test-drb

test-drb@ccmp.vtda.org

101090 discussions

by mark＠markesystems.com

I've got quite a stack (more than a dozen) first-generation DOS laptops that are headed for the recycler unless someone wants them. They re mostly Toshiba T-1000 or T1000SE units, but there's a Tandy in there also, and probably a another outlier or two. There are also a few Portege's running Win-95, and a few fabric laptop cases. At one time all of these worked (obviously), but I'm sure that most don't now, for various reasons. A few may have been cannibalized a bit, but for the most part all the parts are there. I'm not looking for any cash for these, but I don't want to pay anything (like shipping) either, especially since the electronics recycler is less than three miles from my house. If anyone wants to pick these up (I'm in San Carlos, near Redwood City, CA), or wants to pay me to ship them (at cost only), let me know. At the end of this week (01-Oct-2016), they'll be gone... ~~ Mark Moulding -----Original Message----- From: cctalk-request at classiccmp.org Sent: Sunday, September 25, 2016 10:00 AM To: cctalk at classiccmp.org Subject: cctalk Digest, Vol 27, Issue 24 Send cctalk mailing list submissions to cctalk at classiccmp.org To subscribe or unsubscribe via the World Wide Web, visit http://www.classiccmp.org/mailman/listinfo/cctalk or, via email, send a message with subject or body 'help' to cctalk-request at classiccmp.org You can reach the person managing the list at cctalk-owner at classiccmp.org When replying, please edit your Subject line so it is more specific than "Re: Contents of cctalk digest..." Today's Topics: 1. MSI Texscan SpectraGen SG4B (Jim Brain) 2. Re: DEC TC11 maindec listings? (Al Kossow) 3. Re: DEC TC11 maindec listings? (Don North) 4. Re: DEC TC11 maindec listings? (Mattis Lind) 5. Electronic surplus in the southwest (William Maddox) 6. Re: Decoding kryoflux stream for HP9895A (Eric Smith) 7. AC Filter Cap Brand Recommendations (Craig Ruff) 8. Re: AC Filter Cap Brand Recommendations (Peter Cetinski) 9. Re: AC Filter Cap Brand Recommendations (Chuck Guzis) 10. Digital Storage Architecture - Media Format (Rob Jarratt) ---------------------------------------------------------------------- Message: 1 Date: Sat, 24 Sep 2016 19:50:56 -0500 From: Jim Brain <brain at jbrain.com> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: MSI Texscan SpectraGen SG4B Message-ID: <b689fdda-69db-57fd-9874-67476dd62c26 at jbrain.com> Content-Type: text/plain; charset=utf-8; format=flowed I know it's a long shot, but does anyone have a manual for a SpectraGen 4B Video Title Generator? I am trying to resurrect one, and it seems to be a Z80-based unit. Jim -- Jim Brain brain at jbrain.com www.jbrain.com ------------------------------ Message: 2 Date: Sat, 24 Sep 2016 20:32:57 -0700 From: Al Kossow <aek at bitsavers.org> To: cctalk at classiccmp.org Subject: Re: DEC TC11 maindec listings? Message-ID: <1fe8bb6e-28bd-c997-c52c-f6ddb9e26b98 at bitsavers.org> Content-Type: text/plain; charset=utf-8 I had it on fiche, which I scanned this afternoon. It should be up on the bitsavers mirrors by morning PDT under pdp11/xxdp along with rev E of the XXDP+ users guide. I'll probably also do the RX02 diags if I can find them for Don, though he may have them on fiche. The step and repeat fiche scanner isn't on line yet so I used the Canon manual positioning one. It's tedious, and it gets out of focus easily, but they are better than nothing. On 9/21/16 12:38 PM, Mattis Lind wrote: > I have been looking for TC11 maindec listings in the usual places, but > didn't find any. I think they should be named ZTCA, ZTCB, ZTCC, ZTCD and > ZTCE. > > Does anyone know of an online location or happen to have an offline paper > original? > > /Mattis > ------------------------------ Message: 3 Date: Sat, 24 Sep 2016 21:08:19 -0700 From: Don North <north at alum.mit.edu> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: