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Old 29th May 2009, 09:11 PM   #21
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No, 6N1P and 6N2P are not replacements for 12AX7, they are replacements for 6N8S and 6N9S (6SN7 and 6SL7), by initial design, and they were offered in Russia such a way.
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Old 29th May 2009, 11:45 PM   #22
ktuuri is offline ktuuri  Canada
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6N1P and 6N2P are 9 pin tubes not octal 8 pin like 6N8S and 6N9S.
6N1P is close to a 6DJ8 but it has a much higher heater current then 6DJ8, 6N1P (600 ma)
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Old 29th May 2009, 11:48 PM   #23
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Quote:
Originally posted by ktuuri
6N1P and 6N2P are 9 pin tubes not octal 8 pin like 6N8S and 6N9S.

You are right; they were designed as miniature replacements for octal tubes, for new equipment development.
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Old 29th May 2009, 11:48 PM   #24
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To DHT112A... Thanks a bunch from a whole lot of people...
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Old 30th May 2009, 02:17 AM   #25
DHT112A is offline DHT112A  United States
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My pleasure. I found it on the web several years ago but can't remember where or I would have posted the link. Since I did find it on the web anyone who wants is free to post it on their site.
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Old 30th May 2009, 03:41 AM   #26
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Thanks DHT112A .
You put it up pretty quick.
Ashok.
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Old 30th May 2009, 04:41 AM   #27
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Thanks for posting the PDF, DHT112A!
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Old 30th May 2009, 10:20 AM   #28
Arnulf is offline Arnulf  Europe
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Quote:
Originally posted by Wavebourn
No, 6N1P and 6N2P are not replacements for 12AX7, they are replacements for 6N8S and 6N9S (6SN7 and 6SL7), by initial design, and they were offered in Russia such a way.
Funny thing is it matches neither 6SL7 nor *AX7 directly - it has mu of 100 (like 6AX7/12AX7/ECC83), rp close to 6SL7 and somewhat higher Ih, Ia and S than both of those. Being a noval tube it is easy to understand why is is considered to be the replacement for ECC83.
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Old 30th May 2009, 01:12 PM   #29
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This vendor has also a list of equivalent tubes. The russian tubes are at the end of the list p45-49. Lots of details

http://www.vacuum-tube-shop.com/vacuum-tube-shop.pdf
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Old 30th May 2009, 02:30 PM   #30
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To Arnulf
The 6H9C is the Russian equivelant to the 6SL7. That's the one I was looking for...watching a couple on Feebay.
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