dkelvey at hotmail.com
Sun Oct 11 21:05:58 CDT 2020
Most components can stand soldering temperatures. It is clear that it was only hot enough to melt plastics. That isn't even hot enough to damage boards. It is wasn't powered at the same time, it is unlikely to have been harmed. I've seen cases where there were flames in the board area and parts were not damaged. These were mostly wrapped in their cases. Melted plastics most likely protected the boards from dangerous temperatures.
From: cctalk <cctalk-bounces at classiccmp.org> on behalf of jim stephens via cctalk <cctalk at classiccmp.org>
Sent: Sunday, October 11, 2020 6:49 PM
To: William Donzelli via cctalk <cctalk at classiccmp.org>
Subject: Re: FIRE SALE!
On 10/11/2020 6:34 PM, William Donzelli via cctalk wrote:
>> I suspect much of the electronics is fine. It would be good for someone wanting backup cards.
> You must be joking. Those cards are done. Any chip that is still
> operational will likely fail upon or shortly after power is applied.
I agree. Especially the ones heated high enough for the melted plastic
or scorch damage. A radiative and convective heat soak is pretty damaging.
Consider the flow temperature of the materials inside. Unless the fire
was flash fire, the entire thing would have been heated for some amount
of time (15 minutes minimum usually, to 45 minutes) due to response time
of the equipment.
Not evident in the photos would be possible contamination from either
fire suppressant materials or water to extinguish the blaze.
Like I said, Ethan is looking for a cabinet for an 11/70 stripped out of
such, and these probably are okay for that. Maybe some of the other
bits after inspectiong, but I'd not trust the boards up front. It would
be a project I'd want a solid shop of parts to do testing for every
board involved to certify they work.
Most people I know have one system in their basement, lab or garage, and
I'd personally not want to put boards from a source like this into such,
unless i had nothing to lose.
More information about the cctalk