DEC TC11 maindec listings? Message-ID: <90d93153-2109-0f5f-6b1e-c1d4daa7a83b at alum.mit.edu> Content-Type: text/plain; charset=utf-8; format=flowed On 9/24/2016 8:32 PM, Al Kossow wrote: > I had it on fiche, which I scanned this afternoon. > It should be up on the bitsavers mirrors by morning PDT under pdp11/xxdp > along with rev E of the XXDP+ users guide. > > I'll probably also do the RX02 diags if I can find them for Don, though > he may have them on fiche. I was able to get ZRXDC0, ZRZEA0, and ZRXFB0 listings from the fiche images on http://www.retrocmp.com/tools/pdp-11-diagnostic-database so I am fine for RX02 diagnostics listings. Don > The step and repeat fiche scanner isn't on line yet so I used the Canon > manual positioning one. It's tedious, and it gets out of focus easily, but > they are better than nothing. > > > On 9/21/16 12:38 PM, Mattis Lind wrote: >> I have been looking for TC11 maindec listings in the usual places, but >> didn't find any. I think they should be named ZTCA, ZTCB, ZTCC, ZTCD and >> ZTCE. >> >> Does anyone know of an online location or happen to have an offline paper >> original? >> >> /Mattis >> > ------------------------------ Message: 4 Date: Sun, 25 Sep 2016 07:53:58 +0200 From: Mattis Lind <mattislind at gmail.com> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: DEC TC11 maindec listings? Message-ID: <CABr82SJWUVc7HURrEhaLoL7A7CEo4kPyAp+Hhfk3Z87MhaZjvA at mail.gmail.com> Content-Type: text/plain; charset=UTF-8 2016-09-25 5:32 GMT+02:00 Al Kossow <aek at bitsavers.org>: > I had it on fiche, which I scanned this afternoon. > It should be up on the bitsavers mirrors by morning PDT under pdp11/xxdp > along with rev E of the XXDP+ users guide. > Exactly what I needed! Thanks a lot Al! /Mattis > > I'll probably also do the RX02 diags if I can find them for Don, though > he may have them on fiche. > > The step and repeat fiche scanner isn't on line yet so I used the Canon > manual positioning one. It's tedious, and it gets out of focus easily, but > they are better than nothing. > > > On 9/21/16 12:38 PM, Mattis Lind wrote: > > I have been looking for TC11 maindec listings in the usual places, but > > didn't find any. I think they should be named ZTCA, ZTCB, ZTCC, ZTCD and > > ZTCE. > > > > Does anyone know of an online location or happen to have an offline > > paper > > original? > > > > /Mattis > > > > ------------------------------ Message: 5 Date: Sun, 25 Sep 2016 06:41:16 +0000 (UTC) From: William Maddox <wmaddox at pacbell.net> To: "cctalk at classiccmp.org" <cctalk at classiccmp.org> Subject: Electronic surplus in the southwest Message-ID: <166539568.4256917.1474785676417 at mail.yahoo.com> Content-Type: text/plain; charset=UTF-8 I will be visiting Albuquerque, Phoenix, Tucson, and various points nearby and in-between shortly.Any recommendations on electronics surplus and junk shops to check out? ?Some of the most famous, like the Black Hole in Los Alamos are long gone. ?Any other must-see attractions for the classic computer geek? --Bill ------------------------------ Message: 6 Date: Sun, 25 Sep 2016 02:32:34 -0600 From: Eric Smith <spacewar at gmail.com> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: Decoding kryoflux stream for HP9895A Message-ID: <CAFrGgTT31V-4HPpJU1_9TXVyMMebOd3A9mW3oSEtKZWoQxxExw at mail.gmail.com> Content-Type: text/plain; charset=UTF-8 On Tue, Sep 20, 2016 at 7:42 AM, Denise de Vries <denise.devries at flinders.edu.au> wrote: > Does anyone know of documentation for the HP9895A format with its own M2FM > encoding? > I have a kryoflux preservation stream but so far can make no sense of it. On Wed, Sep 21, 2016 at 12:59 AM, Christian Corti <cc at informatik.uni-stuttgart.de> wrote: > I've already written a decoder for the HP 9885/9895 format. Denise already > sent me his image, but I haven't had the time to try decoding it yet... Denise sent me the image as well. dfitoimd has now been renamed