test-drb March 2003

test-drb@ccmp.vtda.org

314 participants
633 discussions

by Robert_Feldman＠jdedwards.com

AboveBoards could also be used with an 8088. I had a 2MB added to a TurboXT clone so I could run Windows 3.0. -----Original Message----- From: chris [mailto:cb@mythtech.net] Sent: Thursday, March 20, 2003 10:08 AM To: Classic Computer Subject: Re: 4M expanded memory cards >I remeber some brand of memory addon cards were prised back in the 286 era, >Intel Aboveboard comes to mind. I think I might have a box of Intel AboveBoard's. I'm not sure how many, or how much ram is on each, but I seem to recall that I have a file box full of them tucked away under my parts shelves somewhere. -chris <http://www.mythtech.net>

22 years

Subject: new finds

by musicman＠satcom.whit.org

Wow! You are complaining about receiving 'donations'? I'd love to have a PDP-11 or an old VAX or even old Commodore equip. donated to me! Would make a great project and display at work in our data center! dww -----Original Message----- From: cctech-admin(a)classiccmp.org [mailto:cctech-admin@classiccmp.org]On Behalf Of cctech-request(a)classiccmp.org Sent: Tuesday, March 18, 2003 11:00 AM To: cctech(a)classiccmp.org Subject: cctech digest, Vol 1 #425 - 17 msgs Send cctech mailing list submissions to cctech(a)classiccmp.org To subscribe or unsubscribe via the World Wide Web, visit http://www.classiccmp.org/mailman/listinfo/cctech or, via email, send a message with subject or body 'help' to cctech-request(a)classiccmp.org You can reach the person managing the list at cctech-admin(a)classiccmp.org When replying, please edit your Subject line so it is more specific than "Re: Contents of cctech digest..." Today's Topics: 1. Re: Jupiter Ace (ben franchuk) 2. Re: Some more offerings from the 'Garage' (Owen Robertson) 3. HP9830 keyboard (Tony Duell) 4. RE: Jupiter Ace (Dwight K. Elvey) 5. Re: Penske is our friend! (William Donzelli) 6. Re: No, it's an H/Z89 was: Re: Z-100 find ? (Tony Duell) 7. Re: SWTPC TV Typewriter II restoration (Tony Duell) 8. Re: SWTPC TV Typewriter II restoration (Tony Duell) 9. Re: Jupiter Ace (Tony Duell) 10. Re: Trouble with ASR33 (Tony Duell) 11. Soldering Irons (was RE: SWTPC TV Typewriter II restoration) (J.C.Wren) 12. Re: Manual "Practical Microprocessors" HP 5036A Monitor ROM (Stuart Johnson) 13. Re: Soldering Irons Metcal (Glen S) 14. Re: Some more offerings from the 'Garage' (Megan) 15. Re: Some more offerings from the 'Garage' (William Donzelli) 16. Workslate (Ron Hudson) 17. new finds (Jay West) --__--__-- Message: 1 Date: Mon, 17 Mar 2003 16:23:59 -0700 From: ben franchuk <bfranchuk(a)jetnet.ab.ca> To: cctalk(a)classiccmp.org Subject: Re: Jupiter Ace Reply-To: cctech(a)classiccmp.org Witchy wrote: > Can't have been from what I remember; the original Speccy used a piezo > 'speaker', and later ones fed the sound output through the RF line....none > of my Sinclair machines have that sort of setup, *but* the likes of the > Oric-1, Camputers Lynx etc all did. Even the Microbees that I'm currently > looking at have that sort of speaker....not sure if it's 32ohm though. What about getting a cheap 32 ohm headphone , and use the speaker off that? Ben. --__--__-- Message: 2 Date: Mon, 17 Mar 2003 17:52:37 -0600 Subject: Re: Some more offerings from the 'Garage' From: Owen Robertson <univac2(a)earthlink.net> To: Classic Computer Mailing List <cctalk(a)classiccmp.org> Reply-To: cctech(a)classiccmp.org on 3/17/03 2:38 PM, David Betz at dbetz(a)xlisper.mv.com wrote: > I have only heard from two other people and both of them have had > trouble contacting James as well. Has anyone had any luck ordering > items from James Willing and/or the Computer Garage? Or shall I write > off my payment and avoid these offers in the future? I don't know, but I sent off a $15 money order weeks ago for two of the books he listed