Help needed with Capacitors

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#21
perrin21 said:
I can genuinely say that 4 of the caps are bulging to the touch underneath the top cap. They may look ok but even my wife picked out the offender's. Regardless they are all being removed and swapped when I settle on suitable replacements. I was hoping for some suggestions from experience bout what sounds the best out of what fits. I may have missed something from a brand I don't know. I replaced the potentiometers today and set the idle voltage, that made a difference in itself as the old pot crumbled.
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As was mentioned previously, those plastic top caps have a known tendency to become convex and "domed up"over time.
I've seen plenty over the years, being a long time service tech.
And unless they are removed from the circuit, tested for value, ESR, and underside gasket leakage from the lead openings, they can well be still fine.
Visual inspections of bad caps with domed plastic lids are NOT something us professional techs use to determine things.
 
#22
If you do want to go ahead and replace those caps, worn out or not, the caps seen by mchambin seem to be the main ones available at the necessary 22mm dia and 63v @ 4700uF - I'm not sure if it's necessary to use 105*C caps and if not, the UKZ or the UFW versions would probably be a good replacement cap for the old LS ones and still retain the similar Nichicon characteristics - unfortunately, the LKG series are too fat at 35mm (the 'Snap In' version).

There are quite a few other brands available - the CDE 380LX will fit okay but the Rubicon's aren't stocked at Digikey- most of the others are 25mm dia or bigger (Panasonic TS for example) are 25mm - Mouser, etc might have more options

All the best with your project
 
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