Coating on older DEC slides - test-drb@ccmp.vtda.org

13 Jun 2015

Yes that is what was used... and yes too much is bad.. beryllium is way worse
. William Hansen at varian died from itEd# ?

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-------- Original message --------
From: Rod Smallwood <rodsmallwood52 at btinternet.com> 
Date: 06/13/2015  2:23 PM  (GMT-07:00) 
To: General at classiccmp.org, "Discussion at classiccmp.org:On-Topic and Off-Topic
Posts" <cctalk at classiccmp.org> 
Subject: Re: Coating on older DEC slides 

Ever looked at an old radio chassis?
They had what I was led to believe was a grey cadium plating over the steel

The boxes BA11-ES and the like had I think a coat ing was some kind of 
Nickel
My 11/34A has a greyish coating on the tiltable runners.

On 13/06/2015 21:35, COURYHOUSE at aol.com wrote:
...
  cadmium not? good? for? you... beryllium is? even?
worse!
?? 
 Ed#
?? 
?? 
 In a message dated 6/13/2015 12:51:52 P.M. US Mountain Standard Time,
 rodsmallwood52 at btinternet.com writes:

 It might? be cadmium

 On 13/06/2015 16:45, John Wilson wrote:
  On Sat,? Jun 13, 2015 at 11:20:19AM -0400, Noel
Chiappa wrote:
> So, what? _is_ that grey coating - and, more important, how (if at all)  can?
it
   be
reproduced these days?  Wild guess:? some kind? of oxide?? I agree that it
doesn't look like paint
 or powder? coat.

 John Wilson
 D? Bit 