12v for 3875 and 35v for tube buffer?

jsaults · 6th March 2005, 06:45 AM

I already have an IGC with a 12-0-12 based supply. I wanted to add Joe's tube buffer. As a newbie, you'll have to excuse my ignorance, but can I use the 35v supplied tube buffer with the 12v opamp supply?

Thanks for any help!

neutron7 · 6th March 2005, 09:59 PM

the tube requires higher voltage to work, even that 35v is quite low for a tube.

joensd · 6th March 2005, 10:10 PM

Quote:

the tube requires higher voltage to work, even that 35v is quite low for a tube.

Guess jsaults is referring to the JLTi http://members.ozemail.com.au/~lisaras/
If yes, there´s no reason you shouldn´t have two different supply voltages for chip and tube.
Take the appropriate tube though as I´d guess some don´t like the low voltage.

jsaults · 7th March 2005, 10:34 AM

Thank you guys so much! Yeah, that is the buffer I was talking about. It was late the night I posted and I wasn't too clear, sorry 'bout that. Yeah I wondered about the low valve supply voltage but a few people that have tried it and claimed success. I guess I'll shoot for it and see. I figuired the two differing supplies wouldn't matter but it doesn't hurt to lean on wisdom of others. Money and time doesn't come easily to me, and I would hate to see the magic smoke go to heaven

Thanks again, J

6th March 2005, 06:45 AM	#1
jsaults diyAudio Member Join Date: Jun 2004 Location: middle eastern U.S.	12v for 3875 and 35v for tube buffer? I already have an IGC with a 12-0-12 based supply. I wanted to add Joe's tube buffer. As a newbie, you'll have to excuse my ignorance, but can I use the 35v supplied tube buffer with the 12v opamp supply? Thanks for any help!

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6th March 2005, 09:59 PM	#2
neutron7 diyAudio Member Join Date: Dec 2003 Location: Toronto Canada	the tube requires higher voltage to work, even that 35v is quite low for a tube.

7th March 2005, 10:34 AM	#4
jsaults diyAudio Member Join Date: Jun 2004 Location: middle eastern U.S.	Thank you guys so much! Yeah, that is the buffer I was talking about. It was late the night I posted and I wasn't too clear, sorry 'bout that. Yeah I wondered about the low valve supply voltage but a few people that have tried it and claimed success. I guess I'll shoot for it and see. I figuired the two differing supplies wouldn't matter but it doesn't hurt to lean on wisdom of others. Money and time doesn't come easily to me, and I would hate to see the magic smoke go to heaven Thanks again, J

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