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As far as I know 7868's were never made overseas but just wanted confirmation. I am considering some re-branded ones....Ultrex. Seems to me they would have to of been made by RCA, Sylvania, or GE. Am I thinking right or could they be something altogether different.
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I woulda rather had Sylvanias or RCA's but you gotta get what you can afford. I figure hundred bucks for a quad ain't too bad. Interestingly enough they appear to be NASA NOS. Wonder what they used em for? Thanks again fellow inmates. Wouldn't want no jap tubes in my vintage US gear. LOL.
7591' and 7868's were also produced in India, as well as a lot of other tubes ( 12a..'s, 6L6gc, 6V6, ect ). India production ran well into the late 1980's, and a lot of relabelling occurred. Some are marked made in India, some are not. The 12ax7's I have that were made here in India are actually quite good sound, as are the 7868 in my Fisher 400 I recently retubed.
Hi,Fun...
Never seen a "made in India" valve, but would lowve to have a few.
Is it possible to my hands on a few (new or used doesn't matter).
Could you give a helping hand?
[Field for mailaddress is filled in if you may :-) ]
In an earlier post I was asking the same and I was told of another AA mate that he had a NOS pair of 7868's with Tung-Sol all over them. I am more curios as to why there are the two different shapes, one with pimple on top and one with it on the bottom. Even if the valve is turned upside down the shape is different. I came to the conclusion that therer were two different manufacturers of this valve. I am in the middle of buildind a stereo amp useing 7868's in PP so I will post results as soon as I have had a good listen to it.
OLLY
I'm pretty sure some were made in Japan. The Japanese made
7591, so making 7868 wouldn't have been much of a stretch,
the only difference is the base.
Russ,Memory serves me, the 7868 were designed by RCA, then made by RCA & Sylvania and GE (under contract).
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