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In Reply to: RE: OK I gotta ask. Why no more 6p3se / 6n3ce for sale other than on Ebay? posted by artemus on May 11, 2017 at 11:52:06
Lots of hearsay going on here....
The 6P3S is only a rough lower voltage equivalent of a 6L6, more like an updated 6V6.
6P3S-E is not really the same valve, idem the latest 5881 stuff from saratov.
All a bit comparing apples to oranges.
"According to them, the post Gorby era tubes were inferior. They said that during the glasnost era that tight military control was shifted to the civilian sector, ..They also claimed that tubes during that time were considered old technology, and they closed and sold for scrap...."
"Many (most?) of the 1970s and earlier production tubes were not made at Saratov. They were a slightly different tube. Were the tubes you compared Saratov made?
The Foton and other 60s-70s vintage tubes are getting hard to find and pricey. ......
I'm not saying the Fotons weren't superior, but the Saratov made tubes are the tubes most people have been speaking quite highly of.
And the current production is Saratov made as well."
Heard them both, I believe mine (if memory serves many years ago) were Saratovs (old school diamond logo, not unhappy robot) current production tubes suck in comparison. Since a lot of time has passed. I could be wrong about the logo, but I'll stand by the superiority of 70"s production tubes vs current. Current production might sound great, however IMO and others, in comparison there was none.
I am regularly in RF.
If you read Russian, you will know there are literally 1000s of those NOS valves people are desperate to sell off for peanuts to cover for the calmitous fall in value of the rouble/hryvna.
Usually they are making a mark up of easily 200-1000% on their buying prices.
I can literally walk down the road and buy one off the shelf in most RF provincial cities... for about 150 rouble (about 2-2Euro50).
You must also be aware Saratov was NOT the only factory making this very common valve.
There were many factories in different places of the USSR, including Ukraine, where it appears there are still large numbers packed in their crates/boxes of 100 off.
I heard many of the production were quite gassy, and of course this is a one of a number of the *L6 clones made in the USSR, the others based on it being of course the USSR 807 - and sweep tubes 6P7S - 6BG6.
If you have any doubts about modern Saratov reflector made *L6 derivatives then just fit the octal version with top cap.
Klaus has as usual done some homework on it.
It's a no brainer and stands much higher Va!
Thanks for your input, I value the audiophiles from the east to fill in the blanks to us in the west. The whole Soviet tube lore is murky to us, due to a lack of inside info. No doubt that was intended by the Soviet leadership during the paranoid (east and west) cold war.
Thanks for the tip, but I'm a tried and true member of the triode mafia, and have little use for pentodes unless run in triode mode. That limits my knowledge and use of Soviet era pentodes and tetrodes to triode curves that I can find on the internet, and only the linear ones are of interest.
I built a parafeed SET, using the 6S36P with the topcap, in triode mode. A wonderful sounding tube at about 20 watts dissipation (rated ~ 15). The surprising thing is we got a true 8 watts in class A1. My friend thought it might be due to the 48h plate choke I used with the high 20 watt dissipation.
Please post more on your knowledge of the Soviet era tubes, as I feel SOME are the equal, if not SUPERIOR, to western tubes. Others have no western equivalent, and all are economical in comparison to western tubes. The markup of the ebay sellers are irrelevant to me at a few dollars a tube. I don't use any western tubes in my projects any more, once I've learned of the Soviet era tubes.
I'm not an "audiophile". Its the last label I want, because most "hi end" stuff sounds dreadful.
I work on the recording end, which is the content creation end, which you eventually may end up listening to.
The soviets got given technology on lend lease during the war.
I'm not Russian but I do mix and match stuff which before the internet was impossible or difficult to do.
In my opinion nothing at all to do with "cold war", as plenty of stuff before the USSR breakup was already being resold by people like Zaerix etc.
There are some very good bits of Russian technology, particularly the stuff they continued developing when things had died in the west,- stuff like Submins from Siberia, Svetlana SPB, military transmitter valves, but not much frame grid I believe because they didn't develop this, nor the USA compactrons which were brilliant.
As a result, the best high gain frame grid stuff, even sweep tubes were made in the USA like Sylvania, Westinghouse, RCA.
Lots of that stuff is unbeatable, so sticking to one rigid idea is bound to be swept away by realising TV valves usually ended up being better, more modern, cheaper and much more reliable than anything being squeezed into a small bottle with poor quality control, uninterested staff, and indifferent aims.
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