test-drb May 2007

test-drb@ccmp.vtda.org

235 participants
483 discussions

by charlesmorris＠hughes.net

I have found, by scoping the data lines in and out of the laptop, that the endless loop on the laptop is only an internal display glitch - i.e. even though when I type characters they echo endlessly on the screen until another key is pressed, only the one (correct) character is sent to the PDP-11 at each keypress. Similarly, when ODT sends a single "@", continuous "@@@@@@@..." echoes on the display. Who knows why. It's annoying but apparently does not affect the functioning of VTserver. Then there was some more learning to interpret the cryptic messages for input and output devices. Although I thought the program was supposed to send my OS/8 image automatically from the "virtual tape" (and its name is in the .vtrc file with 0 = copy bootstrap, 1 = image file), I eventually learned that entering "vt(1,0,0)" (or maybe it was "0,0,1") would accept the OS/8 image file for input. Not sure if my output device command is correct though. I'm trying to write to my second RL02 drive (RL1: on the PDP-11/23+ with a "1" key) and the only output device string that would work is rl(0,1,0). The program does not explain the significance of the (n,n,n) fields, although it does prompt for a string in that format. It did display a confirmation each 100Kb, and did write the entire 2.5 Mb file to the RL drive! Although it's anyone's guess as to whether I did this correctly. When I put the pack in the RL02 attached to my 8/A and press Load, the "Ready" light does not come on, which I believe means the heads have not locked on the servo track. Which is strange because even if I wrote to the wrong places on the disk, it still should be able to sync up. AFAIK it is not possible to overwrite the servo tracks by writing blocks to the disk through a controller card? Or maybe the light is burnt out... or the pack I used is bad... Please also explain to me the limitation for the size of each partition under OS/8 again? 2500 Kb is less than 2 Mw at 12 bits per word? thanks -Charles On Thu, 24 May 2007 08:15:14 -0700, you wrote: >On 5/24/07, Charles <charlesmorris at hughes.net> wrote: >> yep, Win XP Pro. >> I don't want to go backwards to 98 though :) >> Anything else you could recommend? >> >> -Charles >> > >I wouldn't want to install Windows 98 on a system I was currently >using either. I just happened to have an old Windows 98 system around >that I could use. > >I didn't spend any time trying to figure out what the problem might be >on Windows XP. That would probably be a good thing to do if it might >help other people in the future. I had the VTServer source code and >could try working on it. Maybe I can find some time this weekend to >take a look again. > >-Glen

17 years, 1 month

O YEAH! What a deal!!!

by jba＠sdf.lonestar.org

While $89.93 is quite an oddball price, I wouldn't say its outrageous. This graphics card is for sale in an eBay store, not on an auction, so it will just site there until someone buys it. Its conceivable that there is a Rainbow or two left somewhere in some forgotten industrial application where replacement is not an option without some extreme costs related to it. I've seen Rainbow parts on sale for much higher, mostly from DEC resellers. I still use a Rainbow, and there was a time when my stock of parts was much lower that I may have considered purchasing this card at this price. You have to remember that there is some cost to maintaining a stock of obscure parts that probably only a handful of people in the world would even ever consider purchasing. If he sells it for that price, though, then I think i'll consider getting into the used Rainbow parts business ;-). Jeff Armstrong jba at sdf.lonestar.org SDF Public Access UNIX System - http://sdf.lonestar.org

17 years, 1 month

CiTOH terminals (was Re: Well, now I've gone and done it... Dragged home more big(ish) iron...)

by ethan.dicks＠gmail.com

On 5/22/07, Mr Ian Primus <ian_primus at yahoo.com> wrote: > > > The 101 is the model shaped and colored much like a > > VT100. The keyboard looks similar... but > > its protocol is _not_ compatible with the VT100. > > Good thing I didn't buy the one on eBay a couple > months ago. There was a 101 there, and cheap too, but > it had no keyboard. I may haev a few CiTOH terminals to drag to VCFmw if there's any interest. Closer to the event, I'll inventory what I have and see if I kept any spare keyboards "just in case", if anyone out there already has a terminal, but can't figure out why their VT100 keyboard doesn't work with it. I remember back in the day, since we had dozens of CiTOH and DEC terminals, looking over the available schematics for both and not being able to figure out how the keyboard works. I think it was a matter of inadequate/fuzzy docs more than anything else. Does anyone know of a good printset to pore over to see the nuts-and-bolts of a VT100-era keyboard? ISTR the crux of it was a 6402-type UART squeezing out the keystrokes at some slow baud rate, but I can't recall any essential details right now. I'm just curious if it's possible to swap a crystal or make a simple, switched change to allow one keyboard to work across both vendor's product lines. We used to have lots of dead keyboard when there was one or two terminals on everyone's desk. Since the company was shrinking at that stage, we never bothered fixing them - we just pulled one off a vacant desk and kept working. The number of working keyboards never shrank below the steadily decreasing size of the staff, so economically, it made sense. I think I only saved working keyboards in that set of 4 van loads, but it's entirely possible I picked up one or two dead ones. Right now, I have to search the pile for a VT100 keyboard to get my DECmate I back up and running so I can press it into service as an RX01/RX02 image archiver and finally whittle down my cartons of floppies. -ethan

