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RE: Russian Army 6P3S-E tubes sub for 6L6GC

I can speak directly to that. I have recently re-tubed several of my bud's Fender amps with the early 70's 6P3S-Es, the ones with the coin base. They sounded MUCH better than any of the relatively recent production Sovtech and Chinese tubes they had in them (Groove Tubes, Ruby Tubes ect.)

I was concerned about the rated 250V anode voltage limit on the tubes. I know the Russians de-rate tubes a lot because they use them in Migs and other military equipment at high Gs and such. Another poster (forget who) posted that he had been using them for years in Fender amps with no problems, and that he's seen where they were successfully tested up to 600V on the anodes.

Too early to tell how they hold up, but so far (several months) so good. Hard to say how they'd sound in the audio world, read several 2nd hand reports that they sound very good in audio as well. With the guitars they had way more harmonic richness and sustain, sounded much smoother. Everyone agreed they were a big upgrade from the recent production "usual suspects", the guitar guys were grooving on the "tone"!;-) Definitely worth the 8 dollars including shipping that is a common asking price on ebay.

twystd


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