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Need help finding new(old) capacitor or equivalent, please

zmchl31

Mar 21, 2023
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Hello! I'm new here and looking for some expert advice. I know very little when it comes to electronics but I'm trying to fix and old Marantz player piano from the early 80s. The circuit board has a date written on it from 1978. I have identified that the Sprague Powerlytic capacitor is bad. Burnt terminal was a good indication. I'm trying to find a replacement or equivalent and I don't know where to look. Any help would be greatly appreciated.

The capacitor is labeled
Sprague Powerlytic
36D
1600-200DC
7826L 2502
Made In USA

Thanks!
 

Minder

Apr 24, 2015
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That is a Sprague electrolytic, very popular make.
You need to look for an electrolytic replacement, 1600uF at 200vdc.
Try Digikey or Mouser.
 

zmchl31

Mar 21, 2023
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Thank you, sir! I'm trying to learn what I can about these things. I appreciate the quick reply!
 

kellys_eye

Jun 25, 2010
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Electrolytic capacitors are very 'loose' with their values - typically +10 to -50% . 1600uF isn't a common value but 2200uF is and will probably work in its place. The only 'absolute' you need is that the working voltage is AT LEAST the 200V specified.

Equally, high voltage, high value capacitors aren't ease to find but you can connect them in parallel to increase the value (they 'add' in parallel) so two 1,000uF, 200V capacitors would work and, potentially, be easier/cheaper to find.
 

Minder

Apr 24, 2015
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I see quite a few suppliers have the 1600uf versions, not all that cheap!
 

kellys_eye

Jun 25, 2010
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I see quite a few suppliers have the 1600uf versions, not all that cheap!
Yup, seems so - not a value you see very often and certainly not the usual 'E-series'. Still, if the hat fits......
 

zmchl31

Mar 21, 2023
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I figured that particular component might be an odd ball. Like I said, it's from 45 year old circuit board inside a player piano. Another question though, as the capacitor failed one of the terminals sparked and left the board a little charred. I figured I could scrape away some of the mess, but how big a problem is that going to cause?
 

zmchl31

Mar 21, 2023
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The first pic is the board I pulled out of the body of the piano. I figure I'm looking for a capacitor within spec but also will fit where the old one was. I'm measuring an 80mm body height.

The piano lies. It is not ready to go :(
 

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roughshawd

Jul 13, 2020
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Hello! I'm new here and looking for some expert advice. I know very little when it comes to electronics but I'm trying to fix and old Marantz player piano from the early 80s. The circuit board has a date written on it from 1978. I have identified that the Sprague Powerlytic capacitor is bad. Burnt terminal was a good indication. I'm trying to find a replacement or equivalent and I don't know where to look. Any help would be greatly appreciated.

The capacitor is labeled
Sprague Powerlytic
36D
1600-200DC
7826L 2502
Made In USA

Thanks!
Use the exact same uf...but higher voltage ..
 
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