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Old 13th October 2005, 11:37 AM   #1
wuffer is offline wuffer  Denmark
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Default Regulated psu for tube preamp

i was thinking if it would be possible to make a regulated psu for an tube preamp..

it should have 6v 0.8a and 40v 1a.. ground is the same...

is it possible??
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Old 13th October 2005, 11:47 AM   #2
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Default Re: Regulated psu for tube preamp

Quote:
Originally posted by wuffer
i was thinking if it would be possible to make a regulated psu for an tube preamp..

it should have 6v 0.8a and 40v 1a.. ground is the same...

is it possible??
The heaters I understand, but 40V at 1A? Huh?

Of course you can do a regulated PS for a tube preamp. I like shunt regs best myself.
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Old 13th October 2005, 11:51 AM   #3
amperex is offline amperex  United States
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I do not know of any tubes that operate linear at 40 volts plate. TI made a floating type 3-terminal regulator that operated up to 120 volts output @ 1 amp.
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Old 13th October 2005, 12:11 PM   #4
wuffer is offline wuffer  Denmark
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thanks..
tubes are 6J5-GT
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Old 13th October 2005, 12:19 PM   #5
SY is offline SY  United States
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You'll need a minimum of 100V on the plates, which means a supply in the 200-400V range. Unless you're going to run 50 of them, you don't need anything like 1A.
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Old 13th October 2005, 12:26 PM   #6
wuffer is offline wuffer  Denmark
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i have heard it with a normal psu with big caps and 40v and it sound good, very good

can se the transformer is 24-30v 1a and should be 32-42v after the rectifier and caps so i want the same just want to try the regulated psu instead
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Old 13th October 2005, 12:27 PM   #7
SvErD is offline SvErD  Norway
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I bet it's this one, plays very nice by the way even though it's not textbook........

http://www.diyaudio.com/forums/showt...443#post131443
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Old 13th October 2005, 12:30 PM   #8
wuffer is offline wuffer  Denmark
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Quote:
Originally posted by SvErD
I bet it's this one, plays very nice by the way even though it's not textbook........

http://www.diyaudio.com/forums/showt...443#post131443

looks like the one i want to build the bastard
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Old 13th October 2005, 12:56 PM   #9
SvErD is offline SvErD  Norway
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Jepp, it's the B*A*S*T*A*R*D from Ny Elektronikk. I built mine 10-12 years ago and still use it i one of my systems.

I use some old L63 tubes by the way.
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Old 13th October 2005, 12:59 PM   #10
wuffer is offline wuffer  Denmark
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sounds good
i have the construction manual here and 1 pcb..
i would go after the 6J5-GT tubes.. those i can get..

what pots are you using for volume
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