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In Reply to: Re: 6922 variants posted by Steph_n on July 07, 1999 at 13:05:13:
***Hi Victor,
What do you know about the 6N23N-EV?
I understand LAMM uses them instead of 6922s.
The 6N23P-EV *IS* the Russian 6922. I presume LAMM further selects them as per their criteria.Victor.
It would appear to be from a different factory than the 6922 Sovtek sells (or made to a different spec) as it's internal physical construction is quite different in terms of plate structure....Joe
***It would appear to be from a different factory than the 6922 Sovtek sells (or made to a different spec) as it's internal physical construction is quite different in terms of plate structure....The 6H23 tube used to be made at several factories. Today I believe only the Reflector continues making it. But regerdless of where it was made, it must meet the same specs, even if the internal structure is somewhat different. There were two versions: 6H23P and the -EV one, with slightly different specs. What we get today through New Sensor is the -EV version (at least we all hope so), because that is the version that is crossed to the 6922 type.
I don't want to appear that I am speaking for Vladimir, I am simply saying what I understand it is. You might want to ask him that question as well. As I stated before, I do not know his selection criteria.
Regards,
Victor.
I recently got in some late 1970's early 1980's 6N23n-EB. I think that most of these have been sold by New sensor over the years. I have seen a few different types. Some with upside down dish getter, some with a circular getter, some with grey plates, some with silver. Plates themselves, pins, bottle, etc always look like they came fom the same place.But one customer who has had all three feels they sound quite different. I have not had time to do evaluations myself. Perhaps later. But getting an exact description as to plate color and getter is tough when you are importing a tube that is not too expensive. I may try to get some in that are nifty.
***I recently got in some late 1970's early 1980's 6N23n-EB. I think that most of these have been sold by New sensor over the years. I have seen a few different types. Some with upside down dish getter, some with a circular getter, some with grey plates, some with silver. Plates themselves, pins, bottle, etc always look like they came fom the same place.Also, tubes produced at the same factory would undergo many changes over the years. The Soviet factories used to be swarming with pests called "rationalisators". Those usually were production workers who believed they could design things far better than engineers. So as soon as designers would leave the production floor, the pests would crawl in and start making "improvements" to the product. This practice was highly supported by management and the Party apparatchics, for it meant showing the decadent "specialists" what a dumb "proletarian" could do if equipped with nothing more than just a revolutionary zeal.
Many fine products were ruined by those pesky rationalisators. All good engineers hated them. My former boss used to say that all of them should be taken outside and summarily executed on a sunny day.
So, if you can, get the tubes designed by engineers, not the ones that have been "improved" by the rationalisators. How do you tell them apart? Damn if I know.
Regards,
Victor.
As the son and brother of, a Gastroenterologist, I can appreciate
the word "specialist." Many nurses, who are quite capable in their
own right, start believing they can do it better. Then the patient
dies. Uh Oh.Chris Garrett
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