(Topic ID: 126136)

Data East PSU Rebuild-- Capacitor question

By bubbaganu

4 years ago

Topic Stats

  • 3 posts
  • 2 Pinsiders participating
  • Latest reply 4 years ago by bubbaganu
  • Topic is favorited by 1 Pinsider


#1 4 years ago

I'm rebuilding a PSU for Rocky and Bullwinkle- I was directed to a rebuild kit for a Williams System 7-11A PSU which is similar to the Data East PSU -- I bought the components from this kit listed in this link here:


in the kit they have a radial electolyic 47uf 50v replacement, but on my Data East psu the closest thing I have to this are 4700uf 50v caps--- are these the exchangeable or do I need to order these caps in addition?

Thank in advance for your help.

#2 4 years ago

a 47uf will not work in place of a 4700uf. You always need the same uf rating, but you can use a higher voltage rating. So for example you could use a 4700uf @ 100 volts in place of a 4700 @ 50 volts. You see some of the caps in the kit are higher voltage than what was called for. Sometimes it's you only option, as certain voltage ratings can be hard to find.

Best thing to do is just identify the caps you need, write them down, and order them all together. Great Plains in a good source. So is Mouser, though Mouser has so many options, searching might be a little more difficult.

#3 4 years ago

Thanks, Mouser had everything I was missing.

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