Ok, my über neophyte-ness is going to be blazingly obvious here. When I just Googled this tube, it says it's a ballast/current regulator. I see them on ebay for around a hundred bucks. My 10 second search didn't show any datasheets to help me understand what this is used for. I'm definitely not trying to rain on Bill's parade because he obviously knows more than me about what makes this so special. Could someone explain what this is used in and why you should want it so badly?
Oh, and congratulations Bill on what must be an amazing find!
Yes, it's a current regulator used in the Weston 981 Type 3 tube tester. Pretty funny that as soon as I grabbed this one on Etsy for $49, four of them pop up on Ebay. I've had an Ebay watch on this particular tube for over 2 years now, and for 2 years....nada, except for one that popped up a year or so ago for $300. As soon as I finally find one, pow -- they're suddenly plentiful! Such is tube life, I suppose. The one in the tester works fine now, but you know how I am about backups.
Some (or one) people will substitute a 6N30P or ECC99 or E182CC for a 6N6P... probably same people who sub CV4062s for 6080s on weekends... If you're listening to some Pete Seeger, it's close enough for folk music
Yes, it's a current regulator used in the Weston 981 Type 3 tube tester. Pretty funny that as soon as I grabbed this one on Etsy for $49, four of them pop up on Ebay. I've had an Ebay watch on this particular tube for over 2 years now, and for 2 years....nada, except for one that popped up a year or so ago for $300. As soon as I finally find one, pow -- they're suddenly plentiful! Such is tube life, I suppose. The one in the tester works fine now, but you know how I am about backups.
Ah, gotcha! For a minute I thought you were getting into retro night lights. Bet if you had a half-dozen of them all plugged in and glowing in a dark room, you could just stare at them for hours. Well, you could do that with just about any tube now that I think about it! Nice and shiny tester by the way! I just got a refurbed TV-7D/U, mostly for my old radios.
Considering some of the mad scientists out there, I guess I'm a little surprised that the community is willing to accept that there will be only one tube to roll
The power tubes (rear) have relatively little impact on sound when compared to the driver tubes (front), however, if you can find a pair of 6N6P FOTON Gold Grids, I highly recommend them.
Ah, gotcha! For a minute I thought you were getting into retro night lights. Bet if you had a half-dozen of them all plugged in and glowing in a dark room, you could just stare at them for hours. Well, you could do that with just about any tube now that I think about it! Nice and shiny tester by the way! I just got a refurbed TV-7D/U, mostly for my old radios.
Ah, gotcha! For a minute I thought you were getting into retro night lights. Bet if you had a half-dozen of them all plugged in and glowing in a dark room, you could just stare at them for hours. Well, you could do that with just about any tube now that I think about it! Nice and shiny tester by the way! I just got a refurbed TV-7D/U, mostly for my old radios.
Sweet! Those are great testers, although I hate to work on them because everything inside is super cramped due to their (intentionally) compact size Great that you got it already refurbed!
Hello!
I have been using Soviet tubes for more than 40 years and I want to share some of my comments.
6N6P began to be produced in 1956-57 in Fryazino. Pairs from these years are very rare and I saw an listings on the US market for over $1000 a pair.
Since 1962, they began to be made in Tashkent at the PHOTON plant.
In 1965-1966, NEVZ began to make the same model of tubes.
A lot of different parts of the same model before 85 differ in construction and therefore (probably) can have a different sound (not explored so far)
All these modifications had a filament current of 0.75 A (as I understand it, Valhalla is designed for it)
And if the filament current of these tubes is powered separately, it is clear why the Schiit does not recommend using 6N6P-IR (0.9 A) and most importantly 6N6P-DR (0.85 A)
which in other respects correspond to 6n6p
I had to change 6N6P to 7044 with a converter for the owner of an expensive phono stage and he really liked it
I am carefully studying this thread and have only read half of it so far (about 6 years), but I have already seen a request to replace 6N6P several times
I want to collect more information on this subject and will try to post it on this thread! Maybe this will help someone!
An example with 6N23P-75 Reflector (NG) is not the only possible one, as it seems to me now.
Hello!
I have been using Soviet tubes for more than 40 years and I want to share some of my comments.
6N6P began to be produced in 1956-57 in Fryazino. Pairs from these years are very rare and I saw an listings on the US market for over $1000 a pair.
Since 1962, they began to be made in Tashkent at the PHOTON plant.
In 1965-1966, NEVZ began to make the same model of tubes.
A lot of different parts of the same model before 85 differ in construction and therefore (probably) can have a different sound (not explored so far)
All these modifications had a filament current of 0.75 A (as I understand it, Valhalla is designed for it)
And if the filament current of these tubes is powered separately, it is clear why the Schiit does not recommend using 6N6P-IR (0.9 A) and most importantly 6N6P-DR (0.85 A)
which in other respects correspond to 6n6p
I had to change 6N6P to 7044 with a converter for the owner of an expensive phono stage and he really liked it
I am carefully studying this thread and have only read half of it so far (about 6 years), but I have already seen a request to replace 6N6P several times
I want to collect more information on this subject and will try to post it on this thread! Maybe this will help someone!
An example with 6N23P-75 Reflector (NG) is not the only possible one, as it seems to me now.
Posted a pic of a '58 6N6P Fryazino on page 31 in the Feliks Echo tread. The Fryazino's are the 6N6P Holy Grail. Lucked out a year ago and bought a matched pair from an Ukrainian seller on Ebay for $30. After 15 min listening i promtly bought the 3 pairs he had left. Best sounding 6N6P by far. Exeptional clarity with a warm and natural tone.
Sweet! Those are great testers, although I hate to work on them because everything inside is super cramped due to their (intentionally) compact size Great that you got it already refurbed!
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