Zaerix Dark Logo image

We now own the trademark ” Zaerix”  name along with the logo.  Zaerix is an old name in the UK market. We are working to bring the brand back to…

Overrunning output valves different 6V6 types image

It is common design practice  overrunning output valves. It is done with all types . There are some amps that use EL34’s and run them way over 500 volts. This…

Don't forget the rectifier valve image

Many amps have a valve rectifier valve. Typical types are EZ81, 5Y3, GZ34/5AR4 and 5U4.  There are variations on the letters at the end of the part number but the…

Sovtek 12AX7 WA WB WC image

I thought it worth the time De-Mystifying Sovtek 12AX7 WA WB WC Variants. Why are there three versions of the Sovtek 12AX7 and what use one versus the other? One common…

Here are Things learned about Valve Amps in 2018 . They are in no particular order. Perhaps some useful info about your amp. I thought I would share them before…

Electro Harmonix 12AX7

Have you ever wondered why valves wear out or why they dont last as long as solid state stuff? Why do the big amp manufacturers give you three years warranty…

EL34 II JJ Matched Quad Image

We have now upgraded all our JJ EL34 valve kits.  Our kits now include the JJ EL34 II. The reason? The JJ standard EL34 does not sound nearly as good…

Svetlana website new image

There is a lot of confusion in the market on Svetlana and Winged C Valves.   A number of UK suppliers claiming they are selling current production Winged C valves which are…

EL34L JJ Matched Quad Pack Image

We have broadened our range of EL34’s in our store. But which one is best for my amp? This is a handy quick guide to EL34’s We now have :-…

Customer Reviews


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"Have bought from Stewart several times, he knows his stuff and while he may not always be the cheapest you’re getting the expertise and experience that few others can match. That’s so important when you’re buying valves." - N.G. 11th March 2020 - bought Tung Sol 6l6GC-STR's

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"Ggreat service, many thanks" DW bought JJ GZ34S high sag version 21st March,2020

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