Rubycon Black Gate Capacitor Failure & Teardown!!!

Rubycon Black Gate Capacitor Failure & Teardown!!! Legendary Black Gate Succumbs to corrosion from glue. I show LCR readings and a find exactly where the fault occurred. One thing I failed to point out was that there was no presence of any liquid electrolyte in this capacitor.

[@coolmoments2994]

He gets it open at about 12:44

[@CM-xr9oq]

Thank you

[@izzzzzz6]

I always store my amplifiers upside down when I'm not using them, in case the electrolyte escapes the capacitors.

[@jeffharper410]

I was told Black Gate used a proprietary electrolytic formula that is very strong. My guess is the electrolytic ate its way through and evaporated out , leaving deposits behind. Your fingers should be wet with electrolite.

[@vintageav]

@jeffharper410 It was definitely dry inside. I am going to replace some other Black Gates from the same amplifier that are still functioning and will take one of those apart to see if it is dry as well. Thanks for the comment.

[@jeffharper410]

@vintageav I have a pair of Audion Golden Dreams right now . They are level 6 , so upgraded with Black Gates and silver wire. $23k new 18 years ago! The noise floor was over 50db. At 9:00 o'clock on the volume control. All 8 big Black Gates have high ESR and dry as a bone. I am ordering Audio Note replacments.

[@vintageav]

@@jeffharper410 Interesting! Thanks for the insight!