Mesa 12AX7 preamp tube vs. Generic tibe

Discussion for the new Mark V

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rkaczano
Mark II
Posts: 56
Joined: Thu Jan 17, 2013 12:26 pm

Mesa 12AX7 preamp tube vs. Generic tibe

Post by rkaczano » Wed May 11, 2022 4:08 pm

How picky is a Mark V with its preamp tubes? Do I need a Mesa Mesa branded 12AX7 for the V1 slot or can I use any type of 12AX7?

Thanks

wildschwein
Mark III
Posts: 157
Joined: Sun Aug 07, 2011 12:17 am
Location: Alkimos, Western Australia

Re: Mesa 12AX7 preamp tube vs. Generic tibe

Post by wildschwein » Wed May 11, 2022 11:45 pm

You can put any 12ax7 in there. How it will sound and last will depend on the tube but it will work.

rkaczano
Mark II
Posts: 56
Joined: Thu Jan 17, 2013 12:26 pm

Re: Mesa 12AX7 preamp tube vs. Generic tibe

Post by rkaczano » Thu May 12, 2022 8:58 am

Ok thanks - do you know what would be a good replacement for a Mesa branded 12AX7? I know Mesa does not actually make their tubes but I cannot find any Mesa branded ones at the moment due to the tube shortage.

Thanks again.

KRichter
Mark I
Posts: 35
Joined: Thu Dec 30, 2021 9:08 am

Re: Mesa 12AX7 preamp tube vs. Generic tibe

Post by KRichter » Thu May 12, 2022 9:33 am

rkaczano wrote:
Thu May 12, 2022 8:58 am
Ok thanks - do you know what would be a good replacement for a Mesa branded 12AX7? I know Mesa does not actually make their tubes but I cannot find any Mesa branded ones at the moment due to the tube shortage.

Thanks again.
I've used Mesa, JJ's, Electro Harmonics, Mullards, all with good results.
AKA "Salty Cracker"

wildschwein
Mark III
Posts: 157
Joined: Sun Aug 07, 2011 12:17 am
Location: Alkimos, Western Australia

Re: Mesa 12AX7 preamp tube vs. Generic tibe

Post by wildschwein » Sat May 14, 2022 8:32 am

Yeah JJs are readily available. Eurotubes does full re-tube kits and the power tubes are in the right bias range for Mesa amps:
https://www.eurotubes.com/store/pc/Retu ... sa-c10.htm

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