12SX7

gianis · 16th February 2006, 01:52 PM

Is really the 12SX7 tube a 6SN7 [12SN7] ?

SvErD · 16th February 2006, 02:21 PM

shhh, don't tell!!

EC8010 · 16th February 2006, 02:22 PM

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.

gianis · 16th February 2006, 06:25 PM

Please ,,,any data, information, schematics, about this tube? I have a lot of them and i think to build something around these

thanks!

EC8010 · 16th February 2006, 06:44 PM

The source of all valve data...

http://www.tubedata.info/

rdf · 16th February 2006, 06:46 PM

http://www.mif.pg.gda.pl/homepages/frank/vs.html

Original Burnedfingers · 18th February 2006, 11:44 AM

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.

jlsem · 19th February 2006, 04:25 AM

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

EC8010 · 19th February 2006, 09:48 AM

That's interesting - it doesn't mention that in the Milspec document.

Andrewbee · 19th February 2006, 01:15 PM

and what about tubes like the 7N7 / 14N7 or the 6CG7

Andrew

16th February 2006, 02:21 PM	#2
SvErD diyAudio Member Join Date: Jan 2002 Location: Norway	shhh, don't tell!! __________________ I don't suffer from insanity, I enjoy every minute of it!

16th February 2006, 02:22 PM	#3
EC8010 diyAudio Moderator Join Date: Jan 2003 Location: Near London. UK	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. __________________ The loudspeaker: The only commercial Hi-Fi item where a disproportionate part of the budget isn't spent on the box. And the one where it would make a difference...

16th February 2006, 06:25 PM	#4
gianis diyAudio Member Join Date: Jan 2004 Location: athens	12sx7 Please ,,,any data, information, schematics, about this tube? I have a lot of them and i think to build something around these thanks!

16th February 2006, 06:44 PM	#5
EC8010 diyAudio Moderator Join Date: Jan 2003 Location: Near London. UK	The source of all valve data... http://www.tubedata.info/ __________________ The loudspeaker: The only commercial Hi-Fi item where a disproportionate part of the budget isn't spent on the box. And the one where it would make a difference...

19th February 2006, 09:48 AM	#9
EC8010 diyAudio Moderator Join Date: Jan 2003 Location: Near London. UK	That's interesting - it doesn't mention that in the Milspec document. __________________ The loudspeaker: The only commercial Hi-Fi item where a disproportionate part of the budget isn't spent on the box. And the one where it would make a difference...

16th February 2006, 06:46 PM	#6
rdf diyAudio Member Join Date: Jun 2004 Location: big smoke	http://www.mif.pg.gda.pl/homepages/frank/vs.html

18th February 2006, 11:44 AM	#7
Original Burnedfingers diyAudio Member Join Date: Nov 2002	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.

19th February 2006, 01:15 PM	#10
Andrewbee diyAudio Member Join Date: Apr 2002 Location: Cayman Islands	and what about tubes like the 7N7 / 14N7 or the 6CG7 Andrew __________________ None of us are leaving this world alive. Enjoy it responsibly as you may.

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