Sansui 9090 Recap Inventory

[micrometer]

I've put together lists of what I think should be recapped in my 9090.

I used xoaphexox's signal path list (thanks) from prior searching. The rest of my list come from the Power, Driver and Protector boards for any electolytics. I've come up with a total of 46 caps (20 in the signal path and 26 elsewhere).

This 9090 is driving my main listening system and I want to get her in tip top shape for the years to come.

I would ask the experts out there for any advice regarding additions/deletions to my lists?

Thanks

 

[bobforapples]

(I am by no means an expert)... But make sure you replace the fusibles on the Driver Board too.

 

[avionic]

(I am by no means an expert)... But make sure you replace the fusibles on the Driver Board too.

About 10 or more...:scratch2:

 

[Hyperion]

Get rid of the Tantalum types - replace with Film types or Electrolytics.

 

[xoaphexox]

I agree with what everyone said, and you may want to replace the stock trim pots with new Bourns 25-turn pots if you want to have an easy time dialing in offset and bias afterwards.

One last move you may want to do is place a poly film bypass cap across the terminals of the new ripple filter capacitors. Use a value about 1/10th of what the new caps will be.

I used 10,000uF bypassed with Panasonic ECQ-P(Z) 1uF but that's just me, I think the stock caps are 6,800uF.

 

[avionic]

I've put together lists of what I think should be recapped in my 9090.

I used xoaphexox's signal path list (thanks) from prior searching. The rest of my list come from the Power, Driver and Protector boards for any electolytics. I've come up with a total of 46 caps (20 in the signal path and 26 elsewhere).

This 9090 is driving my main listening system and I want to get her in tip top shape for the years to come.

I would ask the experts out there for any advice regarding additions/deletions to my lists?

Thanks

Some of these are surely non-polar or bi-polar.

 

[micrometer]

I assumed all the electrolytics were polarized. I guess I'll find out as I take them out. I was going to order all from Digikey but I might have to have a second order to match what comes off the boards.

I appreciate all the good advice from the fellowship.

Thanks

 

[avionic]

I assumed all the electrolytics were polarized

Sorry . I will physically look at every cap as I'm writing them down. Then I only have to order once..Saves on shipping charges....:thmbsp:

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