Help Capacitors for Aleph 3

vsr123 · 21st March 2003, 12:44 AM

Hi Folks
I am trying to build a power supply for the Aleph 3 amp based on http://web.vip.hr/pcb-design.vip/power-3.html
For each channel I need a total of 8, 22000uF 40 V capacitors.
Looking at Digikey each Cap is going to cost up to around $20/- (total of 160 just for the caps).
I am looking at part P10083-ND (electrolytic computer grade cap). Am I looking at the right cap? There seem to be so many kinds - Axial, Radial, Mica, Electrolytic.....I am lost as to which one I should be getting.
Also if I get 16 capacitors (of 11000 uF & 40V) and wired each pair in parallel, wouldnt I be getting the same effect? Wouldnt this also work out cheaper for me?

If anyone knows of another part that I could use or another source, please do let me know.

Any suggestions on the parts for the 600v/35A Diode rectifier are greatly appreciated.

thanks in advance
vsr

MikeW · 21st March 2003, 07:36 PM

Try Ra-Elco in Salt Lake City. I just bought some 56000 uf. 63 volts for somewhere around $10. The # is 801-487-7749. Ask for Robert.

joensd · 21st March 2003, 07:44 PM

Unless those 56000uF caps are superduper cheap I wouldn´t go for a 63V rating of the caps when rails are +-25V.
Cost- and sizewise.
I would look for some 40V caps at a reasonable price.
Regarding what to buy...
Well, it all depends on the money you wanna spend.
I wouldn´t go for Black Gates or something crazy but electrolytics with low ESR, high ripple current and the ability to survive a few thousand hours at 105 degress are nice to have...

Just my two cents

Jens

Peter Daniel · 21st March 2003, 07:53 PM

Also try this thread, since it's dealing with exactly the same matter http://www.diyaudio.com/forums/showt...749#post148749

Apex Jr · 23rd March 2003, 12:31 AM

I looked at some of the prices you guys have to pay
retail and I'm been busy buying caps......
I have in stock now a Nippon Chemi-Con
68,000uf at 50V 2 1/2" dia X 3 1/8" computer grade cap
screw mounts on top not yet listed on the website
for $5.95ea
I'll be getting in next week 34,000uf at 40V
10,000uf 80V and 6800uf at 80V
Steve @ Apex Jr

Mark A. Gulbrandsen · 23rd March 2003, 05:08 AM

Its very doubtful that anyone would hear any difference in power supply caps assuming that any used are less than 5 years old. I've always used what ever is cheapest as long as its fresh and unused. The bigger audible difference is going to be if you add an inductor or not, and to remove R-19 if your sinks can take the heat!!
Mark

joensd · 23rd March 2003, 03:21 PM

Quote:

I looked at some of the prices you guys have to pay
retail and I'm been busy buying caps......
I have in stock now a Nippon Chemi-Con
68,000uf at 50V 2 1/2" dia X 3 1/8" computer grade cap
screw mounts on top not yet listed on the website
for $5.95ea
I'll be getting in next week 34,000uf at 40V
10,000uf 80V and 6800uf at 80V
Steve @ Apex Jr

Damn, I wish we had such nice offers here in Europe.
If shipping wasn´t so expensive.
Can´t you open another shop over here?

Jens

Mark A. Gulbrandsen · 23rd March 2003, 09:49 PM

Paying the high price of shipping could still save you a ton over in Europe! Caps are generally inexpensive here....unless you're after designer/decorator caps....
Mark

dlharmon · 23rd March 2003, 10:42 PM

See this post for 68000uF 50V for $4 (Quantity greater that 3) These are from BG Micro

http://www.diyaudio.com/forums/showt...600#post149600

Darrell Harmon

Piersma · 23rd March 2003, 10:57 PM

Maybe a good alternative VSR......... and still available.
Unused and euro 12 each.

