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Sansui 5500 restoration - filter caps

Childof60

Childof60

AK Subscriber
Subscriber
Picked up a (cosmetically) beautiful Sansui 5500 receiver a few weeks ago of unknown condition. On powering up I found distortion on both channels regardless of the source. I also tested with the amp and pre-amp separated and determined the source of distortion was the power supply. I removed the bottom panel and found one of the filter caps (3300uf @100v) has vented/failed. I plan to replace the two other filter caps (4000uf @ 80V) at the same time. I am looking for suggestions for a source that has the best mechanical fit to the original filter capacitors as nothing I have found so far is close. This seems to be a receiver with a good reputation but not a lot of information on restoration. The appearance is so "classic" I would like to return it to glory.

Any thoughts and suggestions are apreciated.
 
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There are lots of readily available options for replacing those caps. Keep in mind you can go to a little higher values in Capacitance or Voltage.
 
It's unlikely those caps decided to vent for no reason. So it's likely to need more work than just replacing the caps. New caps will be quite a bit smaller than the originals. In most cases you will have to adapt the mounts to hold the smaller caps. As was mentioned, you can easily go to higher values to get a better fit. Another option is to gut the existing caps and mount the new caps inside the original cans.

Please post the serial number for the database. Click on the link in my signature block.

- Pete
 
Childof60 said:
Picked up a (cosmetically) beautiful Sansui 5500 receiver a few weeks ago of unknown condition. On powering up I found distortion on both channels regardless of the source. I also tested with the amp and pre-amp separated and determined the source of distortion was the power supply. I removed the bottom panel and found one of the filter caps (3300uf @100v) has vented/failed. I plan to replace the two other filter caps (4000uf @ 80V) at the same time. I am looking for suggestions for a source that has the best mechanical fit to the original filter capacitors as nothing I have found so far is close. This seems to be a receiver with a good reputation but not a lot of information on restoration. The appearance is so "classic" I would like to return it to glory.

Any thoughts and suggestions are apreciated.
Click to expand...
the capacitors on board F-1426 c-719 and c-720 go bad that's the ones I had to change
 
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