test-drb July 2001

test-drb@ccmp.vtda.org

301 participants
824 discussions

by dittman＠dittman.net

> NOTE: Type B is Binary; Type A is ASCII > > Directory pub/cpm/genasm/ > Filename Type Length Date Description > ============================================== > . > . > . > spttim10.aqm B 5120 850209 Time support package for DC Hayes Chronograph > > Anyone have a handy Z80 disassembler with a CP/M symbol table? I'm just > curious what's in there. That looks like a compressed .ASM source file. All you should need to do is to uncompress the file. -- Eric Dittman dittman(a)dittman.net

22 years, 12 months

Kodak Gold CD-R

by mbbrutman＠yahoo.com

I don't know if this has been answered or not, but at the sake of being redundant I'll throw in my two cents. Kodak had a line of CDs called "InfoGuard", which have a gold colored reflective surface. The ones I have are for data (computers). They are reputed to be indestructible compared to cheapie media. The protective layer on them is so strong/thick/opaque (choose the correct one) that my Yamaha 4416S can't write them reliably over 2x speed. The Yamaha wasn't a cheapie, so I contacted both Yamaha and Kodak tech support. They knew of the problem, and advised be to write at 2x even though the drive and media are rated for 4x. The discs I've written at 2x are readable. I treat my discs well, so I can't tell you if they really are indestructible. __________________________________________________ Do You Yahoo!? Make international calls for as low as $.04/minute with Yahoo! Messenger http://phonecard.yahoo.com/

22 years, 12 months

hayes chronograph

by RCini＠congressfinancial.com

Ethan: >>I take it the day of the week display is part of the flourescent, >>not LEDs behind the "Sun...Sat" labels, right? Yes, this is the case. I would guess that the LSI multiplexes the digits without any other drivers. The DOW labels are probably treated as segments of a 7th digit by the LSI Rich ========================== Richard A. Cini, Jr. Congress Financial Corporation 1133 Avenue of the Americas 30th Floor New York, NY 10036 (212) 545-4402 (212) 840-6259 (facsimile) -----Original Message----- From: Ethan Dicks [mailto:ethan_dicks@yahoo.com] Sent: Tuesday, July 24, 2001 2:24 PM To: classiccmp(a)classiccmp.org Subject: RE: hayes chronograph --- "Cini, Richard" <RCini(a)congressfinancial.com> wrote: > Hi: > > I have one of these clocks, but haven't opened it in a while. I > believe that it's an extruded Al case that would prevent you from expanding > the case vertically. If it weren't for the display, the PCB could fit in the > Hayes 300 case. That makes sense, given how that style of case goes. > As far as the display, it looks to be a Futaba clock display. > Problem is is that no one carries them. Jameco has one, but it's only > 4-digits. I've never tried to hack right to a VFD. I've only ever played with ones that have controllers. I take it the day of the week display is part of the flourescent, not LEDs behind the "Sun...Sat" labels, right? > If I were retrofitting/rebuilding the clock, and $$$ wasn't an > issue, I'd use a Noritake serial VFD display with a custom font and a PIC > for the clock. That's more or less what I'm leaning towards. I have a Matrix Orbital 20x4 VFD from Linux Central that is currently mounted behind a disk drive bay bracket. It is easily movable. -ethan ===== Visit "The Seventh Continent" http://penguincentral.com/penguincentral.html __________________________________________________ Do You Yahoo!? Make international calls for as low as $.04/minute with Yahoo! Messenger http://phonecard.yahoo.com/

22 years, 12 months

Kodak Gold CD-R's going bye-bye?

by Antonio.Carlini＠riverstonenet.com

> Sometimes I do buy a spindle of the cheap junk just to see who made > it that week. The Imation stuff (yes, Imation, the company that used > to be the Minnesota Mining and Manufacturing company that > made top-name > media for years) was crappy CMC Magnetics junk according to > the ATIP code Can we define "junk" for the purposes of this discussion? Is it junk because: (a) you make more coasters than you would believe is reasonable (b) you find a higher failure rate when trying to read them two years later than you think is reasonable (c) you don't believe that it will last the twenty years (or whatever they claim) ? Given a CD-R (blank or already written), what tool(s) do you use to determine the characteristics on which you are judging it and what are "good" and "bad" things to look out for? Personally, I have only had one read-failure in several hundred burns. That's not counting a few coasters along the way - this was a partial read-failure some six months to a year later when I came to use the CD. I have no idea whether the data was ever written correctly (since EasyCD Creator - which came with the drive - does not seem to have a read-after-write check). Since then I have performed a comparison-against-source step after burning any CD. Fingers crossed, no further failures so far. Antonio