21st March 2003, 12:44 AM	#1
vsr123 diyAudio Member Join Date: Mar 2003 Location: california	Help Capacitors for Aleph 3 Hi Folks I am trying to build a power supply for the Aleph 3 amp based on http://web.vip.hr/pcb-design.vip/power-3.html For each channel I need a total of 8, 22000uF 40 V capacitors. Looking at Digikey each Cap is going to cost up to around $20/- (total of 160 just for the caps). I am looking at part P10083-ND (electrolytic computer grade cap). Am I looking at the right cap? There seem to be so many kinds - Axial, Radial, Mica, Electrolytic.....I am lost as to which one I should be getting. Also if I get 16 capacitors (of 11000 uF & 40V) and wired each pair in parallel, wouldnt I be getting the same effect? Wouldnt this also work out cheaper for me? If anyone knows of another part that I could use or another source, please do let me know. Any suggestions on the parts for the 600v/35A Diode rectifier are greatly appreciated. thanks in advance vsr

21st March 2003, 07:36 PM	#2
MikeW diyAudio Member Join Date: Sep 2002 Location: North of Boston	Try Ra-Elco in Salt Lake City. I just bought some 56000 uf. 63 volts for somewhere around $10. The # is 801-487-7749. Ask for Robert. __________________ MikeW

21st March 2003, 07:53 PM	#4
Peter Daniel diyAudio Member Join Date: Jul 2002 Location: Toronto, Canada	Also try this thread, since it's dealing with exactly the same matter http://www.diyaudio.com/forums/showt...749#post148749 __________________ www.audiosector.com “Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC

23rd March 2003, 12:31 AM	#5
Apex Jr diyAudio Member Join Date: Jun 2002 Location: Torrance, Calif	Capacitors coming in I looked at some of the prices you guys have to pay retail and I'm been busy buying caps...... I have in stock now a Nippon Chemi-Con 68,000uf at 50V 2 1/2" dia X 3 1/8" computer grade cap screw mounts on top not yet listed on the website for $5.95ea I'll be getting in next week 34,000uf at 40V 10,000uf 80V and 6800uf at 80V Steve @ Apex Jr

23rd March 2003, 10:42 PM	#9
dlharmon diyAudio Member Join Date: Nov 2001 Location: TN, USA	See this post for 68000uF 50V for $4 (Quantity greater that 3) These are from BG Micro http://www.diyaudio.com/forums/showt...600#post149600 Darrell Harmon __________________ http://gemini.tntech.edu/~dlh5678


	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

21st March 2003, 07:44 PM	#3
joensd diyAudio Member Join Date: Dec 2001 Location: Germany	Unless those 56000uF caps are superduper cheap I wouldn´t go for a 63V rating of the caps when rails are +-25V. Cost- and sizewise. I would look for some 40V caps at a reasonable price. Regarding what to buy... Well, it all depends on the money you wanna spend. I wouldn´t go for Black Gates or something crazy but electrolytics with low ESR, high ripple current and the ability to survive a few thousand hours at 105 degress are nice to have... Just my two cents Jens

23rd March 2003, 05:08 AM	#6
Mark A. Gulbrandsen diyAudio Member Join Date: Sep 2001 Location: Salt Lake City	Its very doubtful that anyone would hear any difference in power supply caps assuming that any used are less than 5 years old. I've always used what ever is cheapest as long as its fresh and unused. The bigger audible difference is going to be if you add an inductor or not, and to remove R-19 if your sinks can take the heat!! Mark

23rd March 2003, 09:49 PM	#8
Mark A. Gulbrandsen diyAudio Member Join Date: Sep 2001 Location: Salt Lake City	Paying the high price of shipping could still save you a ton over in Europe! Caps are generally inexpensive here....unless you're after designer/decorator caps.... Mark

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

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
aleph capacitors available	MikeZ	Pass Labs	0	15th September 2006 02:04 AM
Aleph-x capacitors	anders.a	Pass Labs	1	9th April 2005 02:55 PM
Capacitors at Aleph 3	Odysei	Pass Labs	1	27th July 2004 03:29 AM
Capacitors for the Aleph 2	Hydesg	Pass Labs	2	23rd February 2003 03:31 PM
Aleph P Capacitors	USI	Pass Labs	1	23rd January 2002 10:31 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