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Tubelab Discussion and support of Tubelab products, prototypes and experiments

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Old 14th May 2013, 02:00 PM   #11
pbkrag is offline pbkrag  United States
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Join Date: Mar 2012
Location: Easton, PA
I've employed the switch rknize has posted about. It's switches between 6 different bias resistors. And I roll 3 different rectifiers. jj 5ar4/gz34. an old RCA 5u4gb and an old RCA 5y3gt. Between the bias selector and the different rectifiers I can pretty easily adjust to the proper current. for the 350b on my SSE the 5y3 with 430 ohm cathode bias resistor works well.
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Old 19th May 2013, 06:36 PM   #12
corporal clegg is offline corporal clegg  United States
diyAudio Member
Join Date: Aug 2012
Location: Kenosha, WI
Originally Posted by beeah View Post
The SED EL34 is a very fine tube indeed.
I've also read on numerous forums that the "SED/winged =C=" EL34 is the best...I have a Velleman K4040 PP amp that uses 8 EL34's, but I have Svetlana's in there now. Someday I might pick up some =C=, but I'm gonna pay dearly for them(they ain't cheap!!!)
Linn LP12 | Origin Live Silver Tonearm | Ortofon X5-MC | Velleman K8021 Pre | Velleman K4040 | Decware ZKIT1 | FISHER FM-100-C | Fisher 500C | Altec Lansing 874A Segovia | Marantz Imperial 6-G | Decware Mini Torii II :P

Last edited by corporal clegg; 19th May 2013 at 06:41 PM. Reason: added SED
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Old 29th September 2013, 12:44 PM   #13
mudchute is offline mudchute  United Kingdom
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Join Date: Jan 2012
I've settled on the Electro Harmonix KT88's. The best of everything. I've not thought about changing tubes since.
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