If you find a tube with a getter in the form of a flying saucer, you can ignore any branding on the tube. It’s practically guaranteed that you have a Soviet/Russian made tube. Some of them are great, like EV/DR versions of tubes, but in the majority of cases, they don’t sound good.Continue reading
The following Special Quality types are recommended as plug-in replacements for the corresponding commercial types. Substitution in the reverse direction is not recommended.Continue reading
Brimar (BRItish Made American Range) was a part of Standard Telephones and Cables Ltd (STC) and was founded in London as International Western Electric in 1883. From 1925 to mid 1980s the company was owned by ITT of the USA.
There is very little information available on how to read Brimar tube codes, but in general, they are one of the easiest to decipher.
The code consists of multiple sections and usually look like:
4G9/980 (4th week of production in July of 1959, tube type 6060)
BTW, if Brimar labeled tube doesn’t have the date code or it has foreign stamped on the tube, it’s not produced by Brimar, but by some other manufacturer. Many Brimar labeled tubes are actually Soviet made.Continue reading
Deciphering different tube codes is hard even when they are in your own language. Deciphering Soviet tubes is even harder since the majority of information about them is in Russian.
Here is some information about common suffixes:Continue reading
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Hi there, I’ve now listened and analyzed countless 12au7’s (and it’s equivalents) and thought I’d give my opinion on my current favorites.
1st Place Tie: Mazda 6189 Silver Plates 3-Mica and 50’s Valvo Long Plate Angled Getter
*these are somewhat similar to me in that they both have soaring/sparkling top-ends and beautiful midrange. Â Both have lots of detail. Â I think Mazda has better bass and is slightly more precise, forward and transparent. Â But Mazda is also more dry. Â Valvo is sexier and easier on the ears. Â To me, the Valvos are a bit light on the bass. Â Mazdas have maybe a larger soundstage, but Valvo is deeper and more intimate. Â Tie for first. Â If someone put a gun to my head, I’d choose the Valvos.
Well, this might not be the place for the hi-fi cables reviews but since silver plays important role in tube-based gear equipment, I decided to write something about the cable that rather changed my perception of music listening.