Re: I want these computers from Myrtlebeach, NC - seller won't ship.

First try to find someone on the list. Then if the seller wont ship, will s/he take them to a pack and ship outfit ? I've packed and shiped for people and my only "charge" is you do the same someday. My desire to keep this stuff running is to me worth the hour or two and the few $'s it costs.

Re: recent ebay lot of assorted ICs - did somebody on the list win this?

On Aug 9, 2017, at 5:06 AM, Alan Hightower via cctech wrote: > Will 310 ROMs work in a 300? I believe 310, 400, 600, and 1000 ROMs are > posted in Seth's emulator project's git hub. If not, I can resend them. Sort of. The machine will POST and you can use, for example, the standalone

Re: Disk imaging with IMD - question

Mike -- I gave Bill Degnan the backstory in another thread but in short, I'm working on restoring VCF's Seattle Gazelle. It uses a DSDD drive system, although the original drives are still at Infoage. I have the original Seattle disks. The system was shelved in the mid-1990's. I have the

PDP-11/84 Bootstrap for TSV05 (Dilog DU142)

Hi All, I have some trouble to get the Bootstrap for an Dilog DU142 (TS11) Controller running on my PDP-11/84. The bootstrap on page 3-2 of the following documentation was used: http://bitsavers.informatik.uni-stuttgart.de/pdf/dilog/2120-0090-1_DU142_Jul87.pdf That's, what I have saved to the

Re: PDP-8I acrylic Front Panel

id be interested in a cast copy of a 8i my self On Wed, Aug 9, 2017 at 1:15 AM, Rod Smallwood via cctalk < cctalk@classiccmp.org> wrote: > > > On 08/08/2017 21:43, Ray Neal via cctalk wrote: > >> Rod; >> >> I'm looking for a PDP-8I acrylic Front Panel for my replica PDP-8I I'm >> putting

I want these computers from Myrtlebeach, NC - seller won't ship.

Early 90's pen systems. https://myrtlebeach.craigslist.org/sop/6225365248.html

Re: Disk imaging with IMD - question

On 08/09/2017 03:06 PM, Fred Cisin via cctalk wrote: > Yes. > It is not clear whether the issue is with the disks, or with the > hardware setup. Again, maybe I'm reading too much into the comments, but I thought that Rich had formatted a floppy using IMD and verified using the Analyze function.

Re: Disk imaging with IMD - question

Will do. These 242 drives are NOS and I have several. I'll swap them too. Lots to do this weekend! Rich Sent from Verizon/AOL Mobile Mail On Wednesday, August 9, 2017, Chuck Guzis via cctalk wrote: There's also the possibility that the drive alignment is so far out

Re: Disk imaging with IMD - question

I think I have a Cromemco 16FDC laying around. Might be able to put a quick S100 Z80 system together. Rich Sent from Verizon/AOL Mobile Mail On Wednesday, August 9, 2017, Fred Cisin wrote: On Wed, 9 Aug 2017, rich.c...@verizon.net wrote: > Hmmm. I might have. CW in my

Re: Disk imaging with IMD - question

On Wed, 9 Aug 2017, Chuck Guzis via cctalk wrote: There's also the possibility that the drive alignment is so far out of whack that you're not seeing the data on the SCP disks. This is unlikely in drives that haven't been diddled with, but unless you bought the drive NOS, you don't know that.

Re: pdp-8/e restoration.

> From: Philipp Hachtmann > The DEC stuff was designed quite wrong-insertion resistant. > ... > I did it. Once. It leads to impressive fireworks on many boards. I managed to plug in an M9301 backwards, once. Luckily, most of the other boards came through OK (I think I lost one

Re: Disk imaging with IMD - question

There's also the possibility that the drive alignment is so far out of whack that you're not seeing the data on the SCP disks. This is unlikely in drives that haven't been diddled with, but unless you bought the drive NOS, you don't know that. Grab a known-good 8" floppy--the format doesn't

