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Audio > Audio Tubes > Re: Cathode Bia...
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Re: Cathode Bias PushPull

by Robert Casey <wa2ise@[EMAIL PROTECTED] > Apr 22, 2008 at 11:42 PM

> 
> Rk = Vbias/(2 x idle)
> 
> Where Vbias is the desired bias voltage and idle is the per tube idle
> current at that bias voltage, with the 2x because there are two tubes.
> 

A problem is that if one of the pair of the tubes hogs most of the 
current, which can lead to red plates.




 38 Posts in Topic:
Cathode Bias PushPull
 "RealInfo" <  2008-04-23 00:24:43 
Re: Cathode Bias PushPull
 tubegarden <tubegarden  2008-04-22 19:57:53 
Re: Cathode Bias PushPull
 flipper <flipper@[EMAI  2008-04-22 22:32:06 
Re: Cathode Bias PushPull
 Robert Casey <wa2ise@[  2008-04-22 23:42:01 
Re: Cathode Bias PushPull
 flipper <flipper@[EMAI  2008-04-23 02:56:25 
Re: Cathode Bias PushPull
 Eeyore <rabbitsfriends  2008-04-23 09:59:56 
Re: Cathode Bias PushPull
 flipper <flipper@[EMAI  2008-04-23 05:27:56 
Re: Cathode Bias PushPull
 Eeyore <rabbitsfriends  2008-04-23 12:10:45 
Re: Cathode Bias PushPull
 flipper <flipper@[EMAI  2008-04-23 08:14:34 
Re: Cathode Bias PushPull
 Restless Fingers Syndrome  2008-04-23 21:44:59 
Re: Cathode Bias PushPull
 flipper <flipper@[EMAI  2008-04-24 01:24:47 
Re: Cathode Bias PushPull
 "Phil Allison"   2008-04-23 21:18:44 
Re: Cathode Bias PushPull
 Eeyore <rabbitsfriends  2008-04-23 13:10:18 
Re: Cathode Bias PushPull
 Patrick Turner <info@[  2008-04-23 13:05:31 
Re: Cathode Bias PushPull
 Patrick Turner <info@[  2008-04-23 11:50:31 
Re: Cathode Bias PushPull
 "Phil Allison"   2008-04-23 21:12:59 
Re: Cathode Bias PushPull
 John Byrns <byrnsj@[EM  2008-04-23 08:13:21 
Re: Cathode Bias PushPull
 "Doug Bannard"   2008-04-23 09:43:47 
Re: Cathode Bias PushPull
 John Byrns <byrnsj@[EM  2008-04-23 08:55:14 
Re: Cathode Bias PushPull
 Eeyore <rabbitsfriends  2008-04-23 15:18:15 
Re: Cathode Bias PushPull
 "Iain Churches"  2008-04-23 21:54:33 
Re: Cathode Bias PushPull
 Eeyore <rabbitsfriends  2008-04-23 15:15:56 
Re: Cathode Bias PushPull
 John Byrns <byrnsj@[EM  2008-04-23 11:21:22 
Re: Cathode Bias PushPull
 Eeyore <rabbitsfriends  2008-04-23 17:28:24 
Re: Cathode Bias PushPull
 flipper <flipper@[EMAI  2008-04-23 17:39:17 
Re: Cathode Bias PushPull
 "Phil Allison"   2008-04-24 00:36:55 
Re: Cathode Bias PushPull
 John Byrns <byrnsj@[EM  2008-04-23 11:24:20 
Re: Cathode Bias PushPull
 flipper <flipper@[EMAI  2008-04-23 08:30:39 
Re: Cathode Bias PushPull
 "Phil Allison"   2008-04-24 00:47:20 
Re: Cathode Bias PushPull
 flipper <flipper@[EMAI  2008-04-23 17:04:26 
TOTAL WANKER'S FANTASY
 "Phil Allison"   2008-04-24 09:27:57 
Re: TOTAL WANKER'S FANTASY
 flipper <flipper@[EMAI  2008-04-23 19:50:09 
Re: TOTAL WANKER'S FANTASY
 "Phil Allison"   2008-04-24 11:15:34 
Re: TOTAL WANKER'S FANTASY
 flipper <flipper@[EMAI  2008-04-23 21:36:38 
Re: TOTAL WANKER'S FANTASY
 Jon Yaeger <jono_1@[EM  2008-04-23 23:09:53 
Re: Cathode Bias PushPull
 Patrick Turner <info@[  2008-04-24 07:49:18 
Re: Cathode Bias PushPull
 Andre Jute <fiultra1@[  2008-04-23 07:26:53 
Re: Cathode Bias PushPull
 Patrick Turner <info@[  2008-04-24 07:38:00 

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tan13V112 Wed Jul 23 21:47:27 CDT 2008.