has anyone experimented with this on parts? when dealing with dirty
equipment?
if so what works best for liquid sulutions?
ive got a shelf of 15in bass drivers.... and some amps thinking of building
something to clean some audio boards i aquired on the cheap though maybe
some folks here would have some ideas?
PDP-8/e Panel Variants
I now have a list of _possible_ (not actual) variations.
Its not quite the same as what I had before.
In addition I have heard there may be colour variations in some cases.
A is the current shipping version
A No dividing lines between lamp groups
Position 1 and 6 on select switch vertical
B Dividing lines between lamp groups
Position 1 and 6 on select switch vertical
C No dividing lines between lamp groups
Position 1 and 6 on select switch angled
D Dividing lines between lamp groups
Position 1 and 6 on select switch angled
As these only involve artwork and silk screen frame changes I can use
the same plexiglas blanks for them
Whats the next most popular PDP-8 after the /e? Any ideas ?
Rod
John - Ref your 8S below - Happy to add this to the list.
any other good background info as to prior users etc?
yes if you can get the S/N will add that.
I need to get the S/N of the SMECC one too I will have to take 3
helpers over to warehouse to exhume it.
I will also get the S/N on the classic 8 in blue cabinet (alas
missing its front desk) heck I may just try to fit that in the Mini Room at
the museum too with the glassed in cards table top that is there.
There is also a spare front panel assembly for a straight 8 there that I
remember putting there 20 years ago
may have crack in corner way towards edge though and has switches
cables etc... No promises but it should be there ( an no promises how
log it will be to get it out!).. Is there anyone out there that needs
this assembly?
something totally off topic from the 8S machines there are some
trs80 radio shack things that are huge like the MODEL 2 was but these were
later and had a 3 number designator ? there are many as I remember one
will be kept another kept for offsite displays but the others will
goooooooo........
sorry to do so many messages in the 8S topic thread tonight but I was
asleep for a day with massive migraine and am trying to catch up.
Ed#
In a message dated 6/12/2015 3:47:07 A.M. US Mountain Standard Time,
wilson at dbit.com writes:
Didn't see mine on there. PDP-8/S, serial # unknown (it's in storage),
needs restoration. I got it in Michigan about 20 years ago.
John Wilson
D Bit
From: Sean Caron <scaron at umich.edu>
>
>I dunno, guys, that might be a little paranoid ... a lot of this
>stuff is big and heavy ... I just can't imagine a thief coming
>in and carting away PDP-11s, VAX-11s, RP/RL/TU drives,
>IBM mainframes, whole racks and the like
>
Nope. My wife used to work in commercial real estate. The building supers
that she was managing money for *routinely* had multi-hundred-pound to
multi-ton thefts of copper and other resalable material, often ripped out
of walls over the course of hours or days. Size/weight are *not* a deterrent to
a guy who is willing to steal an industrial air conditioning unit with a
meth-head buddy, a couple of strap wenches and a beat up pickup truck cart
it away in.
Now imagine I tell that same meth-head that I'd pay him 5 times as much as
scrap rates to steal something like what he's used to stealing, probably
better packaged, but in a residence (no security guards).
A touch of paranoia is apropos.
KJ
?
So I have a bunch of older DEC slides (for BA11 boxes, RK05's, etc) which are
rusty. No problem, I have a sand-blaster, but.... what's the grey coating on
them, and how do I reproduce it once I have them clean?
I saw Corey Cohen's really wonderful presentation at VCFE about restoring old
computers, and afterwards I asked him if he knew anything, and he said that
(from my description - alas, I didn't think to show him one in the display
area) it sounded like a powder coat thing, and that people who do brake
calipers can do power coating.
However, when I went to my car guy for pointers to local people who do brake
calipers, he looked at the coating, scraped at it a bit with a knife, and said
it didn't look like powder coat to him. (Although maybe this is a very old
powder coat, and he's only used to the newer stuff.) He reckoned it was just
grey paint {visualize dubious-looking Noel - it sure doesn't look like paint
to me}.
So, what _is_ that grey coating - and, more important, how (if at all) can it
be reproduced these days?
Noel
Yes that is what was used... and yes too much is bad.. beryllium is way worse
. William Hansen at varian died from itEd# ?
Sent from my Verizon Wireless 4G LTE smartphone
-------- 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
>
Yes I use it in Leica cameras in artic weather...... but is that what gives the slides that anodized look
Sent from my Verizon Wireless 4G LTE smartphone
-------- Original message --------
From: William Donzelli <wdonzelli at gmail.com>
Date: 06/13/2015 2:29 PM (GMT-07:00)
To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>
Subject: Re: Coating on older DEC slides
Specifically molybdenum disulphide, sometimes called Molycoat. It is
for lubrication on high load surfaces.
--
Will
On Sat, Jun 13, 2015 at 4:37 PM, Al? Kossow <aek at bitsavers.org> wrote:
> On 6/13/15 8:20 AM, Noel Chiappa wrote:
>>
>> what's the grey coating on
>> them
>
>
> molybdenum
>
>
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
