
Quote:
Originally Posted by Skylab View Post
If you want more sparkle, this it will provide. Detail...not so sure. I think the 5998 is the detail king (understanding detail is not just in the treble).
Ahhh, now I gotta have it.
post #1378 of 1495
Quote:
Originally Posted by Skylab View Post
I have a pair of these, but they aren't for sale
That sounds like me with my pair of Sylvania VT-231 or my Sylvania "Bad Boy", and I don't even have an amp for them anymore/yet.
post #1379 of 1495
Indeed it is basically the same - I am not actually using the Bendix tubes - but I want to have a pair, in case I ever want to use them
post #1380 of 1495
Just picked up an RCA 5692 red-base to match with my Tung Sol 5998. We'll see how that goes.
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