for sale here on the list, and I haven't heard from him since. -- Owen Robertson --__--__-- Message: 3 From: ard(a)p850ug1.demon.co.uk (Tony Duell) Subject: HP9830 keyboard To: classiccmp(a)classiccmp.org Date: Tue, 18 Mar 2003 00:20:01 +0000 (GMT) Reply-To: cctech(a)classiccmp.org I am currently restoring an HP9830. I guess this is a classic computer (for all it says 'calcualtor' on the nameplate) because it runs BASIC, and is 30 years old! Repairing the electronic faults has not been a problem (boards of TTL -- yum...). It now powers up, runs programs, drives the 9866 printer sitting on top of it, saves/loads to cassette, and so on. I am now left with the keyboard which has 5 problems : 1) The 'Stop' keycap is missing, although the switch is complete and undamaged 2) The keycaps need cleaning 3) The power-on lamp on the front of the machine is burnt-out 4) The mains switch is broken 5) The plastic keyboard bezel (surround) was badly broken by the postal 'service'. I have most of the broken bits of plastic OK, solutions ... 1) My junk box supplied a keycap that will fit (without modifications), although it's too short and has the wrong label. It'll do for the moment until I cna find soemthing better (unless anyone here is mad enough to have stripped a 9830 for parts -- I hope not!) 2) Trivial to put right! 3) This is a wire-ended bulb, running off the 5V line through a 22 ohm resistor. I can get a 5V 60mA bulb -- as I don't want it to be particularly bright this should be fine. Does anyone know what the original bulb was, though. 4) This is more of a problem. The original switch is a DPDT rocker (and all 6 terminals are used -- the NC contacts connect to a 1M resistor used to discharge the mains filter when the machine is turned off). It mount with 2 screws onto the keyboard chassis. There is very little space in that area too. I don't want to modify the machine more than I have to, and I can't find a suitable switch in any of the catalogues. HP used the same switch on many devices in the 1970s -- the 9866 printer has an identical switch, so do the I/O expander and disk drives for my 9825. Anybody know of a source (I can provide more details, like dimensions, etc, if anyone thinks they can help)?. If all else fails, I'll replace the switch on one of my 9885 drives (where there's a lot more room) and use the switch removed from that drive in the 9830. 5) Any suggestions as to how to repair this? The plastic will stick with dichloromethane, but of course it's not very strong. I have heard of a technique of soaking a piece of cloth in said solvent and sticking it to the back of the plastic to strengthen it. Anyone ever tried this and have any tips? -tony --__--__-- Message: 4 Date: Mon, 17 Mar 2003 15:56:44 -0800 (PST) From: "Dwight K. Elvey" <dwightk.elvey(a)amd.com> Subject: RE: Jupiter Ace To: cctalk(a)classiccmp.org Reply-To: cctech(a)classiccmp.org >From: Witchy <witchy(a)binarydinosaurs.co.uk> > >> -----Original Message----- >> From: cctech-admin(a)classiccmp.org [mailto:cctech-admin@classiccmp.org]On >> Behalf Of Philip Pemberton >> Sent: 17 March 2003 07:37 >> To: cctalk(a)classiccmp.org >> Subject: Jupiter Ace >> >> I also need a 32-ohm speaker, circular, about 1 inch in size >> edge-to-edge. Has anyone got a spare for sale? These same speakers were >> *apparently* used in some of the Sinclair machines (Spectrum and ZX-series >> IIRC). > >Can't have been from what I remember; the original Speccy used a piezo >'speaker', and later ones fed the sound output through the RF line....none >of my Sinclair machines have that sort of setup, *but* the likes of the >Oric-1, Camputers Lynx etc all did. Even the Microbees that I'm currently >looking at have that sort of speaker....not sure if it's 32ohm though. > >cheers > Hi My Jupiter Ace has a small dynamic skeaker. I don't recall how the graphics was