View Profile: jafir - Vintage Computer Forum

Today, 07:46 AM

jafir replied to a thread Writing disk images to real disks. This is largely Superbrain related but... in CP/M and MP/M

The DEC Rainbow used single sided floppies at 96tpi, for 400K, so it's certainly been done.

18 replies | 677 view(s)

January 24th, 2021, 08:12 PM

jafir replied to a thread 3Com 3C501 (or similar) Driver in PCs and Clones

Sorry to breathe life into a long dead thread, but I just picked up one of these cards, complete in the box. The box was a little tatty, but when I...

5 replies | 1518 view(s)

January 23rd, 2021, 09:41 PM

jafir replied to a thread Brother CRT with IBM 5710 in PCs and Clones

Not with that card. That’s the IBM CGA card, and it won’t work with an MDA style monitor. There are some non-IBM cards that do though. Or you can get...

7 replies | 164 view(s)

January 23rd, 2021, 05:50 PM

jafir replied to a thread Brother CRT with IBM 5710 in PCs and Clones

Color graphics monochrome? Does your card have 1501985XM on it? If so that’s an MDA card. Mono, non-graphics. I’ve heard the Brother CRTs are...

7 replies | 164 view(s)

January 19th, 2021, 10:25 AM

jafir replied to a thread What is this? Post Photos of Mystery Items Here (vintage computers only) in General Vintage Computer Discussions

Very interesting. Thanks to everyone that answered. Well I doubt I’ll ever own anything that needs this so I’m going to pass it along to someone...

114 replies | 73853 view(s)

January 18th, 2021, 06:39 PM

jafir replied to a thread What is this? Post Photos of Mystery Items Here (vintage computers only) in General Vintage Computer Discussions

It’s in a box marked SASI-HDC. Googling SASI suggests it was a predecessor for SCSI. What would this card be for?

114 replies | 73853 view(s)

January 18th, 2021, 04:00 PM

jafir replied to a thread ST-225 compatible MFM Hard Drive controller in Vintage Computer Items Wanted

I’ve got an extra WD1002S-WX2. It’s got a wide bracket so it might be for 5150 or an early clone.

4 replies | 94 view(s)

January 17th, 2021, 05:02 AM

jafir replied to a thread IBM 5150 / 5160 half height mount bracket + Other in Vintage Computer Items Wanted

https://iec.net/product/dual-drive-mounting-bracket-for-systems-designed-for-1-full-height-5-25-inch-drive/

2 replies | 71 view(s)

January 14th, 2021, 09:31 PM

jafir replied to a thread Radio Shack Tandy TRS-80 Color Computer 2 - Model #26-3026 - AS IS in Vintage Computer Items For Sale or Trade

$75 is pretty steep for a coco2, even if working condition. For a broken one it's silly :)

11 replies | 307 view(s)

January 14th, 2021, 05:53 PM

jafir replied to a thread Getting an 8" FDD working with an IBM 5170? in PCs and Clones

The chassis should support two of each. One full height HDD on the left side, two half height floppy drives and one half height HDD on the right...

14 replies | 267 view(s)

January 13th, 2021, 07:14 AM

jafir replied to a thread Installing an OS on a P166 without floppy drive in Vintage Computer Hardware

I've had pretty good luck using a real computer with a real hard drive and floppy drive to install an OS, and then using Ghost for DOS to create an...

15 replies | 295 view(s)

January 13th, 2021, 07:09 AM

jafir replied to a thread Ibm bus & tag in Minis and Mainframes

It feels like half the guys I work with were at StorageTek at some point. I think the Sun and then Oracle takeovers caused a lot of changes to their...

9 replies | 279 view(s)

January 12th, 2021, 08:53 AM

jafir replied to a thread Forum search terms - am I missing something? in General Off Topic

Most forums have a minimum character limit for searching, to keep from overwhelming the servers. KIM is too short.

3 replies | 154 view(s)

January 11th, 2021, 07:26 PM

jafir replied to a thread Is hard disk failure because of HDD 0 having 2 partitions and HDD 1 having 1: 2+1=3? in Vintage Computer Hardware

Here is a manual that was with a NOS ST-251-1 that I have: ...

