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AUDIO FORUMS >> Replacement Tubes >> 6N1P-EV-OC
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Message started by ZENCDUSER on 09/24/12 at 03:07:32

Title: 6N1P-EV-OC
Post by ZENCDUSER on 09/24/12 at 03:07:32

Anyone have any experience with the 6N1P-EV-OC (Special OC version, Aero and Space)? Any audio difference from the "standard" long-life (-EV version) developed for military equipment? An EBay seller is offering these.

Title: Re: 6N1P-EV-OC
Post by Chas on 09/24/12 at 05:59:01

Never seen "OC" before but have seen some pretty cryptic lettering using the same black typeface added to these tubes.

If they were really for aerospace, they might be a special culling of very low microphonic tubes which should make them sound better and without using tube dampers, but who knows. Might also be extra strong, high output, another desireable characteristic.

If you get some (they're cheap enough to be sure), please report back on your findings. Also, all of these tubes tend to sound better and last longer with cryo treatment.

Put another way though, I'd bet they sound at least as good as the EV issue. Hopefully, even better.

Title: Re: 6N1P-EV-OC
Post by ZENCDUSER on 09/24/12 at 06:47:59

Thanks Chas! Here's the link to them:

http://www.ebay.com/itm/2-x-6N1P-EV-OC-E88CC-6DJ8-6922-Voskhod-1980s-NIB-VERY-RARE-Space-grade-/280895147838?pt=Vintage_Electronics_R2&hash=item4166a7cf3e

Title: Re: 6N1P-EV-OC
Post by deucekazoo on 10/05/12 at 15:45:17

Zencduser,
Did you ever order these? What do you think?
Thanks,
John

Title: Re: 6N1P-EV-OC
Post by Lon on 10/05/12 at 16:18:46

These look an awful lot like the supercryo'd 6N1Ps that I love to use from cryoset.com

http://www.cryoset.com/catalog/product_info.php?cPath=81&products_id=263&osCsid=17fad072dad1652bf44f98936f3fee22

Title: Re: 6N1P-EV-OC
Post by alvinkong2 on 08/22/23 at 04:33:33

I have recently ordered the 6N1P-EV "OC" version from a Ukrainian store which was closing down due to war. The seller said the "OC" version was prohibited from export as it contains gold. This tube sounds more than excellent as compared to the overpriced Telefunken E188CC. While the Telefunken is "low noise", the "OC" is ZERO noise. Secondly, this "OC" version generates great sound stage. It is currently very very hard to find this "OC" version in the market.