done. Dwight --__--__-- Message: 5 Date: Mon, 17 Mar 2003 19:22:52 -0500 (EST) From: William Donzelli <aw288(a)osfn.org> To: cctalk(a)classiccmp.org cc: cctalk(a)classiccmp.org Subject: Re: Penske is our friend! Reply-To: cctech(a)classiccmp.org > HUH??? I own and operate a small business in Orlando, and I can tell you I'd > be dead in the water without a State Fictitious Name registration, as well as > business licenses for Orange County and the City of Orlando. Even if you're > running it from home, you have to have your papers in order or get fined out > of existence . . . Incorporation and business laws vary state by state. In some states, they vary county by county. William Donzelli aw288(a)osfn.org --__--__-- Message: 6 From: ard(a)p850ug1.demon.co.uk (Tony Duell) Subject: Re: No, it's an H/Z89 was: Re: Z-100 find ? To: cctalk(a)classiccmp.org Date: Mon, 17 Mar 2003 23:41:10 +0000 (GMT) Reply-To: cctech(a)classiccmp.org > that. You also need to check on the controller board to see if it's set up > for hard-sectored disc or softsectored ones. There are several controller boards IIRC, and you can have 2 installed at the same time. Mu Z90 has the hard-sectored controller (using a USRT chip) connected to the internal drive and the double-density soft-sectored controller (using a WD179x chip) connected to the 2 external drives (all 5.25" units). I beleive there was an 8" drive system and a hard disk. > The hard sectored (10 sectors) are probably long gone from this world. I I still have one... Getting the disks is a problem. One day, when I've got nothing better to do, I am going to modify a junk 5.25" drive by mounting a punch/die in place of the index sensor and an indexing plate on the spindle. Then I can punch my own hard-sector holes. > still have mine and it occasionally gets the dust blown away. > For those who learned to use a good typewriter this is the best keyboard ever > installed on a PC. I thought it was a fairly standard design, similar to the ones on the VT100, early TRS-80, HP85, etc. --__--__-- Message: 7 From: ard(a)p850ug1.demon.co.uk (Tony Duell) Subject: Re: SWTPC TV Typewriter II restoration To: cctalk(a)classiccmp.org Date: Mon, 17 Mar 2003 23:48:32 +0000 (GMT) Reply-To: cctech(a)classiccmp.org > Michael Holley wrote: > [snip] > > Here are some links to my CT-1024 TV Typewriter II pages. > > http://www.swtpc.com/mholley/CT_1024/CT1024_Index.htm > > http://www.swtpc.com/mholley/CT_1024/Restore/CT1024_Restore.htm > Wow. I'm speechless. That is one amazing repair. I think it's high time for > me to smash my piggy-bank, raid my bank account and buy a nice soldering > station :-) Well, I should probably upgrade myself (I still use an old Weller TCP, which has a not particularly accurate thermostat), but I can assure you that even that is a lot nicer than most 'hobbyist grade' irons. To the extent that on the few occasions that I've tried to use a cheap, totally non-thermonstatically-controller iron recently (to save going back to get my Weller), I've had to give up and go and get said unit. > I've just come to the conclusion that my Antex XS is far too overpowered for You probably mean _UNDERPOWERED_ ! Power is not the same as temperature. For example, my Weller is actually a 45W unit, which sounds rediculously high (after all, many books recomend a 15W iron for PCB work). The problem with too high a power in a non-controlled iron is that it gets too hot. The problem with too little power (in any type of iron) is that it takes too long to heat the joint up, thus getting the rest of the PCB and components hot, causing damage. Try soldering (or worse, desoldering) an IC pin connected to an internal ground plane on a multi-layer PCB and you'll see what I mean -tony --__--__-- Message: 8 From: ard(a)p850ug1.demon.co.uk (Tony Duell) Subject: Re: SWTPC TV Typewriter II restoration To: