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Mullard CV4024 / 12AT7 Kevin's Stash / No Cryo Reviews

4.8 Rating 12 Reviews
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Phone:

909.931.9686

Email:

joel.m@upscaleaudio.com

Location:

2058 Wright Avenue,
2058 Wright Avenue
California
91750

Charles Woodley
Verified Reviewer
One of the tubes experienced a filament flare-up after 10 hours of use. While I was advised by company staff this wasn't an issue, I didn't like the look of it as none of my other tubes ever did this. I also noticed that my power meters fluctuated at start up using these tubes (which didn't seem right). I replaced them with a matched set of Mullard-made 6060 blackplate 12AT7 type tubes designed for Zaerix.
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Posted 1 week ago
Kevin Claffey
Verified Reviewer
Great addition to my McIntosh MHA 200
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Posted 1 week ago
Matt Mulacek
Verified Reviewer
As always, excellent product from Upscale Audio!
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Posted 2 weeks ago
Matt Mulacek
Verified Reviewer
I bought these as a back up pair to my original pair of cv4024. Not Sure how long these will be available so I stocked up. Great tubes
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Posted 3 weeks ago
Cody Grayland
Verified Reviewer
These NOS Mullard CV4024 sing within my EL-34/12AT7 voiced amp. Thanks Upscale.
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Posted 1 year ago
Author didn't leave any comments.
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Posted 3 years ago
item exactly as described...good communication...prompt & professional shipping, safely packaged...couldn't ask for better...thanks, Kevin...woll do again...John
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Posted 3 years ago
Work very well in a Carver 275 as support tubes to an Amperex 12AX7 input tube. Quiet, a bit warmer and richer sounding than the Mullard 6201. Depending on your application both are excellent tubes.
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Posted 4 years ago