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Tube gear is just like a razor

Posted on April 19, 2021 at 11:00:32

Posts: 13512
Location: No. California
Joined: December 26, 2003
You still need quality blades to get a good shave.

I finally stopped buying Sovteks, JJ's and EH 6922 tubes.

I have a second set of Gold Lion 6922's to be delivered tomorrow for my preamp.

I wonder if power amplifier driver tubes make much of a difference? Mine uses a pair of 12AU7.


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RE: Tube gear is just like a razor, posted on April 19, 2021 at 21:38:54

Posts: 8670
Location: Texas
Joined: September 24, 2006
This is why I don't put 6922s into the gear I build. It's easy to do without if you're designing from scratch. 12AU7s are not very linear in grounded cathode service. I only use them for cathodyne phase inverters or cathode followers.

Buy Chinese. Bury freedom.


RE: Tube gear is just like a razor, posted on April 20, 2021 at 07:20:23

Posts: 823
Location: SE MI
Joined: August 8, 2014
If you are 'stuck' with a 12AU7 as a preamp tube, use Brimar 13D5 long plate or CBS/Hytron 5814.


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