test-drb June 2016

test-drb@ccmp.vtda.org

196 participants
290 discussions

2 x Sparcstation LX and Ultra Enterprise 2 available in Sweden.

by mattislind＠gmail.com

Hello. Someone left us a couple of Sparctstation LX and a Ultra Enterprise 2 that we are not being able to take care of. The Ultra Enterprise 2 has 2 CPUs 200 MHz and 256 Mbyte RAM according to a sticker on it. The Sparctstation LX configuration is unknown. I haven't tested any of these items so the condition is unknown. There are also a number of SCSI hard disk boxes. If some one has a pair of slides that fit the DEC BA11-A box (PDP-11/44 or VAX 8200?), or a floor stand for a DEC BA23 or DEC VR290 and want some Sparcstations I would be very interested in a trade. Otherwise it is free to a good home. Preference for local pickup. Shipping can be quite expensive. The location is Sweden. /Mattis

7 years, 11 months

11/94

by rodsmallwood52＠btinternet.com

Hi I now have screen shots showing the screwed up monitor program. Good pics but 11Mb can anybody take attachments that big. Rod

7 years, 11 months

Decmate II

by pdaguytom＠gmail.com

Hello all, I've got a Decmate II that has a keyboard issue. I've tested with a LK401 that I use with my Rainbow 100 system, keyboard works fine with the Rainbow but gives a error 48 with the Decmate. I've had a look at the motherboard, tracing pins 14 & 15 from the db15 connector to a series of what looks to me to be picofuses. Testing these in circuit with a multimeter, 4 of these "picofuses" show a resistance of approx. 530 ohms and the remaining 2 appear to be open. Anyone have any experience with these? Are these really picofuses? Any insights would be appreciated. Tom

7 years, 11 months

Mechanalog systems

by rodsmallwood52＠btinternet.com

Hi All I saw a video about the systems used in 1950's and 1960's bombers for navigation and bomb aiming. I think they could be classed as a computer even lacking a stored program. I just wondered if anybody had collected or restored such equipment. I once heard an old retired SAC US Air force guy describe them as a "box of cogs". Boy was he right Rod Smallwood

7 years, 11 months

PDP-11/94-E

by jnc＠mercury.lcs.mit.edu

> From: Rod Smallwood > if you try to get it to boot it says no controller to every device > except DD and that says no drive Hmm, I wonder if that's a clue. Ah, probably not: 'DD' means 'TU58', which is interfaced through a standard serial line (DL11 clone), and the standard device location for the TU58's serial line is 776500, which is the standard address for the first serial line, and since the 11/94 has a bunch of serial lines, the code probably thinks there's a TU58 there. But there isn't... > I cant get it to go into ODT to look at the registers. If you look in the "PDP-11/84 System Technical and Reference Manual" (EK-1184E-TM-001), available here: http://bitsavers.org/pdf/dec/pdp11/1184/EK-1184E-TM-001_Dec87.pdf Section 3.7 lists several ways to get into ODT. In addition to those, if you look at Section 3.2.2, it allows you to configure the machine to fall into ODT on power-on (section B gives details). > From: Henk Gooijen > The first 4 (5?) slots are QBUS Technically, PMI, which is more-or-less QBUS on the left (A/B) side (modulo not having grants, unless the appropriate backplane jumpers are set to send grants to those slots), and it uses the standard CD interconnect (as in Q/CD backplanes) on the right (C/D) side to carry PMI. > The RX211 must have the NPR/NPG open. Check the documention which DIP > switch must be set in the correct position. However, not sure if that > would cause the RX211 to be "invisible". Right; DMA would not work, but normal master/slave UNIBUS read/write cycles to the device registers should still work. > Can you check the RX211 in another UNIBUS system? See whether its CSR > responds. Another good test would be to plug a known working UNIBUS card into the 11/94, and check if the CPU can 'see' it. > Also, check the configuration of the RX211. It might be set to a > different CSR ... Yup. Noel

7 years, 11 months

Ohio company with opening in Portland OR

by pete＠petelancashire.com

https://sherwin.taleo.net/careersection/10/jobdetail.ftl

7 years, 11 months

Scraping DEC Equipment

by dm561＠torfree.net

----- Original Message ----- > Date: Sun, 22 May 2011 22:56:32 -0500 > From: Daniel Seagraves <dseagrav at lunar-tokyo.net> > Subject: Re: Scraping DEC Equipment > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Message-ID: <C7A98127-DFF4-41B1-A6AF-5DFCA234D286 at lunar-tokyo.net> > Content-Type: text/plain; charset=us-ascii > > I need a tractor feed assembly for a LA100, are the ones on the 120 > compatible? ----- Reply: Apparently not, but I might have one for an LA100. mike

7 years, 11 months

Beehive B601 terminal

by COURYHOUSE＠aol.com

need to see a photo always looking for the beige upper case only hives~ I force people that whine about SHOUTING to use them for an hour.... Ed In a message dated 6/1/2016 9:12:18 A.M. US Mountain Standard Time, cclist at sydex.com writes: On 06/01/2016 08:24 AM, tony duell wrote: > Does anyone know anything about this? Does anyone > have a service manual for it? Internally, it sounds about the same as the veneered and generated Super Bee from the early-mid 1970s. I don't see any manuals for it on bitsavers, however. --Chuck

7 years, 11 months

Decmate II

by pdaguytom＠gmail.com

I've got a Decmate II that has a keyboard issue. I've tested with a LK401 that I use with my Rainbow 100 system, keyboard works fine with the Rainbow but gives a error 48 with the Decmate. I've had a look at the motherboard, tracing pins 14 & 15 from the db15 connector to a series of what looks to me to be picofuses. Testing these in circuit with a multimeter, 4 of these "picofuses" show a resistance of approx. 530 ohms and the remaining 2 appear to be open. Anyone have any experience with these? Are these really picofuses? Any insights would be appreciated. Tom

7 years, 11 months

TU58 yet one more time

by shadoooo＠gmail.com

Hello, I would need some clarification about the Plastibands, as I will have to find a suitable replacement for the belt, as ALL my cartridges need a replacement, after removing the old one without causing the infamous blank-spot. Al, please could you clarify which size / brand of (Baumgarten) plastibands did you use for the TU58 cassette? Mark, I'm not sure that a wider belt would work better, maybe worse. In fact pulley / belt mechanisms usually work with pulleys that have a bigger diameter near the center than on the sides, resulting slightly convex. Because of physical friction forces, an "unbiased" flat belt will always remain exactly in the center of the pulleys. If a cylindrical pulley will be used, this effect will not be present, so the belt will slide off the pulleys. On TU58 as in DC100 tapes AFAIK the belt is narrow, maybe abound the half the width of the pulleys. Thanks Andrea > I tried using plastibands in a TU58 cartridge, with zero success. Once stretched, the width of the plastiband was too narrow, and > it kept on slipping off the edge of the tape spool and jamming things up thoroughly. These are the ones I tried using: > http://www.amazon.com/Baumgartens-8-inch-Plastibands-BAUSF5000-Assorted/dp/… > I think they might have worked if they were at least twice as wide, at around the same circumference. Is there a different type > available that might work better?

7 years, 11 months

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test-drb June 2016