test-drb March 2017

test-drb@ccmp.vtda.org

188 participants
235 discussions

by kspt.tor＠gmail.com

On 24 March 2017 at 16:34, Alexandre Souza via cctalk <cctalk at classiccmp.org> wrote: > Well...there is some description in english, google translate is a very > useful tool and the post has a pertinent video. I cannot view it as spam. > Anyway...sorry for bothering :) > > Enviado do meu Tele-Movel > > On Mar 24, 2017 12:25 PM, "Paul Koning" <paulkoning at comcast.net> wrote: > >> It sure has the signature of spam. A link to some random place, without >> explanation of what it is, text in Portuguese when the list uses English... Your spam-o-meter isn't accurate.. mine didn't trigger. It isn't spam, so it's clearly functional. Subject is 'Reparando um Vectrex', which hardly needs any additional translation. Body said 'New post on blog'. Blog looks good. Poster is Alexandre, old-timer on the list. All items ticked OK, all good.

7 years, 8 months

MC68K's on DEUNA's

by jnc＠mercury.lcs.mit.edu

> From: Bill Gunshannon > I doubt Motorolla was in the business of custom making different size > chips, even for DEC. So, that triggered a question in my mind: why was DEC using the 68K on this board, anyway? They had plenty of in-house chips the could have used, e.g. the J11. The MC68000 had only a 16-bit bus, so it's not that dissimilar in capabilities. Why buy out? Did Motorola offer them a price they couldn't resist, or what? Noel

7 years, 8 months

Wanted: AT&T 3B2 Ethernet Card ROM images

by lists＠loomcom.com

I'm trying to track down ROM images from AT&T 3B2 expansion cards. I've started with the EPORTS serial card, which I have. What I'd love to find is the ROM from the NI Ethernet card. Not all ROMs were socketed. Freqently they were soldered, so I know that getting these probably won't be easy. If I had an NI card of my own I'd desolder the ROMs, but alas, I do not. If you have these ROMs, are willing to image them, or -- and this is a real long shot -- if you're willing to let me borrow a card for a while, I'd greatly appreciate hearing from you. Best Wishes, -Seth -- Seth Morabito web at loomcom.com

7 years, 9 months

booting os/8

by w2hx＠w2hx.com

Hi folks, I have a PDP-8/e that I've been working on. I have completed construction of AK6DN's RX01/02 emulator. I got to the step tonight where I was trying to boot an OS/8 disk image and nothing was happening. I realized that I do not have the bootstrap diode board in my 8/e so begin the bootstrap triggered by the "SW" switch. Does anyone have the program I can toggle in for the bootloader? What I found is somewhat confusing. Here is a discussion on this topic. https://groups.google.com/forum/#!searchin/alt.sys.pdp8/RX01$20boot|sort:re… It seems one fellow was attempting to edit/improve the bootloader of another fellow. I was wondering if anyone has distilled this into something simple. At the moment, I care only about booting from RX01-Disk0. Any pointers greatly appreciated. Thanks Eugene W2HX

7 years, 9 months

For Sale: STM Pied Piper "Portable Computer"

by sellam.ismail＠gmail.com

I have for sale this fine STM Pied Piper, Z80 CP/M machine from Canada circa 1983. Please see details here: http://www.vcfed.org/forum/showthread.php?56872-STM-Pied-Piper-Portable-Com… Thanks! Sellam

7 years, 9 months

Re: Extracting files off “unknown” 8 inch disks. Any thoughts…

by barythrin＠gmail.com

For the record, I and I'm sure lots of others look forward to this blog of experience. -------- Original message --------From: Terry Stewart via cctalk <cctalk at classiccmp.org> One other question regarding using this MS-DOS 486 to run an 8 inch floppu

7 years, 9 months

MC68K's on DEUNA's

by jnc＠mercury.lcs.mit.edu

So all the DEUNA's I've seen have L10 (ceramic package, 10Mhz) 68K's in them. Has anyone tried using anything else, and did it work? I _assume_ an x12 would work, but until someone has acutally tried it... The Pxx's (plastic packaging) might not work - according to the datasheet, they are 2mm wider than the ceramics (why, I have no idea - it probably means they aren't interchangeable, which makes no sense at all to me). Noel

7 years, 9 months

GImix Ghost Video Board

by vintagecomputer＠bettercomputing.net

No.. mine has a 2513 character generator.. the one in the ad uses ram based character generation. ?Based on IC dates my board looks like mid to late 70s.. a fair bit earlier than that one. Sent from my Samsung device -------- Original message -------- From: dave.g4ugm at gmail.com Date: 2017-03-24 2:16 AM (GMT-08:00) To: 'Brad H' <vintagecomputer at bettercomputing.net>, "'General Discussion: On-Topic and Off-Topic Posts'" <cctalk at classiccmp.org> Subject: RE: GImix Ghost Video Board Is it one that's in the catalogue here:- http://bitsavers.trailing-edge.com/pdf/gimix/Gimix_Catalog_Jun82.pdf Dave > -----Original Message----- > From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Brad H via > cctalk > Sent: 23 March 2017 23:58 > To: 'General Discussion: On-Topic and Off-Topic Posts' > <cctalk at classiccmp.org> > Subject: GImix Ghost Video Board > > Hoping someone might be able to help me on this. > > > > I got a Gimix Ghost SS50 video board today and was trying to find a manual. > I'm sure these were used in Gimix's own ghost systems but the very limited > info I've come across out there suggests they may have worked with any > SS50 system.? It basically provides a direct composite video feed out from the > computer, I assume bypassing the need for a terminal.? I plugged it in and > fired it up on my SWTPC 6800 and it is working - I think - it generates a full > screen of readable random characters.? However it does not put up anything > from the computer - that still goes out via terminal.? I'm assuming Ghost > systems were wired up somehow to use this.. I'm hoping to find a manual > that explains how.? I don't see a keyboard interface for it anywhere so maybe > this went along as a complete Ghost system with hardware I don't have. > > > > Thanks if you have anything! > >

7 years, 9 months

MC68K's on DEUNA's

by jnc＠mercury.lcs.mit.edu

> From: Bill Gunshannon > Considering that I have never seen any sockets that were 2mm different > in width ... I really can't imagine any CPU not fitting. I think you're right. I took another look at the drawing, and I'd been looking at the package width dimension: there's also a separate pin-pin distance (horizontal), and that _is_ the same for plastic and ceramic. Ooops! Sorry. Noel

7 years, 9 months

MC68K's on DEUNA's

by jnc＠mercury.lcs.mit.edu

> From: John Wilson > I think this is DELUA? Yes, that's right - sorry! > I'm getting old ... could have it wrong. No, _I_'m the one who's getting old! (But in this case, that's not it - I always get the names of those two mixed up!) > I'd be inclined to just try it. I hadn't bought anything yet... :-) In particular, there's a source of really cheap P12's, but if the 2mm width difference means the Pxx's won't fit, no use paying good money for them, right? > the definitely-fried CPU (right?) that's in there now? The definitely-missing CPU that's not in there now, actually! ;-) Noel

7 years, 9 months

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test-drb March 2017