test-drb

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101090 discussions

by jon＠jonworld.com

Hey everyone! Has anyone been able to use a SCSI2SD setup where HVD is required? I know by default that isn't supported, but given we can get custom kits to solder, we could just change out one of the controller chips (optimistically?) Cheers! -- -Jon +44 7792 149029

4 years, 1 month

Anyone out there with a working Victor 9000 (US only)?

by david4602＠gmail.com

On 10/1/21 1:00 PM, Chuck Guzis<cclist at sydex.com> wrote: > Got a small batch (8) of Victor 9000 floppies, MSDOS ca. 1985. I > really don't want to write a decoder for such a small batch--I've got > other things on the burner right now. Anyone want to take a crack at > transferring the data? (Funds available). > > --Chuck I don't have a Victor (looked for one for a while, and man, are they heavy) because I have a couple of large-ish batch of disks here as well. I read them and have "triangular," Chuck Peddle-esque images, but not sure how to get something like mtools to understand a triangular image. So I understand the motivation to just Kermit the files over to something more sane. :-) - David

4 years, 1 month

Getting files from HP 3000 tapes (was: Re: HP 2000 TSB and FORTRAN)

by sieler＠allegro.com

Ed writes: ?If? we? ever? ?get? a? way? to? read? tapes? ? for? the? 2000 and? 3000? Well, we can "read" tapes for the HP 3000, and restore the files from HP 3000 backup tapes ... via Allegro Consultant's "ROSETTA STORE" product (of which I'm the primary author). I'm happy to restore some files for fellow collectors/enthusiasts (as time/energy permits) for free. The problem breaks down into two parts: 1. reading the tape Although Rosetta can read from a physical tape drive, that capability hasn't been tested for a decade (because of loss of hardware). Every user we know of uses Rosetta to restore files from tape images. There are a number of formats of tape images ... quite a number. Rosetta understands many tape image formats, including: AWS / HET STORE-to-disk SIMH Stromasys tape image Tapecopy format (Data Conversion Resources) (Oddly, I think it doesn't understand Allegro's own proprietary tape image format, which records a lot more information than others (e.g., read-retry information).) If you need an HP 3000 'STORE' tape recovered, and it's in a different format, let me know. 2. extracting files from the tape image Rosetta can read Classic HP 3000 STORE tapes (aka "CM STORE") of various versions, and MPE/iX STORE tapes (aka "NM STORE") of various versions (although 'interleave' has been tested only very lightly). By "read" I mean that it extracts the desired files, converts some (with some controls), and creates either a hierarchical directory structure matching the original, or a flattened one. What about IMAGE databases? On some platforms (Linux, HP-UX, Windows (?)), IMAGE databases can be converted to Eloquence databases (Eloquence is a product of Marxmeier software). On all platforms, IMAGE databases can be converted to .csv or .xml files. It can also handle SLT tapes, and provide some information on a few other kinds of tapes one might see from an HP 3000 (e.g., dump tapes, Serial Disc images), SPOOK tapes. Rosetta runs on Mac, Linux, HP-UX, and Windows. The HP-UX version can read older versions of ORBiT's Online Backup tapes (before they changed the tape record header format) TL;DR Ed: for the 3000, it's essentially a solved problem, and has been for over 20 years! Note: I also have a utility to restore files from (older?) Burroughs mainframe (e.g., B6700) backup tapes.

4 years, 1 month

Smecc hp 2000 enclosed in glass being used as a backdrop for phx business journal cio of the year award. [PDF]Back to the Futuremedia.bizj.us/view/archive/phoenix/pdf/CIOs 2012 Final.pdf

by couryhouse＠aol.com

http://media.bizj.us/view/archive/phoenix/pdf/CIOs%202012%20Final.pdf Sent from the all new AOL app for Android

4 years, 1 month

Ken Gielow passed away

by w9gb＠icloud.com

Ken Gielow sold his Z80DIS (Z80 disassembler) for CP/M 80 as shareware ($20) thru his Butler, PA firm (SLR Systems), until the end of the 1980s. I left Slippery Rock (just north of Butler) in the summer 1983 (about time of release). ? Info World, October 24, 1983 Software Review by Steve Mann https://books.google.com/books?id=rS8EAAAAMBAJ&pg=PA40&lpg=PA41&dq=Z80DIS&s… greg == Date: Wed, 17 Nov 2021 17:23:06 -0800 From: Stan Sieler <sieler at allegro.com> To: "General Discussion: On/Off-Topic Posts" <cctalk at classiccmp.org> Subject: Ken Gielow passed away Last week, Ken Gielow passed away. He was the author of the Z80DIS disassembler, which was both interactive and used a form of "artificial intelligence" to cleverly disassemble Z80 code.

