3 Oct
2005
3 Oct
'05
7:45 a.m.
On 10/2/2005 at 2:47 AM Martin Scott Goldberg wrote:
The exposed copper doesn't look to be underlying.
Well, here's a pic of what the cart and connector normally looks like -
http://www.pong-story.com/pics/odyssey/cart7.jpg
http://www.pong-story.com/pics/odyssey/carts.jpg
As you can see, the PCB is much thicker than a standard PCB of today. I'm
assuming its made of a different material then (which is why I'm hoping
people on here in to mini's and such from that period of around 1972 would
be familiar).
The contacts themselves are what are tarnishing and turning green, some
with white deposits.
The PCB looks to be of the plain old phenolic variety, still used today in low-cost
applications requiring only one or two-sided conductors. It can be brittle, particularly
with age, so be gentle.
The contacts themselves appear to be simple tinplate. Try cleaning by gentle rubbing with
an ordinary pencil eraser--that should remove enough tarnish to ensure good contact.
Cheers,
Chuck
