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Old 16th February 2006, 01:52 PM   #1
gianis is offline gianis  Greece
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Default 12sx7

Is really the 12SX7 tube a 6SN7 [12SN7] ?
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Old 16th February 2006, 02:21 PM   #2
SvErD is offline SvErD  Norway
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shhh, don't tell!!
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Old 16th February 2006, 02:22 PM   #3
EC8010 is offline EC8010  United Kingdom
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Yes, it's just one that has been selected for operation at low voltages. But there's a mystique around it and people pay an arm and a leg for it.
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Old 16th February 2006, 06:25 PM   #4
gianis is offline gianis  Greece
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Arrow 12sx7

Please ,,,any data, information, schematics, about this tube? I have a lot of them and i think to build something around these thanks!
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Old 16th February 2006, 06:44 PM   #5
EC8010 is offline EC8010  United Kingdom
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The source of all valve data...

http://www.tubedata.info/
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Old 16th February 2006, 06:46 PM   #6
rdf is offline rdf  Canada
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Old 18th February 2006, 11:44 AM   #7
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gianis,

Are you willing to pay $40 or more for a good pair of them? There is a guy on ebay that sells them for 40 a crack.

The Russian 6N8S/1578 tube is superior. The 1578 is a very fine performing tube that I'm sure will beat the 12SX7.
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Old 19th February 2006, 04:25 AM   #8
jlsem is offline jlsem  United States
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Quote:
Yes, it's just one that has been selected for operation at low voltages. But there's a mystique around it and people pay an arm and a leg for it.
Actually the salient difference between the 12SX7 and the 12SN7 is the the former has a twisted filament for lower hum like a 12AX7A or 7025A.

John
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Old 19th February 2006, 09:48 AM   #9
EC8010 is offline EC8010  United Kingdom
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That's interesting - it doesn't mention that in the Milspec document.
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Old 19th February 2006, 01:15 PM   #10
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and what about tubes like the 7N7 / 14N7 or the 6CG7

Andrew
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