4 years, 1 month

IEEE-488 on the PDP-11

by dj.taylor4＠comcast.net

In my pile of DEC computer stuff I have a DEC qbus IBV11 IEEE-488 controller board (M7954) with cable (BN11-A) that connects to the GPIB bus. It would be interesting to try this out, but I don't have the DEC 'Instrument Bus Subroutines' that work under RT-11.? Does anyone have this package?? Or know where it can be found? Doug

4 years, 1 month

Tektronix 4051/4052/4054 GPIB IEEE-488 Flash Drive

by mmcgraw74＠gmail.com

I saw the recent posts on IEEE-488 on the PDP-11, and Christian's post on his Commodore GPIB floppy drive connection to the Tektronix 4051. I have been working for a couple of years on a GPIB/IEEE-488 Flash Drive for the Tektronix 4051, 4052 and 4054 computers, and am getting close to completion. My Tektronix 4050 GPIB Flash Drive emulates the Tektronix 4924 Tape Drive, which is supported by all the 4050 computers using secondary GPIB addresses for commands. This allows the flash drive to be used without needing an option ROM Pack. In particular, 4051 ROM Packs are not compatible with the 4052/4054 ROM Packs as the 4051 used a Motorola 6800 CPU and the 4052/4054 used a Tektronix custom 16-bit bit-slice CPU in order to improve performance 10x and double the memory capacity from 32KB to 64KB. The 4050 GPIB Flash Drive design uses an Arduino directly connected to my custom interface PCB with the GPIB connector, and a micro SD Flash board. I picked the 644-Narrow Arduino board by Pandauino as it has the Atmega644 processor which has twice the flash and RAM as the Arduino Nano and also has 5V I/O which can interface without buffers to the Tektronix 4050 GPIB port. The current code takes 40912 bytes of flash and 2798 bytes of RAM (more than the Nano) and supports PRINT, INPUT, READ, WRITE, OLD, SAVE, BOLD, and BSAVE. These commands have been tested on my 4052 and 4054A and my software development partner's 4051 computer. The flash drive also adds two secondary address commands not supported by the 4924: HEADER and CD. We are using the Arduino FAT32 library which supports long filenames, and create the filename to match the Tektronix tape file header format which includes a file number, file type (ASCII, BINARY, NEW or LAST), data type (PROGRAM or DATA) and the file size. We also take advantage of the extra spaces in that format to insert the file name as a comment - like the Tektronix 4050 BASIC program to add comments to the file header. The CD command is for changing the directory in the microSD card, and allows multiple different Tektronix 4050 DC300 tapes that I have recovered and posted on my github repository: https://github.com/mmcgraw74/Tektronix-4051-4052-4054-Program-Files to be stored in separate directories - while maintaining the original tape file numbers. More info and photos in my project thread on vcfed.org: https://www.vcfed.org/forum/forum/genres/other/64990-tektronix-405x-gpib-fl… Monty McGraw

4 years, 1 month

Manual, Amiga, Broadcast Titler 2

by ethan＠757.org

Anyone have the manual for the Amiga software Broadcast Titler 2? If so, can I scan it and return it to you? Thanks - Ethan -- : Ethan O'Toole

4 years, 1 month

HP 3056DL - looking for system tape image

by ce.murillosanchez＠gmail.com

Hello everyone; The HP 3056DL was a datalogger consisting of an HP3421 and an HP85B; I bought one many years ago and that's how I got my HP85B and one of my HP3421's. I never restored the tape drive since I had an HP9121 floppy drive available early on (I still have it but it is in need of repair). The 3056DL? came with the manual, but without the tape containing the datalogging software.? Now that I am a happy owner of an EBTKS board, I am looking for an image of the original system tape for the 3056DL.? Does anybody have it by chance? Regards, Carlos.

4 years, 1 month

Apple cube cleaning

by jnc＠mercury.lcs.mit.edu

> rom: Paul Koning > WD-40 is a good solvent to use for adhesives stuck to plastic. It's > unlikely to hurt the plastic but it will soften the glue. My go-to solvent for non-ionized glue residues (use water for ionized) on all sorts of materials has been, for many years, mineral spirits (US name; 'white spirit', in the UK): https://en.wikipedia.org/wiki/White_spirit It scores highly on both i) 'doesn't harm underlying material' and ii) 'softens residues' axes. (I've mostly used it on books, to remove stickers, but my experience should transfer to use on computers.) > As always, check on a hidden part of the case to make sure the > particular plastic doesn't object to the stuff you're using. Sage, and important, advice for _any_ removal method. Noel

4 years, 1 month

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