Re: Disk imaging with IMD - question

On Wed, 9 Aug 2017, rich.c...@verizon.net wrote: Hmmm. I might have. CW in my storage area. Good idea. I don't know the version of if I have the software. Let me look later. Great idea. alternatively, do you have ANY computer with 8" drive and WD 179x controller? It's not too big a deal to

Re: Disk imaging with IMD - question

On 08/09/2017 01:47 PM, Fred Cisin via cctalk wrote: > That is SO compatible with the NEC 765 chips that I'm going to CALL it > an NEC chip. > I wonder if has the same "flash-blind" behavior following index? > I'll go out on a limb saying that I think that it will NOT give you any > chaange from

Re: Disk imaging with IMD - question

Hmmm. I might have. CW in my storage area. Good idea. I don't know the version of if I have the software. Let me look later. Great idea. Rich Sent from Verizon/AOL Mobile Mail On Wednesday, August 9, 2017, Fred Cisin wrote: On Wed, 9 Aug 2017, Mike Stein via cctalk

Re: Disk imaging with IMD - question

On Wed, 9 Aug 2017, Mike Stein via cctalk wrote: Interesting reading here under disk formats: https://en.wikipedia.org/wiki/86-DOS Sounds like there were two Tarbell controllers, single and double density but both single-sided ? NO https://en.wikipedia.org/wiki/86-DOS#Disk_formats includes a

Re: Disk imaging with IMD - question

On 08/09/2017 01:29 PM, Richard Cini via cctalk wrote: > I don't have the screen print handy but if you look on Dave Dunfield's site > under Disk/Software he has a controller registry. I'm using the Adaptec > AHA-1522A which uses the National DP8437AV chip. That should work with most common

Re: Disk imaging with IMD - question

On Wed, 9 Aug 2017, Richard Cini via cctalk wrote: Thanks Fred. The Adaptec controller I'm using has a NatSemi controller and passes all IMD tests. I have an SBC floating around with a WD37xx chip so maybe I'll try that this weekend. That is SO compatible with the NEC 765 chips that I'm going

Re: Disk imaging with IMD - question

I don't have the screen print handy but if you look on Dave Dunfield's site under Disk/Software he has a controller registry. I'm using the Adaptec AHA-1522A which uses the National DP8437AV chip. Rich Sent from Verizon/AOL Mobile Mail On Wednesday, August 9, 2017, Chuck Guzis via cctalk

Re: Disk imaging with IMD - question

Thanks Fred. The Adaptec controller I'm using has a NatSemi controller and passes all IMD tests. I have an SBC floating around with a WD37xx chip so maybe I'll try that this weekend. Rich Sent from Verizon/AOL Mobile Mail On Wednesday, August 9, 2017, Fred Cisin via cctalk

Re: Disk imaging with IMD - question

There's a way to make the disk more compatible by changing the media ID byte, but I don't even need that right now. I'd have to pull the manual but I believe the TDD is one or two sided. Rich Sent from Verizon/AOL Mobile Mail On Wednesday, August 9, 2017, Mike Stein

Re: Disk imaging with IMD - question

On 08/09/2017 12:41 PM, Fred Cisin via cctalk wrote: > My naming convention is flawed. I think that at one point Western > Digital made an "NEC compatible" controller, that isn't what I call > "wd-style" Yup, the WD37C65. Anyone need any? I've got a tubeful that I'm never going to use. Used

Re: Disk imaging with IMD - question

On Wed, 9 Aug 2017, Mike Stein via cctalk wrote: Interesting reading here under disk formats: https://en.wikipedia.org/wiki/86-DOS Sounds like there were two Tarbell controllers, single and double density but both single-sided ? Also sounds like the FAT12 disk formats were not quite MS-DOS

Re: Disk imaging with IMD - question

If you can use IMD to format both FM and MFM at 500Kbps on your 242--and "Analyze" reads the format okay, your SCP disks aren't probably standard IBM 3740 or System/3 type diskettes. They could be in a proprietary recording format, such as Intel MMFM or Futuredata GCR. On Wed, 9 Aug 2017,

