HV SMPS for tube preamp

Johan_Ch · 4th October 2008, 08:41 PM

Hi everyone.

I'm buildning a new tube based pre-amplifier and I would like to use a SMPS as the power source.

I have read some articles around the net on designing SMPS powersupply, and it dosen't seem to be the easiest thing to do so I'm woundering if this has already been done by someone here or some design that woulden't be to hard to modify.

I'm planning to put the PSU in a seperate cabinet, and I would need +300V around 300mA and +/-20V around 4A.

Any ideas on this?

/Johan Ch

N-Channel · 7th October 2008, 02:36 PM

Johan,

Check out the 28 JUL 2004 issue of Silicon Chip magazine. A regulated high-voltage tube power supply made from an old AT/ATX power supply.......

Steve

N-Channel · 7th October 2008, 02:37 PM

...Here's another shot.

N-Channel · 7th October 2008, 02:38 PM

...and the control section.

umut1001 · 2nd April 2009, 02:55 PM

hi..i build a preamp for my soundcard with lm49710 opamps.it sounds good.i am using sennheiser hd25..i am using the PC's smps..its +-12 volts..but there is some noise.i am using 100n capacitors but there is still noise...which filter should i use?thanks

vasko · 23rd May 2010, 10:08 PM

hey I want to make this too

where is complete schematic for this project?

SY · 23rd May 2010, 10:44 PM

Quote:

Originally Posted by Johan_Ch

Hi everyone.

I'm buildning a new tube based pre-amplifier ... and I would need +300V around 300mA and +/-20V around 4A.

Any ideas on this?

Yes- that's a BIG damn preamp!

croat47 · 2nd December 2010, 05:10 PM

Quote:

Originally Posted by N-Channel

...and the control section.

N-channel...have a PDF of the article around?

N-Channel · 6th December 2010, 04:31 PM

Nope, sorry I don't. Just the pics and text.

4th October 2008, 08:41 PM	#1
Johan_Ch diyAudio Member Join Date: Sep 2002 Location: Sweden	HV SMPS for tube preamp Hi everyone. I'm buildning a new tube based pre-amplifier and I would like to use a SMPS as the power source. I have read some articles around the net on designing SMPS powersupply, and it dosen't seem to be the easiest thing to do so I'm woundering if this has already been done by someone here or some design that woulden't be to hard to modify. I'm planning to put the PSU in a seperate cabinet, and I would need +300V around 300mA and +/-20V around 4A. Any ideas on this? /Johan Ch

6th December 2010, 04:31 PM	#9
N-Channel diyAudio Member Join Date: Mar 2003 Location: Sol System	Nope, sorry I don't. Just the pics and text. __________________ -. ---.. -..- ---

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Tube Preamp Popping on Source Input Change (?) / 6DJ8 Preamp On Chip Amps	MartyM	Tubes / Valves	3	16th October 2008 04:52 AM
FS : Battery Supply Tube Preamplifier (12V SMPS to 275V)	ANALOG GUY	Swap Meet	0	30th October 2006 08:38 AM
SMPS for tube amp?	kubeek	Tubes / Valves	15	20th May 2006 12:24 PM
SMPS & tube pre-amp development board.	ianl	Tubes / Valves	2	10th April 2006 06:05 PM
need diy tube preamp (line-stage) recommendation and general tube advice	Musiclover4	Tubes / Valves	15	24th November 2005 01:19 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

2nd April 2009, 02:55 PM	#5
umut1001 diyAudio Member Join Date: Mar 2007 Location: Istanbul	hi..i build a preamp for my soundcard with lm49710 opamps.it sounds good.i am using sennheiser hd25..i am using the PC's smps..its +-12 volts..but there is some noise.i am using 100n capacitors but there is still noise...which filter should i use?thanks

23rd May 2010, 10:08 PM	#6
vasko diyAudio Member Join Date: May 2010	hey I want to make this too where is complete schematic for this project?

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)