to fluxtoimd, as it now supports both DiscFerret and KryoFlux image input. I've partially added HP M2FM format; it now correctly decodes the address fields, but I have a bit more work to do on the data fields. I expect to have it completed tomorrow. > - 0xD0: ECC data address mark Any idea how they use that? Aside from that being included in the list of address marks in the service manuals, it's not described at all. Since the 7902/9885/9895 don't do ECC, perhaps it was reserved for future use. ------------------------------ Message: 7 Date: Sat, 24 Sep 2016 21:31:23 -0600 From: Craig Ruff <cruff at ruffspot.net> To: cctech at classiccmp.org Subject: AC Filter Cap Brand Recommendations Message-ID: <AE56D6F8-11C3-457E-A464-5709245849D8 at ruffspot.net> Content-Type: text/plain; charset=utf-8 Wouldn?t you know it, the same day I decide to order a ribbon and some paper for my HP 82905B (aka Epson MX80) printer, the AC line filter cap (C1 on the MFIL board), expelled its magic smoke rather impressively. After some cleanup, the printer has been banished to the garage until the smell diminishes. It appears to be a 250 V, 0.1 ?F X type. What manufacturers have good reliability for this application, in your opinion? ------------------------------ Message: 8 Date: Sat, 24 Sep 2016 23:38:08 -0400 From: Peter Cetinski <pete at pski.net> To: "General Discussion: On-Topic Posts" <cctech at classiccmp.org> Subject: Re: AC Filter Cap Brand Recommendations Message-ID: <35029F98-7F90-405F-85E9-3611BE2DF2BC at pski.net> Content-Type: text/plain; charset=utf-8 On Sep 24, 2016, at 11:31 PM, Craig Ruff <cruff at ruffspot.net> wrote: > > Wouldn?t you know it, the same day I decide to order a ribbon and some > paper for my HP 82905B (aka Epson MX80) printer, the AC line filter cap > (C1 on the MFIL board), expelled its magic smoke rather impressively. > After some cleanup, the printer has been banished to the garage until the > smell diminishes. It appears to be a 250 V, 0.1 ?F X type. What > manufacturers have good reliability for this application, in your opinion? That?s a common item on Tandy power supplies so I?ve replaced a lot of these. I?ve used this replacement numerous times with great success. https://www.digikey.com/product-detail/en/kemet/PMR209MC6100M047R30/399-751… <https://www.digikey.com/product-detail/en/kemet/PMR209MC6100M047R30/399-751…> ------------------------------ Message: 9 Date: Sat, 24 Sep 2016 22:58:53 -0700 From: Chuck Guzis <cclist at sydex.com> To: "General Discussion: On-Topic Posts" <cctech at classiccmp.org> Subject: Re: AC Filter Cap Brand Recommendations Message-ID: <e7b74d80-ceab-4a41-2b31-4a367667b52b at sydex.com> Content-Type: text/plain; charset=utf-8 On 09/24/2016 08:31 PM, Craig Ruff wrote: > Wouldn?t you know it, the same day I decide to order a ribbon and > some paper for my HP 82905B (aka Epson MX80) printer, the AC line > filter cap (C1 on the MFIL board), expelled its magic smoke rather > impressively. After some cleanup, the printer has been banished to > the garage until the smell diminishes. It appears to be a 250 V, 0.1 > ?F X type. What manufacturers have good reliability for this > application, in your opinion? > Any of the major brands should be good--Kemet, Panasonic,.. --Chuck ------------------------------ Message: 10 Date: Sun, 25 Sep 2016 13:30:36 +0100 From: "Rob Jarratt" <robert.jarratt at ntlworld.com> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Digital Storage Architecture - Media Format Message-ID: <00b601d21728$9f1eeb20$dd5cc160$(a)ntlworld.com> Content-Type: text/plain; charset="us-ascii" The VMS documentation mentions specification for the Digital Storage Architecture that cover media formats. I have looked at the DSA folder on bitsavers and cannot see any document that covers media formats. Is this documentation available anywhere? Thanks Rob End of cctalk Digest, Vol 27, Issue 24 **************************************

