5Y3GT
Hi,
If you see an acid marking on the glass denoting the tube type you can be 100% it is made in the US or Canada.
Brimar was a UK manufacturer and I doubt they ever made the 5Y3GT themselves.
All USSR and European tubes carry always silk screen (at best)markings,this makes rebranding them a lot easier and you really need to be a professional to trace the origine of those tubes.
Cheers,
Hi,
If you see an acid marking on the glass denoting the tube type you can be 100% it is made in the US or Canada.
Brimar was a UK manufacturer and I doubt they ever made the 5Y3GT themselves.
All USSR and European tubes carry always silk screen (at best)markings,this makes rebranding them a lot easier and you really need to be a professional to trace the origine of those tubes.
Cheers,
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