Power supply for Pearl phono

mattjk · 9th February 2005, 06:06 PM

Help me build a powersupply!

I want build an excellent powersupply for the pearl I'm building, but would appreciate some tips, or post about your custom powersupply.

Thanks,
Matt

pro · 9th February 2005, 07:36 PM

The one showed in http://www.passdiy.com/pdf/pearlphono.pdf
page 3 is a very good one.
Ciao.

Ren · 10th February 2005, 07:33 PM

Matt,

I built the Pearl almost two years ago. Since it was my first real DIY project, I built it exactly as Wayne described it in the article. The Pearl is a fine-sounding phono stage without any mods. I don't think you'll be disappointed building it "stock".

If I were doing it over, I might try using soft-recovery diodes for AC recification and some film bypass caps for the PS electros, just because...

Ren

mattjk · 11th February 2005, 03:30 PM

Sounds good, I will build the stock psu.

If I install the power supply into a shielded metal case, is it OK to install it into the same chassis?

Matt

Ren · 11th February 2005, 06:57 PM

Short answer: I don't really know.

Wayne recommended putting the PS in a separate chassis and I did that. However, I've never noticed any noise increase when I put the PS chassis right next to the preamp chassis.

Ren

pro · 11th February 2005, 07:45 PM

It's the same for me. Two metal chasses one on the other,but no problems. The sound ir really natural.
Ciao

Panelhead · 11th February 2005, 08:25 PM

Quote:

Originally posted by mattjk
Help me build a powersupply!

I want build an excellent powersupply for the pearl I'm building, but would appreciate some tips, or post about your custom powersupply.

Thanks,
Matt

I also am very happy with my Pearl. It has a dual 30v, 50 watt Plitron transformer, schottky bridges, 10K ufd caps, and a pair of 4 mH 2 amp chokes.
This is external from the main phono board. I really think that is better than one boxing the unit. A power transformer can really radiate a field even through a metal housing.
The current draw on the Pearl is very small, 50 ma or so per channel. I really like chokes in the power supplies of class A circuits.

George

9th February 2005, 06:06 PM	#1
mattjk diyAudio Member Join Date: Aug 2004 Location: Huntington Beach, Ca	Power supply for Pearl phono Help me build a powersupply! I want build an excellent powersupply for the pearl I'm building, but would appreciate some tips, or post about your custom powersupply. Thanks, Matt

9th February 2005, 07:36 PM	#2
pro diyAudio Member Join Date: Feb 2004 Location: Milano	The one showed in http://www.passdiy.com/pdf/pearlphono.pdf page 3 is a very good one. Ciao. __________________ Michele

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
Pearl phono with 24V battery supply	koli	Pass Labs	1	9th August 2007 05:03 AM
Pearl Phono power supply	Gregorio	Pass Labs	1	13th October 2004 06:12 PM
Power Supply for Pearl	dkimble	Pass Labs	6	16th March 2004 05:57 PM
Pearl enclosure and power supply?	Boban	Pass Labs	20	27th February 2003 03:43 PM
Beginner questions about Pearl power supply	Saurav	Pass Labs	3	26th September 2002 04:18 PM

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

10th February 2005, 07:33 PM	#3
Ren diyAudio Member Join Date: Apr 2002 Location: Northern Virginia	Matt, I built the Pearl almost two years ago. Since it was my first real DIY project, I built it exactly as Wayne described it in the article. The Pearl is a fine-sounding phono stage without any mods. I don't think you'll be disappointed building it "stock". If I were doing it over, I might try using soft-recovery diodes for AC recification and some film bypass caps for the PS electros, just because... Ren

11th February 2005, 03:30 PM	#4
mattjk diyAudio Member Join Date: Aug 2004 Location: Huntington Beach, Ca	Sounds good, I will build the stock psu. If I install the power supply into a shielded metal case, is it OK to install it into the same chassis? Matt

11th February 2005, 06:57 PM	#5
Ren diyAudio Member Join Date: Apr 2002 Location: Northern Virginia	Short answer: I don't really know. Wayne recommended putting the PS in a separate chassis and I did that. However, I've never noticed any noise increase when I put the PS chassis right next to the preamp chassis. Ren

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