Can this be converted to 2A3

glynnw · 2071

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Offline glynnw

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on: September 07, 2016, 10:38:44 AM
Just as an idle question, can the BeePre be converted to run on 2A3 tubes like my Paramounts were set up?

PC, J River software, opticaRendu, Schitt Ygg DAC,Tortuga Pre, Torta Radu tube buffer, Linear Tube Audio ZOTL10, Spatial Audio X5w/pair of GR Research dual 12" open baffle servo subwoofers tamed by DSpeaker Dual-Core DSP , Audience AU24 SE  spkr cable, handmade silver interconnects,


Offline Chris65

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Reply #1 on: September 07, 2016, 11:39:06 AM
I guess you know the 6A3 drops right into the BeePre, essentially the same as the 2A3 but with a 6V filament.



Offline glynnw

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Reply #2 on: September 07, 2016, 12:01:18 PM
Heck, Chris, I didn't know there was such a thing as a 6A3 tube.  The reason I ask is the 2A3 has long been my favorite tube, but I converted to 300B for more power.  Now doing the unforgivable and using a PP amp with 15 mighty watts.  There is a lot of talk on AudioCircle about a new preamp from another mftr using 2A3 tubes, but it is terribly spendy.  If I do decide to go that way, this is in my meager budget.  Thanks

PC, J River software, opticaRendu, Schitt Ygg DAC,Tortuga Pre, Torta Radu tube buffer, Linear Tube Audio ZOTL10, Spatial Audio X5w/pair of GR Research dual 12" open baffle servo subwoofers tamed by DSpeaker Dual-Core DSP , Audience AU24 SE  spkr cable, handmade silver interconnects,


Offline johnsonad

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Reply #3 on: September 07, 2016, 02:17:48 PM
Read the old threads from Xavier and I. We both used 6A3 or variants (8 pin vs 4 pin) in our BeePre's.

Aaron Johnson


Offline Paul Birkeland

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Reply #4 on: September 09, 2016, 05:59:38 AM
The BeePre cannot be converted to use 2A3 tubes, as they require too much filament current compared to the 300B or 6A3.

-PB

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man


Offline Analogluvr

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Reply #5 on: October 06, 2016, 02:50:09 PM
I only use 6A3 now. Got an nos matched pair of tungsol' sand I love them. Much less of a problem with microphonics.