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Message started by woof on 04/19/08 at 17:13:15

Title: SV83's......
Post by woof on 04/19/08 at 17:13:15

Noticed that New Sensor still has SV83's listed and vaguely recall there might have been a bit of a odor about them. Is anyone making a modern day equivalent or is there just one AUTHENTIC SV83 and it's out of production?

(I did a search and didn't come up with much here.)

Title: Re: SV83's......
Post by Rob on 04/20/08 at 11:37:49

To my knowledge, the Svetlana SV83 is the only "authentic" production SV83(and labeled as such). There are plenty of sources for them, but they aren't always good.

When you say the New Sensor variations have "a bit of an odor about hem" are you saying that litterally, or as in 'they stink' (quality wise?)

I have a fairly big lot of 6P15P-EV/6N15N-EVs and have had a good number cryo treated. They are outstanding and have gotten very good feedback from some folks here.

I have a few remainng (see classifieds)

Title: Re: SV83's......
Post by Steve Deckert on 04/20/08 at 23:01:14

There are 3 grades of this tube. All are N.O.S. Russian tubes that were made until 1986. When I started manufacturing the Zen amps there were confirmed at least 10,000 of these tubes available. The highest grade is a mil spec tube with higher impact ratings and longer life. The number of these tubes remains unknown. They were never branded with the Svetlana brand. The original Svetlana branded tubes are mostly owned by our customers leaving about 2000 of the original 10,000 still floating around. Since New Sensor purchased the Svetlana name a few years back, the consistency of the original batch was lost so I stopped purchasing them.

We only buy the top grade mil spec 6P15P-EV aka 6n15n-EB tubes directly from Russia and Europe for all of our production amplifiers that use that tube.

Steve