• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Best New Manufacture 12AY7/6072A Tube

I recently completed a tube line preamp kit which takes eight 12AY7/6072A tubes. With NOS tubes approaching $300/ea I thought I'd compare the various models available from new manufacturers

There are gold plated and regular 12AY7s/6072As available from JJ. Electro-harmonics and others probably do too.


Any recommendations?

Thanks!
 
Wow.... 300 for one of those NOS tubes now?
Insanity!
I must be sitting on a Gold mine then, because I've got loads of spare RCA, GE, 12AY7's in my stock. 😀
They make great preamps and phase splitters driving 6BQ5's and such.
 
I recently completed a tube line preamp kit which takes eight 12AY7/6072A tubes. With NOS tubes approaching $300/ea I thought I'd compare the various models available from new manufacturers

There are gold plated and regular 12AY7s/6072As available from JJ. Electro-harmonics and others probably do too.


Any recommendations?

Thanks!
I have supplied a number of JJ 12ay7 to microphone use, with zero complains.
I know that eurotubes.com ( no affiliation) has them in US .
 
Eurotubes.com in Milwaukee Oregon sells JJ 12AY7 tubes.

They get their tubes direct from JJ in Slovakia.
Then, Eurotubes re-tests them, including noise tests.

The JJ 12AY7 have spiral filaments.

I use the JJ 12AY7 tubes as the input tube in some of my amplifiers.
They work very well in that application.
I drive right over to Eurotubes.com to pick up my JJ tubes.

But I do not have a tube phono preamp.
All my former tube phono preamps used 12AX7 tubes.