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101090 discussions

First VAX-11/730 VMS Boot! (was: Re: VAX-11/730 %BOOT-F-Unexpected Machine Check)

by cctalk＠beyondthepale.ie

> > Thanks! I'll look up all of those commands to understand them better. > > ^Y looks familiar. I think this is the second time I have learned about it. :) > > > > On Jun 13, 2015, at 18:40, Jerry Weiss <jsw at ieee.org> wrote: > > > > If you are running backup and it is asking for additional tapes, then I believe you can do the following > > > > ^Y > > $spawn > > $ > > $reply/enable=all > > > Another way is to log on a second time using a terminal other than the console, issue reply/enable and then reply to the messages you receive there. Yet another way is to use BACKUP /NOASSIST - this should avoid issueing OPCOM messages and prompt the issuer of the BACKUP command directly when tapes are to be changed and so on. The standard way of doing backups on VMS is to submit a BACKUP command in a batch job. The operator would normally be logged in interactively and would respond to the OPCOM messages from the batch job and deal with tape mounts. This requires a suitable batch queue to be set up and started. Regards, Peter Coghlan.

11 years, 1 month

ultra sonic washing

by tdk.knight＠gmail.com

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?

11 years, 1 month

Front Panel Tech Note No3

by rodsmallwood52＠btinternet.com

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

11 years, 1 month

SIO2SD for Atari 8-bits - Just got one.

by COURYHOUSE＠aol.com

that is neat where can we get one!? In a message dated 6/13/2015 4:28:28 P.M. US Mountain Standard Time, terry at webweavers.co.nz writes: I'm in awe of people who can build and design these devices http://www.classic-computers.org.nz/blog/2015-06-13-sio2sd-for-atari.htm Terry (Tez)

11 years, 1 month

PDP-8/S

by COURYHOUSE＠aol.com

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

11 years, 1 month

PDP-8/S

by seefriek＠gmail.com

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 ?

11 years, 1 month

Coating on older DEC slides

by jnc＠mercury.lcs.mit.edu

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

11 years, 1 month

SIO2SD for Atari 8-bits - Just got one.

by terry＠webweavers.co.nz

I'm in awe of people who can build and design these devices http://www.classic-computers.org.nz/blog/2015-06-13-sio2sd-for-atari.htm Terry (Tez)

11 years, 1 month

Coating on older DEC slides

by couryhouse＠aol.com

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 >

11 years, 1 month

Coating on older DEC slides

by couryhouse＠aol.com

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 > >

11 years, 1 month

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