Bottlehead Forum

Bottlehead Kits => S.E.X. Kit => Topic started by: Cary on November 28, 2014, 10:55:21 AM

Title: 6SN7 for Sex Amp
Post by: Cary on November 28, 2014, 10:55:21 AM

I just want to be sure is it safe to use the 6SN7 in the SEX 2.0 and 2.1 without changing anything?

Thanks!

Cary

Title: Re: 6SN7 for Sex Amp
Post by: Paul Birkeland on November 28, 2014, 10:58:14 AM

You'll need 6SN7GTB's, and to be OK with them not providing their otherwise expected lifetime of service.

Title: Re: 6SN7 for Sex Amp
Post by: johnsonad on November 28, 2014, 02:00:46 PM

They need to be GTB tubes though as they are rated for 400v.

Title: Re: 6SN7 for Sex Amp
Post by: Paul Joppa on November 30, 2014, 01:39:09 PM

Quote from: johnsonad on November 28, 2014, 02:00:46 PM

They need to be GTB tubes though as they are rated for 400v.

And they can take 5 watts on one plate - original 6SN7s are rated 2.5 watts maximum.

Title: Re: 6SN7 for Sex Amp
Post by: boulos on December 03, 2014, 02:30:30 AM

I've tried a few well used 6SN7GTB tubes in the SEX 2.1.  As cautioned before, the amp runs the tubes harder than usual for a 6SN7.  It has revealed a few tubes to be noisy (or perhaps it contributed to the issue).