17 years, 1 month

Microvax II

by chrism3667＠yahoo.com

um, I've had this thing for a while now. It's pretty shabby. The front plastic bezel thing fell off (prolly cause SOMEONE keeps pushing the Honda against it). Other parts and pieces are strewn around the yard. I resisted the urge to send all that crap out for the metal pickup (oh anyone want a rusty 1914 Dalton lathe - only $75 if you pick it up. Real nice babbitt spindle bearings ;). So what to do? Should I actually turn it on? Some board fell out of it not long after I pulled in the driveway 2 winters ago. What's it good for anyway? I hate to just chuck it. At one time these things were going for a G+ on duh bay. Not this puppy though. I'm totally open to suggestions. If anyone has a clean doner (or parts) I could very well be interested. I can't say I have much in the way for a trade though... ____________________________________________________________________________________You snooze, you lose. Get messages ASAP with AutoCheck in the all-new Yahoo! Mail Beta. http://advision.webevents.yahoo.com/mailbeta/newmail_html.html

17 years, 1 month

O YEAH! What a deal!!!

by jba＠sdf.lonestar.org

--- ard at p850ug1.demon.co.uk (Tony Duell) wrote: > Yes, but most of the 'IBM incompatibles' had 1 bit per pixel, just on/off >monochrome grpahics. The 'Bow had a CLUT and up to 4 bits per pixel I think. The Rainbow could do 4 colors from a pallette of 4096 in hi-res (800x240) and 16 from a pallette of 4096 in low-res (384x240). The fact that the pallette was not fixed was a major selling point with some because, in low-res, properly dithered photographic pictures would look far better than on the fixed-pallete IBM PC modes (CGA, EGA). What's a CLUT, by the way? Not familiar with that acronym... -Jeff Armstrong jba at sdf.lonestar.org SDF Public Access UNIX System - http://sdf.lonestar.org

17 years, 1 month

Oi which Amstrads were available in the US?

by chrism3667＠yahoo.com

Here goes another guessing game. I'm aware of the PC 1512 (8086), but something tells me this is an earlier unit w/o an integrated monitor and such. Could be a 1512 though cuz the dude has "1000 games". ____________________________________________________________________________________ Now that's room service! Choose from over 150,000 hotels in 45,000 destinations on Yahoo! Travel to find your fit. http://farechase.yahoo.com/promo-generic-14795097

17 years, 1 month

govliq: Would anyone near Norfolk "relay" Rolms to me?

by erik＠baigar.de

Hi there! In Norfolk there are quite often Rolms 1666B for auction, which can readily be exported to Germany since they do not require demil. Is there any vintage compunter freak out there who would pick up such a lot and send them to me? A commercial carrier charges wants $750 to $1200 for this task. I am not willing to pay that much money since this is only a hobby for me. Maybe one of you is there by occasion??? Does anyone know a cheaper way for shipping of govliq lots? Best regards, Erik.

17 years, 1 month

Dolch Ruggedized laptop Power Plug?

by shumaker＠att.net

ahh sorry... definitely drawing a blank at 4 sources for anything over 2.5. s shumaker At 09:19 AM 5/24/2007, you wrote: >On 5/24/07, Steve Shumaker <shumaker at att.net> wrote: >>Have you looked at something like Digikey.com? >> >>They list a bunch of pigtailed power connectors with ID and ODs >>specified. largest seems to be 2.5mm ID and 5.5mm OD. Page 409 of >>the online Digikey catalog. > >That is assuredly too small. I have plenty of 2.5mm ID plugs. This >is much larger. > >Thanks, > >-ethan

17 years, 1 month

FOG DOS discs

by aek＠bitsavers.org

> Just looking at the directory, and FOGMIS.019.imd Thanks for noticing. I missed one that was unreadable.

17 years, 1 month

TIL308

by Eberhard.Hewicker＠serco.de

do you by chance have some TIL308 left? I would need about 10 ea. 306 or 311 would also do fine. Or do you know a replacemant for those TI-Displays? Thank you mit freundlichem Gru? Eberhard Hewicker Germany dk3he at web.de __________________________________________________________________________________________________

17 years, 1 month

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test-drb May 2007