Audiophile Review – 6L6 Type Vacuum Tube Shootout
A re-post from Wall of Sound (review by Tim Smith) Shortly after my EL34 tube review on Wall of Sound, Jon Esau of www.thetubestore.com asked if I might be interested in reviewing a bunch of…
What Tubes Do In Most Early Fender Tweed Amps
Replacement Tube Packages are available for Early Fender Tweed tube amps. By Eric Barbour – Former Vacuum Tube Valley senior editor The first preamp tube (or the first 2 tubes, in 2 channel amps) provides…
Review – Mullard CV4004 / 12AX7 Reissue
This Mullard CV4004 / 12AX7 Reissue looks nothing like Mullard tubes of old but it has a lot to offer. This is a small plate design more suited to high gain amps. Old Mullard with large…
Review – Preferred Series 7025 / 12AX7 Tube
The Preferred Series 7025 is a great sounding 12AX7 tube type that reminds me a little more of the ECC83 that EI made in the old days. That’s a pretty nice compliment. I compared this…
Review – JJ ECC83-MG / 12AX7
The JJ ECC83-MG is a fine sounding tube. I was unable to notice a loudness reduction compared to the standard JJ ECC83S tube. The tonal characteristics were easier to hear. Compared to the JJ ECC83-S…
Review – JJ ECC83-S / 12AX7
The JJ ECC83-S / 12AX7 tube sports a different plate design than found in most 12AX7’s. When you look at them you can’t help but think that they must be rugged and good for the…
Review – Sovtek 5751
The Sovtek 5751 is an affordable alternative to the 12AY7 used in original Fender tweed amps and can be subbed for a 12AT7 reverb driver tube. In this application, you will get good gain with…
Review – JAN-GE 5751
While the JAN-GE 5751 is not really a 12AX7, it shares the same pin-out arrangement and is designed for less gain in favor of lower noise and microphonics. It worked well in both test amps…
Review – Sovtek 12AX7-LPS
The Sovtek 12AX7-LPS an entirely new design from Sovtek and a great step up in sound quality. They have very large ribbed plates and great sound reproduction. I found them very smooth and well balanced in…
Review – Sovtek 12AX7-WA, 12AX7-WB
I’ve grouped the Sovtek 12AX7-WA and Sovtek 12AX7-WB together because they have essentially the same sound. The only noticeable difference between the two was a bit more gain from the WB model. These tubes are…
