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6SCH51P And 6sch9p Equivalents

Folks, are there any replacements for the above mentioned tubes?

I did a search on them, wasn’t able to find anything. My preamp is using them, wanted to buy a spare set, but there’s virtually nothing on the web.

Thanks in advance.
 
Exactly. Plug & Play.
6Ж51П = 6J51P = EF184 = 6EJ7
6Ж9П = 6J9P = E180F = CV6189 = 6688A (found another equivalent)
The russian letter Ж does not exist in latin alphabet, it is translated as J, Z, ZH, SH, SCH ... because it sounds similar ...
 
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Exactly. Plug & Play.
6Ж51П = 6J51P = EF184 = 6EJ7
6Ж9П = 6J9P = E180F = CV6189 = 6688A (found another equivalent)
The russian letter Ж does not exist in latin alphabet, it is translated as J, Z, ZH, SH, SCH ... because it sounds similar ...

Appreciate your help, man, I really do. The funniest thing is I’m fluent in Russian, but couldn’t see the resemblance 😉
 
Ha Ha ... смешно́ it is indeed ...
6s3p is russian single triode
6С3П = 6S3P = EC86 (europe) = 6CM4 (USA) = 6T2 (similar)
6С3П-ЕВ = 6s3p-ev is russian special quality and E86C and EC806S come to mind as european special quality tubes. Haven't seen any of these though. But pinout and function is same as EC86 which is still available.
 
Ha Ha ... смешно́ it is indeed ...
6s3p is russian single triode
6С3П = 6S3P = EC86 (europe) = 6CM4 (USA) = 6T2 (similar)
6С3П-ЕВ = 6s3p-ev is russian special quality and E86C and EC806S come to mind as european special quality tubes. Haven't seen any of these though. But pinout and function is same as EC86 which is still available.

Thanks a lot, Sorento!👍
 
6С3П = 6S3P = EC86 (europe) = 6CM4 (USA) = 6T2 (similar)
6С3П-ЕВ = 6s3p-ev is russian special quality and E86C and EC806S come to mind as european special quality tubes. Haven't seen any of these though. But pinout and function is same as EC86 which is still available.
Really? Compare the pinouts. The 6S3P-EV was designed for gounded cathode operation, while the EC86 etc. are grounded grid triodes.
Best regards!
 
Kay is right. Not plug & play.
Will only work for audio if just pins 2, 3, and 9 are being used as g, k, and anode.
I should have read my cross reference list more carefully where it says " not always pin compatible ".
Sorry for that ....