foam in DEC SBB drives, ok to remove?
mhs.stein at gmail.com
Sat Nov 29 15:37:34 CST 2014
I had a number of ceramic ICs with gold pins in old anti-static foam; ate
the pins right off.
----- Original Message -----
From: "Nigel Williams" <nw at retroComputingTasmania.com>
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk at classiccmp.org>
Sent: Saturday, November 29, 2014 4:09 PM
Subject: Re: foam in DEC SBB drives, ok to remove?
> On Sun, Nov 30, 2014 at 3:51 AM, Fred Cisin <cisin at xenosoft.com> wrote:
>> Not only does it get crumbly, there is sometimes an intermediate stage
>> where it smells like vinegar, and is a strong acid.
> ick! thanks for the tip, will get right on it.
> The most egregious use of foam I've encountered was in a token ring
> hub, where a block of foam was use to support the small PCB which ran
> the width of the hub. The PCB held the relays that sit behind the
> sockets, of course with the foam atomized the PCB was swinging around
> on the wires.
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