- vcf-midatlantic - lists.vcfed.org

Unknown Sperry Univac Display Boards
by Systems Glitch 01 Jul '16

01 Jul '16

I picked up three Sperry Univac boards in a lot of scrap the other day: http://imgur.com/a/9BBQ0 The first image is representative of two of the boards. They are heavily built, conformally coated, and the one in the second picture has an aerospace type connector in one place. The displays are HP LED hex displays (or a second source). The aluminum frame around the board appears to be a heatsink for the displays and a few of the ICs. Does anyone know what these are? I was going to remove the displays from the boards for use in other projects, but I don't want to destroy them if they're useful to someone else. Thanks, Jonathan

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Re: [vcf-midatlantic] SOT 10base-5 LAN parts
by VAXman＠tmesis.org 30 Jun '16

30 Jun '16

Evan Koblentz via vcf-midatlantic writes: >>> How do you envision it being installed in our current space? For >examp= le, would we need to hang a cable ladder from the ceiling so >wires can co= nnect the minicomputer area to where our router will be in >the workshop a= rea? (Looks will matter, given that we're a museum, not >a lab.) > >Another question is, what's the advantage to connecting some of the >minis= to the Internet? We can't keep that sort of equipment running >24/7. Power and process cooling woould be the major impediments; otherwise, just consideration for the wear and tear on the old kit. As for the cabling, I prefer to see the overhead cable conduit approach.

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Re: [vcf-midatlantic] SOT 10base-5 LAN parts
by VAXman＠tmesis.org 30 Jun '16

30 Jun '16

Evan Koblentz via vcf-midatlantic writes: >>> Can't help with the install, but can contribute then to the Museum >cau= se. > >Hold off. There is no active project. It's only an idea. I know that I've told you that when Camp Evans was active there was etherpipe strung in most all of the buildings and I know who strung it. ;) Who=Me!

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Re: [vcf-midatlantic] Update - museum internet access
by VAXman＠tmesis.org 30 Jun '16

30 Jun '16

Dave McGuire via vcf-midatlantic writes: >On 06/30/2016 04:29 PM, Brian Schenkenberger via vcf-midatlantic wrote: >>> On 06/30/2016 03:38 PM, Joseph Oprysko via vcf-midatlantic wrote: > >But >> I thought SneakerNet was the primary network protocol when the >machines >>> were in their prime. >> >> Good heavens no. Even PDP-8s >had DECnet over serial lines. > > DDCMP! > > As God intended. I'd occasionally fire up DDCMP over a modem link to some clients to transfer files back in the day. Indexed files mostly which don't take kindly to being ZIPped and UNZIPped and FTPd; albeit, current version of ZIP/UNZIP do have a switch to maintain VMS file attributes making it possible now.

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Re: [vcf-midatlantic] Need a couple AUI cables - building 10base-5 LAN
by VAXman＠tmesis.org 30 Jun '16

30 Jun '16

Jim Scheef via vcf-midatlantic writes: >Hello all, Please forgive my infrequent lurking. For those who do not >know me (most = of you) I'm the guy who helps Kelly in the consignment >room at VCF-E = each year.=20 I've decided to build a 10base-5 LAN >segment in my basement. Right now = I'm in the collecting the parts >stage and need 2 or 3 AUI cables no more = than 2 meters long. They must >have that arcane DB-15 connector with the = sliding clip.=20 I also need >two N-connector terminators (50 ohm, of course). So far I have a three >short lengths of real ether hose with N-connectors = and three Cabletron >ST-500 transceivers (2 more would be nice). = Unfortunately these have a >BNC connector where the vampire tap should = be, so I'm working on >that.=20 In the meantime, some short, good AUI cables would be a big >boost. I = will be happy to pay reasonable price plus shipping. Anyone? > >Longer term, would it not be cool if our museum had a working 10base-5 = >LAN hanging from the rafters providing connectivity between the Vaxen, = >PDPs and other period machines? Maybe even to the inter-tubes! And a large etherhose!

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Vintage (yes really) Cisco router/TS
by Neil Cherry 30 Jun '16

30 Jun '16

For the folks who know what this is ... I have a Cisco AGS 9.1 or 10.x IOS (technically a terminal server, that can route) that support the normal terminal services such as telnet and LAT. If you are interested please contact me. I'm not using it and this might be useful for a display or the museum. -- Linux Home Automation Neil Cherry ncherry(a)linuxha.com http://www.linuxha.com/ Main site http://linuxha.blogspot.com/ My HA Blog Author of: Linux Smart Homes For Dummies

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Re: [vcf-midatlantic] Update - museum internet access
by VAXman＠tmesis.org 30 Jun '16

30 Jun '16

Dave McGuire via vcf-midatlantic writes: >On 06/30/2016 03:38 PM, Joseph Oprysko via vcf-midatlantic wrote: > But >I thought SneakerNet was the primary network protocol when the machines >> were in their prime. > > Good heavens no. Even PDP-8s had DECnet over serial lines. DDCMP!

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IBM MLR3-25GB tape cartridges available
by Mike Loewen 30 Jun '16

30 Jun '16

A friend of mine has 9 NIB IBM MLR3-25GB (SLR50) data cartridges. They're labeled "Servo Written", "Compatible: QIC5210 DC, MLR3 SLR50 Drives)". I don't know what he wants for them, but it wouldn't be much. If you need any, let me know and I'll put you in touch with him. Mike Loewen mloewen(a)cpumagic.scol.pa.us Old Technology http://q7.neurotica.com/Oldtech/

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Anniversary of transistor day
by Jeffrey Brace 30 Jun '16

30 Jun '16

Was at InfoAge today and Fred mentioned this and said the transistor was developed at Camp Evans first (in secret). He mentioned a book: Crystal Fire Birth of the Information Age Book - p. 162, 201. - Jeff Brace

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Update - museum internet access
by Evan Koblentz 30 Jun '16

30 Jun '16

We ordered a modem/router gadget from a company called Mobile Citizen. They sell low-priced wireless Internet access exclusively to non-profits. We got a desktop version (still has wifi built in), not the mobile hotspot described on their web site. This means we don't have to rely on InfoAge for Internet access in the museum. Also, it is a very good deal: you buy the modem and then only pay ten bucks a month for service. The hardware arrived recently and we will install it soon.

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