Can I replace a 4 post filter cap with a standard 2 post? - diyAudio
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Old 23rd February 2011, 05:36 AM   #1
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Default Can I replace a 4 post filter cap with a standard 2 post?

Hello Everyone,
I'm a newbie here. I should also mention I am very inexperienced with electronics. Basically I've replaced LED's & small capacitors, etc.
I have a little amp that has 2 filter caps (10,000 uF, 50wv) with 4 posts attached to a board and wires to the power supply. (see pics)
My question is can I replace these caps with 2 post caps? and can anyone patient enough explain how to wire a 2 post cap to this amp?
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Old 23rd February 2011, 09:37 AM   #2
SY is offline SY  United States
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Have the original caps gone bad? Electrically, it's an easy replacement (assuming this isn't a switching supply)- just plus to plus and minus to minus, the old terminals were redundant. Mechanically, it may be a bit of a pain, requiring a very fine drill.
"You tell me whar a man gits his corn pone, en I'll tell you what his 'pinions is."
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Old 24th February 2011, 10:20 AM   #3
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What type of amp is that? Sometimes (in old valve amps) you will find filter caps with 4-5 posts and the large "outer can" actually houses two smaller caps. However, this will usually be indicated somewhere on the capacitor
Eg100uF + 100uF / 400V).

If you are certain they are single capacitor cans, two of the legs/leads represent + and - and the other two are likely for mechanical support.
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