Should I re-bias Cary SLI-80 when replacing rectifier tubes and/or

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Posted by Terry P on July 24, 2015 at 14:49:57

the pre-driver (6SN7) tubes? The Cary manual and website instructions say to adjust bias when replacing power tubes. An on-line search showed that a few other manufacturers recommend to also re-bias their amplifiers when replacing rectifier tubes. What do my fellow inmates recommend?

I'm also interested in your opinions regarding the Cary instructions to unplug all speaker and interconnect cables from the amp prior to adjusting the bias.

A very experienced dealer recommends in his on-line instructions for setting tube bias that speaker cables remain connected. He has carried Cary equipment and other manufacturers. I don't want or mean to start a conflict thing here, I only want to ensure that I don't shorten the life of my equipment and get the most accurate bias setting for my amp.

I've only had the Cary for a year, so I'm just starting to do some tube rolling. Thanks!

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Topic - Should I re-bias Cary SLI-80 when replacing rectifier tubes and/or - Terry P 14:49:57 07/24/15 (16)

I sold a jillion of those amps - here's a couple tips - Kevin Deal 11:48:54 07/26/15 (1)

Thanks Kevin! - Terry P 13:57:48 07/26/15 (0)

Something is screwy here - Frihed89 00:43:00 07/25/15 (7)

RE: Something is screwy here - Blackdog 04:53:52 07/25/15 (6)

Agreed - mbnx01 09:34:34 07/25/15 (0)

Humm. Thanks - Frihed89 08:43:32 07/25/15 (4)

RE: Humm. Thanks - Blackdog 16:39:56 07/25/15 (3)

RE: Humm. Thanks - Frihed89 17:30:51 07/25/15 (2)

RE: Humm. Thanks - Blackdog 18:54:23 07/25/15 (1)

RE: Humm. Thanks - Frihed89 04:36:51 07/26/15 (0)

RE: Should I re-bias Cary SLI-80 when replacing rectifier tubes and/or - Blackdog 17:34:25 07/24/15 (3)

RE: Should I re-bias Cary SLI-80 when replacing rectifier tubes and/or - Terry P 12:20:51 07/25/15 (2)

Just turn it off and change the tubes - Jack G 14:46:57 07/25/15 (1)

RE: Just turn it off and change the tubes - Terry P 11:50:46 07/26/15 (0)

RE: Should I re-bias Cary SLI-80 when replacing rectifier tubes and/or - airtime 16:33:32 07/24/15 (1)

RE: Should I re-bias Cary SLI-80 when replacing rectifier tubes and/or - Terry P 12:28:36 07/25/15 (0)

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