cctalk(a)classiccmp.org Date: Mon, 17 Mar 2003 23:52:57 +0000 (GMT) Reply-To: cctech(a)classiccmp.org > > when I somehow plugged one of the Molex connectors in backwards, but > > a local computer club member was able to repair the damage for me at > > the time. > If only those kind of clubs still existed... Now, I've got some spare Indeed. The problem is that classic-computer/hardware hackers are not grouped close enough together for such a club to be really workable. You'd really have to meet face-to-face. Occassionally, we do hardware hacking at HPCC, and I almost always have a reasonable toolkit with me. I guess that's one of the last clubs where things do get dismantled and modified -- if I am wrong, and there's another one in the London (UK) area, then please enlighten me :-) > cash... I think it's high time to fix the Jupiter Ace. Properly. > Does anyone have a schematic for a 2114 RAM tester? I think I may have blew Put the supect one in the character generator area (and try it in both positions). The machine will start up with it there, but you'll only get half of each character recogniseable if it's defective... -tony --__--__-- Message: 9 From: ard(a)p850ug1.demon.co.uk (Tony Duell) Subject: Re: Jupiter Ace To: cctalk(a)classiccmp.org Date: Mon, 17 Mar 2003 23:56:07 +0000 (GMT) Reply-To: cctech(a)classiccmp.org > Hi all, > I'm now starting on the Jupiter Ace again and I've got one really big > question that's been bugging me for a while. How the heck does the Jupiter > Ace display *graphics* on-screen? It looks like the chargen is text-only and It doesn't!. You've noticed the problem. All you can do is redefine the characters (acutally, it's worse than you think -- 1K bytes of RAM is 128 8*8 patterns -- the high bit of the character code is used to invert all the dots in the pattern IIRC). And 256 chracters is not enough for the entire screen. That's why you can't have an arbitrray image on the screen. There was a Jupiter Cantab untility to allow setting/reseting points, and one of the error messages was something like 'All characters used' :-) > I also need a 32-ohm speaker, circular, about 1 inch in size > edge-to-edge. Has anyone got a spare for sale? These same speakers were My obvious thought is that most cheap stereo headphones are 32 Ohm impdedance, and about that size. How about raiding a pair? -tony --__--__-- Message: 10 From: ard(a)p850ug1.demon.co.uk (Tony Duell) Subject: Re: Trouble with ASR33 To: cctalk(a)classiccmp.org Date: Tue, 18 Mar 2003 00:01:07 +0000 (GMT) Reply-To: cctech(a)classiccmp.org > On Sun, 16 Mar 2003, Tony Duell wrote: > > > So if the return character is not getting to the rails correctly then > > firstly it won't punch properly and secondly, it won't be detected by the > > approipriate lever in the function unit. > > I haven't be able to verify what character is being produced because the > durn carriage is stuck on the right. Once I get the carriage returned > then I can determine what's going on. Sure you can. In fact the carriage won't help you much anyway because it onlly really decodes printing characters. Look at the selector rails. You'll see there are 8 of them (at least where they connect to the punch), and it's not hard, even without the manual, to work out which state is a 0 and which is a 1, and what the bit sequence is. Then you can see how they're set for each character. Another trick is to use the reader. Open the cover (trivial for you), hold down the tape sensor, and turn it on. Then hold down various combinations of the pecker pins and see what happens. If you can get a friend to help,, you could probably hold down the right combination for a CR -- and see if the carriage then returns. If it does, then you've got a keyboard problem, of course. > > > So let's get that missing bit back first. Are you running the machine in > > LOCAL mode (i.e. from its own