Tung Sol 12AX7 / ECC83

A really neat added value benefit of using Tung Sol valves in your amp is their low microphonics.  During testing at the factory Tung Sol Valves are tested on a…

Sovtek EL84 Matched Pair

Here is a customer’s feedback on replacing the EL84’s with Sovtek EL84’s.  I have only removed the customer name I promised you an update on the Sovtek EL84  valves and…

JJ ECC83S value three pack

Matched Balanced Pre-Amp Valves How Are Pre-Amp Valves Matched/Balanced? You might not be aware but no valve manufacturer will test for matched balanced pre-amp valves.  So quality valve sellers invest…

Hand Matched JJ 6L6GC Pair

Here is a short video under 2 minutes on 6L6 output valves and long plate versus short plate valves. This video shows something surprising about different 6L6 valves. A quick…

Sovtek and Tung Sol valve selection

It is February 2016 and we have added more new products, as part of our commitment to our customers to greater choice and they are all in stock in the…

Why did that valve suddenly stop working? I thought it might be useful to look at what the common failures in valves are as they age. I have had a…

Sovtek EL84 Matched Quad

~EL84 ( 6BQ5) This blog article is about how to get a clean sounding amp and excellent hifi performance. The ideal valve for the hifi amp is one that has…

JJ 4 ECC83S Value Pack

I thought I would re-fresh this article because as you do listening tests you learn more and I thought you might like to here the updates .The updates are in…

Here is more on valve matching.  Most valve manufacturers will match output valves in pairs and quads with varying degrees of accuracy.  I have written about this previously here. Also…

Customer Reviews


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