9 years, 8 months

DEC TC11 maindec listings?

by mattislind＠gmail.com

I have been looking for TC11 maindec listings in the usual places, but didn't find any. I think they should be named ZTCA, ZTCB, ZTCC, ZTCD and ZTCE. Does anyone know of an online location or happen to have an offline paper original? /Mattis

9 years, 8 months

Digital Storage Architecture - Media Format

by robert.jarratt＠ntlworld.com

The VMS documentation mentions specification for the Digital Storage Architecture that cover media formats. I have looked at the DSA folder on bitsavers and cannot see any document that covers media formats. Is this documentation available anywhere? Thanks Rob

9 years, 8 months

Electronic surplus in the southwest

by wmaddox＠pacbell.net

I will be visiting Albuquerque, Phoenix, Tucson, and various points nearby and in-between shortly.Any recommendations on electronics surplus and junk shops to check out? ?Some of the most famous, like the Black Hole in Los Alamos are long gone. ?Any other must-see attractions for the classic computer geek? --Bill

9 years, 8 months

AC Filter Cap Brand Recommendations

by cruff＠ruffspot.net

Wouldn?t you know it, the same day I decide to order a ribbon and some paper for my HP 82905B (aka Epson MX80) printer, the AC line filter cap (C1 on the MFIL board), expelled its magic smoke rather impressively. After some cleanup, the printer has been banished to the garage until the smell diminishes. It appears to be a 250 V, 0.1 ?F X type. What manufacturers have good reliability for this application, in your opinion?

9 years, 8 months

MSI Texscan SpectraGen SG4B

by brain＠jbrain.com

I know it's a long shot, but does anyone have a manual for a SpectraGen 4B Video Title Generator? I am trying to resurrect one, and it seems to be a Z80-based unit. Jim -- Jim Brain brain at jbrain.com www.jbrain.com

9 years, 8 months

HP 7970B/E Tape Unit manual available

by jnc＠mercury.lcs.mit.edu

Hi, all, I have a HP 7970B/E Tape Unit Diagrams and Parts Manual available; I got it with a group of other manuals, and I don't have any use for it. I'd prefer to get something in return for it (some PDP-11 manual/print I don't have, or something), but mostly I want to get this into the hands of someone who can actually use it (it's already on Bitsavers, so it doesn't fill a lacuna). Noel

9 years, 8 months

Short test programs for pdp 11/34

by jnc＠mercury.lcs.mit.edu

> From: J?rg Hoppe > I'm talking of that data path check up after power-on. Huh, I never knew about that. (The manuals don't mention it.) I was just last night looking at the microccode for the 11/04 (a very similar machine - they share the front consoles, etc), and it doesn't have anything like that (see the /04 power on ucode at pg. 130 of EK-KD11D-TM-PRE). Looking through that /34 ucode flow diagram, I discovered that the /34 supported the M[FT]PS instuctions - I thought that was only the QBUS CPU's, etc. Live and learn! :-) Noel

9 years, 8 months

Short test programs for pdp 11/34

by jnc＠mercury.lcs.mit.edu

> From: Devin Davison >> If the machine HALTs on power-up, some micro coded diagnostic failed There are no microcoded diagnostics in the 11/34. The boot ROMs do contain minimal CPU and memory diagnostics. > using pdp11gui to load the dec diagnostics sounds like the way to go. The CPU and UNIBUS have to be basically working for the boot ROMs (and the console emulator they provide via the console serial line) to work; ditto for PDP11GUI. Note that the console emulator will work without working memory, provided the correct boot option (console emulator without diagnostics) is configured on the card that holds the boot ROMs. You won't, of course, be able to load anything without working memory. And the Programmer's Console doesn't require working memory either, and a lot less of the CPU working - the CPU only has to respond to HALT requests from the console. (I had one /04 - very similar to the /34, uses the same front console - which didn't run because there was a bit stuck on in all the registers - but the console still worked.) It does require the UNIBUS not to be wedged, though. Noel

9 years, 8 months

Seeking docs and schematic for Novation CAT modem

by ethan.dicks＠gmail.com

Hi, All, Good seeing many of you at VCF-midwest. One of my scores was an Atari-badged Novation CAT modem. Digging around for any docs, what I'm mostly finding is lots of info about Novations Apple II products, and scant mention with thumbnail pictures of the original CAT acoustic coupler, that and dozens of sites copying the Wikipedia article. Anyone have any CAT info? I can reverse-engineer the schematic, but if that's already been done, no reason for me to redocument the wheel. I know it wants a 20VAC 400mA PSU, but I want to check how strict that is (i.e., 18VAC @ 500mA or 24 VAC @ 350 mA, for example, which may be easier to find than an unregulated 20VAC PSU). I would love to play with a CBM 8010 (since I have so many PETs) but I do happen to have a couple of IEEE-488 to RS-232 devices, which will work fine with this Atari 830/Novation CAT. -ethan

9 years, 8 months

Jump to page:

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

2001

2000

1999

1998

1997

test-drb