Re: Disk imaging with IMD - question

Interesting reading here under disk formats: https://en.wikipedia.org/wiki/86-DOS Sounds like there were two Tarbell controllers, single and double density but both single-sided ? Also sounds like the FAT12 disk formats were not quite MS-DOS compatible... m - Original Message - From:

The Name of the disk (Was: Disk imaging with IMD - question

The structure used on most diskette tracks is based on an IBM design (3740, etc.), and was referred to as "IBM format". BUT, the general public think that "IBM" means the machines that followed the 5150, so "IBM format" is oft misconstrued to mean PC. To avoid ambiguity, I sometimes call

Re: Disk imaging with IMD - question

Thanks Chuck. The Gazelle uses the Tarbell DD controller which uses a 1793 which I believe is 3742 and s/34 compatible. Rich Sent from Verizon/AOL Mobile Mail On Wednesday, August 9, 2017, Chuck Guzis via cctalk wrote: On 08/09/2017 10:57 AM, Richard Cini via cctalk

Re: Disk imaging with IMD - question

On 08/09/2017 10:57 AM, Richard Cini via cctalk wrote: > "DON'T ASSUME..." AS THEY SAY ON TV. I'M OK WITH THE ADDITIONAL CLARITY. > SINCE YOU HAVE A WORKING 242, WOULD YOU MIND CONFIRMING THE JUMPER SETTINGS > FOR ME? JUST TRYING TO ELIMINATE AS MANY POTENTIAL ERROR POINTS. I had a look and a

Re: RX8 M8357 Device address.

On 09/08/2017 17:31, Al Kossow via cctalk wrote: it is device code 75 http://homepage.divms.uiowa.edu/~jones/pdp8/man/rx01.html On 8/9/17 9:24 AM, Al Kossow via cctalk wrote: On 8/9/17 9:23 AM, Josh Dersch wrote: The manual I linked contains configuration details for the RX01, RX8E and

Re: Disk imaging with IMD - question

See below. Hopefully inline works. I'm not shouting, just using caps. Rich Sent from Verizon/AOL Mobile Mail On Wednesday, August 9, 2017, Chuck Guzis via cctalk wrote: On 08/09/2017 09:52 AM, Richard Cini via cctalk wrote: > It's funny -- I didn't see the original

Re: Disk imaging with IMD - question

On 08/09/2017 09:52 AM, Richard Cini via cctalk wrote: > It's funny -- I didn't see the original reply from Bill to this > message. > > I am aware of the track differences and I thought Dos would format > it but just slam the head for the last three tracks. No such luck. It > actually complains

Re: Disk imaging with IMD - question

Bill -- the drive and disks are double-sided double density. Are you saying that's quad density? I may try a different host setup again. I have five different computers that passed the testfdc program with varying levels of success, although none with single-density. Rich Sent from

Re: Disk imaging with IMD - question

NOTE - I was able to make a bootable 8" DOS 6.22 disk even though it slammed the last three tracks, on my imaging computer. The computer thought it was writing to a 1.2M 5 1/4 disk. BUT you're saying a quad density SS disk. I never tried that and if you say it does not work then I can't dispute

Re: Disk imaging with IMD - question

It's funny -- I didn't see the original reply from Bill to this message. I am aware of the track differences and I thought Dos would format it but just slam the head for the last three tracks. No such luck. It actually complains about the disk from the beginning. The Qume 242 is a DSDD

Re: RX8 M8357 Device address.

it is device code 75 http://homepage.divms.uiowa.edu/~jones/pdp8/man/rx01.html On 8/9/17 9:24 AM, Al Kossow via cctalk wrote: > > > On 8/9/17 9:23 AM, Josh Dersch wrote: > >> The manual I linked contains configuration details for the RX01, RX8E and >> RX11. See page 2-10. > > > yea,

Re: RX8 M8357 Device address.

On 8/9/17 9:23 AM, Josh Dersch wrote: > The manual I linked contains configuration details for the RX01, RX8E and > RX11. See page 2-10. yea, just pulled the manual and realized that, sorry.

Re: RX8 M8357 Device address.

