Solid State Guitar Amp Forum | DIY Guitar Amplifiers

Solid State Amplifiers => Amplifier Discussion => Topic started by: ToadMeister on May 10, 2017, 09:11:23 AM

Title: Caps Pulling up Skirts
Post by: ToadMeister on May 10, 2017, 09:11:23 AM
Oh these axial ladies, always laying on their side.

Do I have a couple hot ones?

I have a few smaller size capacitors in my ~40yr old amp and the problem with them is the lamination, or plastic skirt on them appears to have slid down by a few mm's.
Almost the appearance on one end like puckering up lips, with a raised skirt on the other end.

These caps seem bad, but then again, it's only a tease.

Anyone familiar with this?
Title: Re: Caps Pulling up Skirts
Post by: galaxiex on May 10, 2017, 09:44:53 AM
A picture would help....
Title: Re: Caps Pulling up Skirts
Post by: ToadMeister on May 10, 2017, 10:01:21 AM
Was thinking just that, but duty, the cruel master beckons. (have to go to work shortly)

Will try to do that later after work if I can find my card reader.
(found it)
Title: Re: Caps Pulling up Skirts
Post by: Enzo on May 10, 2017, 02:04:48 PM
Caps are aluminum cans, with a thin shrink plastic sleeve on which to print stuff.  Heat in the environment over time shrinks the plastic sleeve, so it withdraws like gums from bad teeth.  it is not necessarily a sign of failure.
Title: Re: Caps Pulling up Skirts
Post by: ToadMeister on May 10, 2017, 07:58:43 PM
It doesn't really look serious, other than the plastic skin has moved slightly on a few of them..