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Siemens E83CC Triple Mica
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Category Archives: 12ax7/ECC83
The Evolution of Precision: Frame vs. Traditional Grid
In the high-fidelity world of vacuum tube amplifiers, enthusiasts often seek out specific tubes for their perceived sonic characteristics and superior construction. One key differentiator in many legendary vintage tubes is the implementation of a frame grid instead of the standard, traditionally wound grid.
Continue readingAmperex 12ax7 Angled Foil getter
A brief history of 12ax7 tubes
The 12AX7 is arguably the most iconic and widely utilized audio vacuum tube in history. Its enduring popularity stems from its ubiquitous presence in high-fidelity (Hi-Fi) home audio and, most notably, guitar amplifiers. In the latter, these tubes are often pushed to their operational limits, leading to a faster replacement cycle compared to other applications..
Mullard 10M 12ax7 Short Plates
The Best 12ax7 tubes
Which 12ax7/5751 tube won the right to be called the best and the worst?
Updated August 5th, 2020
Continue readingSovtek 12ax7LPS Russia
“12AX7LP Sovtek tubes…very linear, has great looking curves…large full sound stage, very musical with great detail…smooth and involving” — Charles Kittleson, Editor, Vacuum Tube Valley
Continue readingGenalex B759/12ax7 Box Art
I recently came across a few boxes of Genalex B759 tubes. Unfortunately the boxes are empty, but I still wanted to share with everybody the amount of effort that went into creating these boxes and what goes inside of them including test report sheet.
Continue readingMullard – NOS vs Reissue
A great article with in-depth breakdown of internal structure of Mullard tubes NOS vs Reissue