On Wed, Aug 9, 2017 at 9:16 AM, Al Kossow via cctalk wrote: > > > On 8/9/17 8:32 AM, Josh Dersch via cctalk wrote: > > On Wed, Aug 9, 2017 at 8:00 AM, Rod Smallwood via cctalk < > > cctalk@classiccmp.org> wrote: > > > >> Hi Lis > >> > >> It looks like RX8 SEL is not

Re: RX8 M8357 Device address.

On 8/9/17 8:32 AM, Josh Dersch via cctalk wrote: > On Wed, Aug 9, 2017 at 8:00 AM, Rod Smallwood via cctalk < > cctalk@classiccmp.org> wrote: > >> Hi Lis >> >> It looks like RX8 SEL is not asserted due to the device address not being >> set up on the DIP switches. >> >> Anybody know what they

Re: RX8 M8357 Device address.

On Wed, Aug 9, 2017 at 8:00 AM, Rod Smallwood via cctalk < cctalk@classiccmp.org> wrote: > Hi Lis > > It looks like RX8 SEL is not asserted due to the device address not being > set up on the DIP switches. > > Anybody know what they should be set to in terms of switch number, > depressed/not

Re: Disk imaging with IMD - question

On 08/09/2017 01:41 AM, william degnan wrote: > How about booting into dos and just formatting a disk that way? Go back and read what I wrote, Bill. If single-sided media is being used, DOS formatting will fail as there is no single-sided high-density format available. Of course, if

RX8 M8357 Device address.

Hi Lis It looks like RX8 SEL is not asserted due to the device address not being set up on the DIP switches. Anybody know what they should be set to in terms of switch number, depressed/not depressed on side with numbers. Rod -- Wanted one pdp-8/i rocker switch leaver to copy.

Re: recent ebay lot of assorted ICs - did somebody on the list win this?

Will 310 ROMs work in a 300? I believe 310, 400, 600, and 1000 ROMs are posted in Seth's emulator project's git hub. If not, I can resend them. -Alan On 2017-08-08 20:48, r.stricklin via cctalk wrote: > Folks; > > I keep meaning to ask... a couple months ago, there was an eBay auction

Re: ISO: Honeywell DPS-6 things

I lost my cctalk/tech so I read online. I saved some documents here http://oldcomputers.dyndns.org/public/pub/rechner/honeywell/manuals/index.html -- Best Regards Mit freundlichen Grüssen Fritz

Re: Disk imaging with IMD - question

On Aug 9, 2017 1:34 AM, "Chuck Guzis via cctalk" wrote: > > Quick question, Rich--what kind of media are you using to test by > formatting to 1.2MB? > > If they're SS media (as indicated by the position of the index > aperture), your drive will probably barf if you try to

Re: ftp.compaq.com mirror

On Tue, 8 Aug 2017, Adrian Graham wrote: of the whole ftp site but it?s 220gb and I?m not sure my little 150mb/s web connection will download that in less than a month :) You should think about the proper usage of units... If "gb" is gigabytes, then "mb" is megabytes. With a 150 megabytes/s

Re: PDP-8s that was EBAY.. what is the other rack? Thought TTY inf in main box?

On 8/8/2017 9:35 PM, Jon Elson via cctalk wrote: 8 **S** Arrgh! The worst computer DEC ever made! It was a real speed demon, when compared to computers with vacuum tubes and drum memory! Jon The EE department had an 8S which I wish I could have gotten my hands on (UMR). I had both

Re: PDP-8s that was EBAY.. what is the other rack? Thought TTY inf in main box?

In a message dated 8/8/2017 9:35:14 P.M. US Mountain Standard Time, el...@pico-systems.com writes: On 08/08/2017 10:51 PM, Ed via cctalk wrote: > PDP-8s that was EBAY.. what is the other rack? Thought TTY inf. in main > box? > >

Re: PDP-8I acrylic Front Panel

On 08/08/2017 21:43, Ray Neal via cctalk wrote: Rod; I'm looking for a PDP-8I acrylic Front Panel for my replica PDP-8I I'm putting together. I have a PCB board created by Vince and in between Hospital stays I have been able to populate it. The next step is to either locate a frame or to