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replacing power supply capacitors
replacing power supply capacitors
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Old 15th December 2010, 12:29 AM   #1
dansemacabre is offline dansemacabre  United States
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Join Date: Dec 2009
Location: Portland, Oregon
Default replacing power supply capacitors

I am rebuilding a BGW 750A and need to replace some caps including the power supply capacitors. I am not looking to rebuild this to original specs and if a change would improve performance I would like to do that. I am having a hard time finding an exact replacement and wonder if I can increase or decrease capacitance and to what degree is acceptable. Currently there are two GE 21000uF 85V large can screw type capacitors. Would I be better to move up to 22000uF or down to 19000uF and what difference will it make? I have checked some of the online large electronic supply companies and have been unsuccessful at finding an exact replacement. Would I be better going to more quantity of caps? Thanks
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Old 15th December 2010, 01:13 AM   #2
VictoriaGuy is offline VictoriaGuy  Canada
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replacing power supply capacitors
Either of your alternatives should work just fine, if they will fit properly - check the lead spacing. A small increase in PS cap capacity won't do any harm, so the 22000uF will be OK.

John
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Old 15th December 2010, 02:04 AM   #3
Apex Jr is offline Apex Jr  United States
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Join Date: Jun 2002
Location: Torrance, Calif
replacing power supply capacitors
I would like to let you know I have in stock some Adcom 22,000Uf 100V
Computer Grade caps --- 2 1/2" Diameter and 4 1/2" Tall
These are new surplus and are $23.95 each
http://www.apexjr.com/images/AdcomCap.jpg

Steve @ Apex Jr.
Apex Jr.Home Page
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Old 15th December 2010, 03:39 AM   #4
dansemacabre is offline dansemacabre  United States
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Join Date: Dec 2009
Location: Portland, Oregon
Thanks for the quick replies. Apex Jr, I measured mine and they are 3" diameter x 4 1/2" tall. I need 6 as I am refurbishing 3 amps. I really would like to find a direct size replacement, but if am unsuccessful, that seems like a good price. I think I have enough forgiveness in the wiring to accommodate those. Do you carry the clamps also?

Thanks
Devin
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Old 15th December 2010, 05:15 AM   #5
Apex Jr is offline Apex Jr  United States
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Location: Torrance, Calif
replacing power supply capacitors
Yes.... .89ea

Steve
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