Regulated PS Kit

cantskienuf · 22nd September 2004, 07:52 PM

I'm thinking of trying some bi-amping with my Gainclones and an active crossover. I've settled on the crossover, but not the power supply. I've been doing some searching and haven't stumbled upon a simple solution. I'd like to find a +15v -15V regulated power supply PCB, or kit, that somebody has prototyped and procured a few of, similar to what Brian has put together for the LM3875 gainclones. I've seen a few designs, and I guess I could point-to-point something, but if there are PCBs, or kits, available in the U.S. market that would do the job, that sure would be easier.

thomas997 · 23rd September 2004, 01:35 AM

You might want to raise the voltage if possible (20-30)

Although 15 should work alright.

orpheus · 23rd September 2004, 01:59 AM

Jim Hagerman has a 15 + 15 - kit that he sells for his Bugle Phono Preamp. You can adjust the voltage if you want more or less than 15 volts.

I've built one, but I haven't drilled the holes for the chassis yet (my least favorite part of building), so I haven't tried it out yet. Hagerman has a forum at Audiocircle, and he is very quick to respond or help with parts substitutions.

The board is $25, and the parts are all available from Digi-key.

http://www.hagtech.com/bugle.html#powersupply

-Aaron.

cantskienuf · 23rd September 2004, 02:58 PM

Thanks Aaron. That seems to be what I'm looking for to power the crossover.

studiotech · 23rd September 2004, 07:17 PM

check out circuitspecialists.com

http://www.circuitspecialists.com/level.itml/icOid/4078

kit 124 and 125 work well. I used them in a preamp last year. No problem yet! All you have to do is supply the appropriate xformer.

Greg

cantskienuf · 23rd September 2004, 07:31 PM

Great! Thanks Greg.

Now I've got Hagerman using the NJM78M15FA & 79M15FA chips, Circuit Specialists using the LM317 & 337 chips and Marchand using the LM340 & 320 chips.

ofb · 24th September 2004, 12:23 AM

another option for small simple +-15 using 317/337 is on this page. no pcb, but it goes together quickly on perf board. you can get all the parts from digikey.
http://headwize.com/projects/showfil...stokes_prj.htm

add small heat sinks to the parts lists. doesn't need anything fancy. i'm using it in a meta42 and it barely gets warm.

thomas997 · 24th September 2004, 03:20 AM

sorry was thinking about the wrong thing, ignore my post.

22nd September 2004, 07:52 PM	#1
cantskienuf diyAudio Member Join Date: Dec 2003 Location: Denver, CO	Regulated PS Kit I'm thinking of trying some bi-amping with my Gainclones and an active crossover. I've settled on the crossover, but not the power supply. I've been doing some searching and haven't stumbled upon a simple solution. I'd like to find a +15v -15V regulated power supply PCB, or kit, that somebody has prototyped and procured a few of, similar to what Brian has put together for the LM3875 gainclones. I've seen a few designs, and I guess I could point-to-point something, but if there are PCBs, or kits, available in the U.S. market that would do the job, that sure would be easier.

23rd September 2004, 01:59 AM	#3
orpheus diyAudio Member Join Date: Jul 2004 Location: NYC	Try Hagerman Bugle Power supply kit. Jim Hagerman has a 15 + 15 - kit that he sells for his Bugle Phono Preamp. You can adjust the voltage if you want more or less than 15 volts. I've built one, but I haven't drilled the holes for the chassis yet (my least favorite part of building), so I haven't tried it out yet. Hagerman has a forum at Audiocircle, and he is very quick to respond or help with parts substitutions. The board is $25, and the parts are all available from Digi-key. http://www.hagtech.com/bugle.html#powersupply -Aaron.

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23rd September 2004, 01:35 AM	#2
thomas997 diyAudio Member Join Date: Feb 2004 Location: Vancouver	You might want to raise the voltage if possible (20-30) Although 15 should work alright.

23rd September 2004, 02:58 PM	#4
cantskienuf diyAudio Member Join Date: Dec 2003 Location: Denver, CO	Thanks Aaron. That seems to be what I'm looking for to power the crossover.

23rd September 2004, 07:17 PM	#5
studiotech diyAudio Member Join Date: Jun 2004 Location: Orlando, FLA	check out circuitspecialists.com http://www.circuitspecialists.com/level.itml/icOid/4078 kit 124 and 125 work well. I used them in a preamp last year. No problem yet! All you have to do is supply the appropriate xformer. Greg

23rd September 2004, 07:31 PM	#6
cantskienuf diyAudio Member Join Date: Dec 2003 Location: Denver, CO	Great! Thanks Greg. Now I've got Hagerman using the NJM78M15FA & 79M15FA chips, Circuit Specialists using the LM317 & 337 chips and Marchand using the LM340 & 320 chips.

24th September 2004, 12:23 AM	#7
ofb diyAudio Member Join Date: Oct 2002 Location: canada	another option for small simple +-15 using 317/337 is on this page. no pcb, but it goes together quickly on perf board. you can get all the parts from digikey. http://headwize.com/projects/showfil...stokes_prj.htm add small heat sinks to the parts lists. doesn't need anything fancy. i'm using it in a meta42 and it barely gets warm.

24th September 2004, 03:20 AM	#8
thomas997 diyAudio Member Join Date: Feb 2004 Location: Vancouver	sorry was thinking about the wrong thing, ignore my post.

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