RE: Do you run three cabs?

Posted by TubeAcolyte (D) on January 31, 2015 at 06:50:53

In Reply to: RE: Do you run three cabs? posted by Alpha Al on January 31, 2015 at 04:42:04:

I wouldn't dummy plug anything because it doesn't count as an actual resistive load. Koerner himself said that accidentally pulling a load during operation would cause serious arcing and the possible destruction of the amp and the speakers. That implies an important electrical relationship between the load and the tube (which is why I thought it might act as a feedback of some sort).

Second, switching tubes gives me the hibbies as well. It wouldn't be the end of the amp, but the amp has three bias pots to consider - one for AC hum, a global bias feed to the phase-splitting transformer, and then another bias feed after the transformer to balance your left and right side. So, let's just say I wouldn't want to make any mistakes or assumptions about the effect of pulling tubes on bias, or mixing a side by accident and getting weird output or oscillations.

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May your tubes be lively, warm, and long-lasting. Holy be thy heater.

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Follow Ups Full Thread

Topic - Gold Lion KT88 - Abuse, Ratings and Experience - TubeAcolyte 05:34:23 01/30/15 (17)

Not PS400 but PS300 - Chip647 07:51:59 01/31/15 (0)

I posted the question on Fender Amp board. - FenderLover 18:36:57 01/30/15 (1)

GL KT-88 - FenderLover 16:14:34 01/31/15 (0)

RE: Gold Lion KT88 - Abuse, Ratings and Experience - sony6060 15:48:16 01/30/15 (0)

Do you run three cabs? - Alpha Al 13:28:38 01/30/15 (3)

RE: Do you run three cabs? - TubeAcolyte 13:33:37 01/30/15 (2)

RE: Do you run three cabs? - Alpha Al 04:42:04 01/31/15 (1)

RE: Do you run three cabs? - TubeAcolyte 06:50:53 01/31/15 (0)

Are they durable you ask? - Michael Samra 08:50:31 01/30/15 (1)

RE: Are they durable you ask? - TubeAcolyte 10:50:59 01/30/15 (0)

Do you have a 400PS? - FenderLover 07:11:22 01/30/15 (6)

RE: Do you have a 400PS? - TubeAcolyte 07:49:39 01/30/15 (5)

Very nice! - FenderLover 18:00:57 01/30/15 (4)

RE: Very nice! - TubeAcolyte 19:37:35 01/30/15 (3)

You have the original folded cabs, too? - FenderLover 16:16:55 01/31/15 (2)

RE: You have the original folded cabs, too? - TubeAcolyte 13:32:12 02/01/15 (1)

EV versus JBL - FenderLover 07:52:56 02/02/15 (0)

Follow Ups

RE: Do you run three cabs? - TubeAcolyte 06:50:53 01/31/15 (0)

RE: Do you run three cabs?

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