Author Topic: DIP socket moss  (Read 883 times)

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Offline Alex EisenhutTopic starter

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DIP socket moss
« on: December 31, 2019, 12:11:05 am »
What could this be? This weird growth on just the one pin of a socket... The PCB is for a disk drive for a Commodore 64. Indoor stuff. The board looks fine. Just the ONE pin on the ONE socketed 74LS ... Is it a tardigrade? Or a new kind of mushroom?
Hoarder of 8-bit Commodore relics and 1960s Tektronix 500-series stuff. Unconventional interior decorator.
 

Offline amyk

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Re: DIP socket moss
« Reply #1 on: December 31, 2019, 12:56:39 am »
Looks like dried battery electrolyte - maybe from a previous minor leak?
 

Offline Cerebus

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Re: DIP socket moss
« Reply #2 on: December 31, 2019, 01:35:37 am »
Tin whiskers? Certainly looks like them, and electro tin plate isn't uncommon on older sockets.
Anybody got a syringe I can use to squeeze the magic smoke back into this?
 

Offline ChristofferB

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Re: DIP socket moss
« Reply #3 on: January 02, 2020, 03:06:24 pm »
I don't think it's electrolyte leakage. The socket surface below looks shiny, and since there is almost certainly copper and/or nickel present, corrosion damage would have a green/blue tint.

Tin whiskers? Certainly looks like them, and electro tin plate isn't uncommon on older sockets.


I agree, maybe it's not tin whiskers from the socket, but from whatever DIP IC that was in it.

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