14 replies | 369 view(s)

January 11th, 2021, 06:51 PM

jafir replied to a thread Is hard disk failure because of HDD 0 having 2 partitions and HDD 1 having 1: 2+1=3? in Vintage Computer Hardware

The BIOS won’t care about partitions on the drive. Do you have the drive select jumpers set correctly for each drive? Does only the last drive...

14 replies | 369 view(s)

January 11th, 2021, 01:42 PM

jafir replied to a thread Civ for Windows 3.1 - status bar in Vintage Computer Software

Have you tried the shortcut keys alt-spacebar or alt-hyphen?

9 replies | 211 view(s)

January 10th, 2021, 06:16 PM

jafir replied to a thread File manager PC Shell 5.5 not seeing files where they actually are in Vintage Computer Software

It’s not compression. It’s a defragger with a name that didn’t age well.

6 replies | 207 view(s)

January 10th, 2021, 05:39 PM

jafir replied to a thread Picked up an IBM 5150. Keeping it original or upgrade ? in PCs and Clones

Are the Magnetic Peripherals, Inc. IBM branded full height drives any better?

14 replies | 536 view(s)

January 8th, 2021, 08:28 AM

jafir replied to a thread Has a game ever used the IBM 5151's "long" P39 phosphor to get around charset limits? in PCs and Clones

Does the compaq VDU do this when in CGA mode? And if so, then does the deskpro with it's Amber CRT vs the Portable with a Green CRT have this...

22 replies | 877 view(s)

January 7th, 2021, 12:18 PM

jafir replied to a thread The Compaq Deskpro 8086, finally! in PCs and Clones

My issue is that I always hit enter when trying to hit backslash. I have trouble with XT keyboards too these days, even though that's what I started...

19 replies | 731 view(s)

January 7th, 2021, 08:24 AM

jafir replied to a thread The Compaq Deskpro 8086, finally! in PCs and Clones

There are a couple of keyboards on ebay right now, but they are both around $100, before shipping. I've been tempted to put in a really low offer,...

19 replies | 731 view(s)

January 6th, 2021, 01:56 PM

jafir replied to a thread What do you think the minimal vintage system would be that can run HTTP over TLS? in General Vintage Computer Discussions

Are there any proxy servers that can do TLS to the world and then translate to SSL or even nothing at all for the private network? I've tried to...

9 replies | 477 view(s)

January 6th, 2021, 10:22 AM

jafir replied to a thread Writing Mac 800kB disks in Later Apple (68000+ based machines - Mac, Lisa, etc.)

I've definitely written 400K and 800K mac floppies with a kryoflux and a standard PC drive. Sometimes they are a little flakey, but usually I can...

29 replies | 1138 view(s)

January 6th, 2021, 10:12 AM

jafir replied to a thread The Compaq Deskpro 8086, finally! in PCs and Clones

The correct keyboard seems to be hard to find and is pretty pricy, but I'm pretty sure the "compaq enhanced keyboard" should work with it, although...

19 replies | 731 view(s)

January 4th, 2021, 09:17 PM

jafir replied to a thread problems with Adaptec AHA-1520 and SCSI on 286 in PCs and Clones

I don’t think you’re going to be able to load a driver before you boot :) That’s what the boot bios is for.

13 replies | 543 view(s)

January 4th, 2021, 05:49 PM

jafir replied to a thread problems with Adaptec AHA-1520 and SCSI on 286 in PCs and Clones

The manual says you cannot boot from the drive with the AL jumper in place: http://download.adaptec.com/pdfs/user_guides/aha1520a_ug.pdf But...

13 replies | 543 view(s)

January 2nd, 2021, 08:43 AM

jafir replied to a thread Seagate ST01 SCSI controller (8K) 3.2 firmware? in Vintage Computer Hardware

According to this: ftp://ftp.seagate.com/techsuppt/controllers/st01-02.txt The 16K version is a different PCB layout. That’s unfortunate, because...

5 replies | 286 view(s)

December 31st, 2020, 11:07 AM

jafir replied to a thread Diagnostic and Benchmark Tools? in PCs and Clones

There is version 4 that was bundled with wincheckit: https://winworldpc.com/product/wincheckit/40

6 replies | 423 view(s)

December 30th, 2020, 06:33 PM

jafir replied to a thread Got my first Amiga, it has issues in Commodore

The manual for the deluxe option board says it can copy amiga disks, but I would wonder where you’d find the images you need in transcopy format. ...

16 replies | 699 view(s)

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