22 years, 12 months

hayes chronograph

by RCini＠congressfinancial.com

Hi: I have one of these clocks, but haven't opened it in a while. I believe that it's an extruded Al case that would prevent you from expanding the case vertically. If it weren't for the display, the PCB could fit in the Hayes 300 case. As I recall, there's a single 40-pin LSI chip with some support chips and various passives. IIRC, the LSI is a General Instruments chip. There's also a 2xAA battery backup. As far as the display, it looks to be a Futaba clock display. Problem is is that no one carries them. Jameco has one, but it's only 4-digits. If I were retrofitting/rebuilding the clock, and $$$ wasn't an issue, I'd use a Noritake serial VFD display with a custom font and a PIC for the clock. Rich ========================== Richard A. Cini, Jr. Congress Financial Corporation 1133 Avenue of the Americas 30th Floor New York, NY 10036 (212) 545-4402 (212) 840-6259 (facsimile) -----Original Message----- From: Ethan Dicks [mailto:ethan_dicks@yahoo.com] Sent: Tuesday, July 24, 2001 1:37 PM To: classiccmp(a)classiccmp.org Subject: Re: hayes chronograph --- Sellam Ismail <foo(a)siconic.com> wrote: > On Tue, 24 Jul 2001, Ethan Dicks wrote: > I bet with as much work as you described in setting up an infrared > communications network to beam the time signal to machines around the > room (cool idea BTW :) Thanks. > one could take an old Hayes 300/1200/2400 modem, > dump the EPROM, hack the code to replace various AT commands with the > Chronograph AT command set, add a clock/calendar chip to the board > somewhere, and roll your own Chronograph. You'd still have to add the > digital readout on the front I noticed from the picture from the cover of the manual that it is the same style as a 1200-baud modem, but taller (to accomodate the display). It looks about the same size as my Tecmar T-Disk case. I'd have to go look, but it depends on which style of extruded aluminum case they used if it could be expanded vertically. The width would be fixed by the size of the top and bottom plates, but it might be possible to fit side risers. In any case, I'm not sure where I'd get a compatible display. I also play with LCD (and VFD) displays with the LCDproc project (lcdproc.omnipotent.net) I have one 20x4 VFD and a couple 20x2 displays (so-called "Pole Displays" for cash registers - RS-232 and 6VAC to drive them). It wouldn't look like a Chronograph, but I could fit an IR emitter to the top of the Pole Display (under a red lens) and set up receivers to pick up the time that way. I presume if I used a carrier other than the one used by IrDA, I could still use the link between my laptop and desktop. I suppose I would have to write a PalmOS app to read the time. This would be easy to prototype with a Pole display and a Linux box with a few serial ports. I could at least do a proof-of-concept prototype. I've also thought about turning an iOpener into a wall clock. Then there is this wall-mount 486 I have with a 10" screen, two PCMCIA slots, an ISA slot, internal HD, etc. I was just contemplating getting a set of Diamond HomeFree cards (cheap) but didn't know if there were Linux drivers for it or not. > ...or maybe you can turn the status lights into a binary clock output? I'm an old hand with Binary Clocks (I've built several and even have an interrupt driven software one for the PET that fits in the cassette buffer and "draws" the clock face in the upper-left corner of the screen that I wrote when I was 13 ;-) I'm even looking at one now on top of my monitor at work (you should hear some of the comments I get). So... while it's a nice idea in theory, unless you rotated the time through a modem faceplate digit by digit, I don't see how you could fit it into the case for a 1200-baud modem. > In the very least, it would make one killer exhibit for the VCF to show > what someone can do in their copious free time to reconstruct computing's > past :) It would be all of that. Now if only I could get some time off when one of the VCFs is running. :-( Lots of ideas, plenty of ways to roll it. No time. -ethan ===== Visit "The Seventh Continent" http://penguincentral.com/penguincentral.html __________________________________________________ Do You Yahoo!? Make international calls for as low as $.04/minute with Yahoo! Messenger http://phonecard.yahoo.com/

22 years, 12 months

Hackers: Computer Outlaws

by Antonio.Carlini＠riverstonenet.com

FWIW it aired on Sunday (IIRC) in the UK on Channel 4 (IIRC). I missed the beginning but I did get to see the Altair, the Apple, the IBM PC, Cap'n Crunch, Woz and Mitnik. I assumed that I'd missed the point because I missed the start but now I realise that I was not supposed to actually learn anything. ("Space" on BBC1 was a bit of a disappointment too) Antonio

22 years, 12 months

Kodak Gold CD-R's going bye-bye?

by Antonio.Carlini＠riverstonenet.com

>Wait ten or twenty years, and then make your >assessment. That's what Tim is concerned with. That's what I am trying to clarify. I'd rather not wait the ten or twenty years. I've already learnt my lesson ... all my floppies will eventually make it onto CD in some image format or other. Within ten years I expect all my CDs (and DVDs) to have made it onto C3D. I don't yet know where I'll be headed twenty years after that :-) Antonio

22 years, 12 months

hayes chronograph

by fmc＠reanimators.org

Ethan Dicks <ethan_dicks(a)yahoo.com> wrote: > I've never seen one, but I'd rather not re-invent the wheel. Just knowing > the command set is a starting point for even a PIC-based modern replica. Not sure, but I think the real thing has an early PIC inside. If Eric Smith's reading maybe he can tell us, I think I got this bit by being present when he opened one up to see what made it tick (ha ha). -Frank McConnell

22 years, 12 months

%20Need%20Sun%20Electric%20Corp%20product%20tech%20info.

by Ixpacman＠aol.com

The Sun Tachometer transmitters that I have in My 1971 37'Egg harbor boat have a sticker on the transmitter claimin that they require a 1.35 volt mercury battery which appears to be the approximate size of a AA battery.The sun part no. is 1766-7.My transmitter model no is EB-9A.Maybe this is helpful to you .ixpacman(a)aol.com

22 years, 12 months

Latest Haul: TRS-80/Apple/Commodore

by r_beaudry＠hotmail.com

>The Network III controllers allow diskless model III/IV's to interface to >a master model III or IV with a HardDisk or floppy disk to load and save >files to... That makes sense, as a few of the IIIs that I took had no floppies. Also, I found a couple of disks last night (not original) that were labeled "Network Scripsit". There were also directions on how to start the host computer, then start up the slaves... Rich B.

22 years, 12 months

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test-drb July 2001