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Reflektor 6N23P E88CC 6922 Preamp Tube SWGP - U.S.S.R. 1971 - OTK Stamp - NOS

Reflektor 6N23P E88CC 6922 Preamp Tube SWGP - U.S.S.R. 1971 - OTK Stamp - NOS

Regular price $42.00 USD
Regular price Sale price $42.00 USD
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Sound Sample:

1971 Vintage OTK Reflektor 6N23P (E88CC) Tube - SWGP (Single Wire Getter Post) - NOS - Very rare

Note: If your system needs a pair of 6N23P tubes, please check out our listing of a matched pair of 1972's Reflektor 6N23P tubes here:

Tube Overview

6N23P (Russian name: 6H23) tube is equivalent to European E88CC/6922 tubes. Designed to work in amplifiers and pulse generators, they are guaranteed to deliver high durability (at least 5,000 hours life), reliability and mechanical strength. This tube comes with the special OTK stamp, a proud statement of the highest standard in testing and the privilege of being selected by the Soviet's State Control Bureau (OTK) for export and government use. With premium quality in both build and sound, the Reflektor 6N23P's are the top choice among Soviet-made vintage tubes and also a great alternative to the expensive European E88CC's. 

Sound Qualities

Like most of the Reflektor tubes (from both the 1960s and the 1970s), the 1971's have beautiful airy highs and sound very natural. They excel in sound detail and clarity, and overall tonality is warm, rich and relaxed. The sound stage produced by these tubes is spacious and holographic, very similar to the German E88CC's. They are very fast tubes, as in solid state fast and precise, but with tube liquidity and warmth. There is an immediacy to the sound, crisp and tonally dense, never etched or brittle. These are among my go-to tubes for late night movies when I switch my entire sound world to the headphone stack because you can listen to the movie sound on them for hours nonstop and don't feel fatigue at all.

Appearance & Cosmetic Condition

Beside the great sound characteristics, we treasure this tube because of its pristine condition - nearly 100% of the paint is intact, and the date code etched on glass is perfectly visible - well nothing is easier to spot than date codes on Soviet tubes - simply look for the "71" letters on the glass and the Roman number before them that stand for the month of production.

Professional Testing & Sound Evaluation

Both tubes tested NOS (100%+ nominal mutual conductance) on a Mercury 2000 tube tester with the following result (mutual conductance in uMhos): 13,000/13,000. 

Good tubes start at 7000 and new tubes (incl. NOS/NIB) 12,500 - 13,000, and the Mercury 2000's rated mutual conductance (nominal) for new tubes is 12,500. Test result can also be seen in the pictures. In case you wonder what all these numbers mean to your sound experience, it's actually quite straightforward: mutual conductance directly translates to a tube's ability to amplify sound so the higher the numbers the stronger. The tube has no short or gas grid leakage. 

Shipping Policy 

 - Ship worldwide! Flat-rate shipping within the US. 

 - Same business day handling. Orders placed by 2:00PM US Pacific Time on weekdays are posted on the same day, otherwise the next business day. 

 - Combined shipping available - request invoice for total before making payment or receive shipping credit after order ships. 

 - Customers outside the US please pay extra attention: International shipping is through eBay International Shipping program by default. It's the least expensive option and customs declaration is automated but it may take longer than other carriers. If you prefer to use a different carrier please contact us before you buy so we can get you the correct shipping rates before you make payment.

Return Policy - Please READ carefully

First of all, returns are acceptable as long as you are reasonable. Soundlumia sets extremely high quality standard for the products we deliver. Tubes we sell are guaranteed to work because we run professional tests and sound evaluation before they are approved for listing AND before we ship them to customers. So the "defective item" case doesn't exist and please do not bother trying - this type of returns will NOT be accepted without proof that tubes do not work and we will open a dispute with eBay. Sound experience is a very subjective thing, and let's be real it's not that easy to run into compatibility issues between amps and tubes (so that one won't fly, either.) Please contact us to work things out before submitting return requests claiming "item is defective" or "item not as described." We would really appreciate your respect to the professional work we have done (sourcing, testing & matching tubes, evaluating tube sound, sharing our sound experience with you, packing and shipping) to make these wonderful vintage tubes available to you at reasonable prices.

Secondly, if you are a tube roller looking to game the return system, Number One STOP. We have seen it all and we know what you're up to. No tricks here please. Abusive behaviors will be reported to eBay immediately and negative feedback will be left to your account - that's guaranteed. We have already reported several abusers and eBay has ruled in our favor the dispute cases. We are more determined than ever to continue working with eBay to help rid of these unprofessional, unjustified, unkind, unfair and unacceptable abuses that are detrimental to the eBay marketplace, the vintage tubes market and the audiophile community. 
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