RE: Does it have to be a GTB in your application?

Posted by ka7niq (A) on May 6, 2020 at 18:30:46

In Reply to: Does it have to be a GTB in your application? posted by amandarae on May 6, 2020 at 18:18:33:

I have a Chinese 6L6 Tube amplifier. It is a single ended 6 watts per channel amp.
My Speakers are 96 DB efficient Acoustic Research AR 1's with 500 watt Sunfire powered 15 inch woofers, so the little Chinese amp drives the shit out of them.
The original 6SN7 tubes were Russian OTK tubes, that actually sounded pretty decent.
The original Output tubes were Coke Bottle style 6P3s I think, basically 6L6GC's.
I found some old 6L6 Groove Tubes that really are 1975 Sylvania Tubes.
They were awfully bright compared to the original Coke Bottle tubes, but they seem to have settled down now.

I am unsure if the 6SL7 Tubes need to be GTB Tubes, however, I have tried to make sure that all the 6L6 tubes I have tried are 6L6GC's because this is a fixed bias amp, and I am unsure what voltage the output tubes are running at.

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Follow Ups Full Thread

Topic - RCA 6SN7GTB vs Raytheon 6SN7GTB Questions - ka7niq 11:36:51 05/06/20 (14)

That's what tube rolling is for! - vinnie2 04:26:15 05/07/20 (0)

Does it have to be a GTB in your application? - amandarae 18:18:33 05/06/20 (6)

RE: Does it have to be a GTB in your application? - Mendel 16:00:59 05/14/20 (0)

RE: Does it have to be a GTB in your application? - Akolegov88 23:46:51 05/09/20 (1)

Cool! - amandarae 17:10:28 05/14/20 (0)

RE: Does it have to be a GTB in your application? - ka7niq 18:30:46 05/06/20 (2)

RE: Does it have to be a GTB in your application? - amandarae 10:59:47 05/07/20 (1)

RE: Does it have to be a GTB in your application? - Sondek 13:58:38 05/07/20 (0)

RE: RCA 6SN7GTB vs Raytheon 6SN7GTB Questions - Sondek 17:14:40 05/06/20 (4)

RE: RCA 6SN7GTB vs Raytheon 6SN7GTB Questions - ka7niq 18:18:53 05/06/20 (3)

RE: RCA 6SN7GTB vs Raytheon 6SN7GTB Questions - Sondek 18:31:33 05/06/20 (2)

I agree with Sondek - Story 05:37:16 05/07/20 (0)

RE: RCA 6SN7GTB vs Raytheon 6SN7GTB Questions - ka7niq 04:27:23 05/07/20 (0)

RE: RCA 6SN7GTB vs Raytheon 6SN7GTB Questions - Story 13:30:58 05/06/20 (0)

Follow Ups

RE: Does it have to be a GTB in your application? - ka7niq 18:30:46 05/06/20 (2)

RE: Does it have to be a GTB in your application? - amandarae 10:59:47 05/07/20 (1)

RE: Does it have to be a GTB in your application? - Sondek 13:58:38 05/07/20 (0)

RE: Does it have to be a GTB in your application?

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