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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: RE: Riddle me this posted by Triode_Kingdom on July 10, 2021 at 10:45:02:
I posted the Dynaco KT-66 note more for my own clarification rather than to correct you.
I did a search for 6P3S-E and read some of your previous exchanges with Mike Samra regarding that tube. I copied and pasted one of his replies to you below.
"I have made many measurements but mostly in 6L6 and KT66 amps. Most of the disputed argument I presented in past posts was to reiterate the fact that these tubes can handle much more than 350v rating claimed in the Data by the Russian military"
I know I haven't put 50 to 100 hours on those tubes in my ST-70, which puts about 410 V on the plates, so I can't give you any longevity results. Probably more like ten hours, enough to determine that I liked them better than EL-34 based tubes, but not enough to keep the amp in my system any longer than that.
Mike was sometimes casual regarding voltage specs. I remember him once good-naturedly telling me I had no balls, since I expressed concern about running a 200 volt rated Russian Teflon FT-3 cap in excess of that. Mike swore they were good to 600 V (or more), but I admit that I usually try and keep within set guidelines. Losing a $10 (or whatever the 6P3S-Es went for) tube was one thing, but creating a fire and / or shock hazard by running a cap 300% over rated voltage was something I admit I wasn't comfortable with.
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Follow Ups
- RE: Riddle me this - 1973shovel 08:56:52 07/11/21 (0)
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