keyboard to the printer?). If so, the > > Yes, LOCAL mode. > > > problem could be in the transmitter side (contacts on the keyboard, for > > example). Or it could be a problem in the RX unit (sticking lever). I > > think it's safe to assume that the solenoid driver is not the problem > > here (it's not going to mangle only one bit). > > While I can't say I examined it to the point of ruling this out, I didn't > notice anything wrong with the levers. However, it is an obvious place to > start. Actually, since you're working in local mode, I'd start with the keyboard and distributor contacts. The former, particularly, are known to give problems in old machines. -tony --__--__-- Message: 11 From: "J.C.Wren" <jcwren(a)jcwren.com> To: <cctalk(a)classiccmp.org> Subject: Soldering Irons (was RE: SWTPC TV Typewriter II restoration) Date: Mon, 17 Mar 2003 19:51:07 -0500 Reply-To: cctech(a)classiccmp.org There is only one TRUE soldering iron. If you're serious about soldering and surface mount, you want a Metcal. Don't get the SP-200 series, they're junk. Used Metcals can be had on eBay. Avoid the RFG-30 bases, those are antiques (and not in a good way). The MX 500-DS is ideal, as you can use the 2nd port for either another wand, or the Talon tweezers. The tips are cartridge style tips, and hold temperature regulation far better than a Weller or Hakko (I've used *lots* of different irons in product environments. Don't tell me how much you love your Weller or Hakko until you use a Metcal. Once you've had, you'd just as soon use a wood burner as go back). There are well over 100 different tip styles available, including specialty tips for removing QFP, SOICs, PLCCs, etc. The Talon tweezers are really nice for removing SMT resistors, caps, and with the right tips, SOICs are easily removed. --John > -----Original Message----- > From: cctalk-admin(a)classiccmp.org > [mailto:cctalk-admin@classiccmp.org]On > Behalf Of Tony Duell > Sent: Monday, March 17, 2003 18:49 > To: cctalk(a)classiccmp.org > Subject: Re: SWTPC TV Typewriter II restoration > > > > Michael Holley wrote: > > [snip] > > > Here are some links to my CT-1024 TV Typewriter II pages. > > > http://www.swtpc.com/mholley/CT_1024/CT1024_Index.htm > > > http://www.swtpc.com/mholley/CT_1024/Restore/CT1024_Restore.htm > > Wow. I'm speechless. That is one amazing repair. I think > it's high time for > > me to smash my piggy-bank, raid my bank account and buy a > nice soldering > > station :-) > > Well, I should probably upgrade myself (I still use an old > Weller TCP, > which has a not particularly accurate thermostat), but I can > assure you > that even that is a lot nicer than most 'hobbyist grade' irons. > > To the extent that on the few occasions that I've tried to > use a cheap, > totally non-thermonstatically-controller iron recently (to save going > back to get my Weller), I've had to give up and go and get said unit. > > > > I've just come to the conclusion that my Antex XS is far > too overpowered for > > You probably mean _UNDERPOWERED_ ! > > Power is not the same as temperature. For example, my Weller > is actually > a 45W unit, which sounds rediculously high (after all, many books > recomend a 15W iron for PCB work). The problem with too high > a power in a > non-controlled iron is that it gets too hot. The problem with > too little > power (in any type of iron) is that it takes too long to heat > the joint > up, thus getting the rest of the PCB and components hot, > causing damage. > > Try soldering (or worse, desoldering) an IC pin connected to > an internal > ground plane on a multi-layer PCB and you'll see what I mean > > -tony --__--__-- Message: 12 From: "Stuart Johnson" <ssj152(a)charter.net> To: <cctalk(a)classiccmp.org> Subject: Re: Manual "Practical Microprocessors" HP 5036A Monitor ROM Date: Mon, 17 Mar 2003 19:13:42 -0600 Reply-To: cctech(a)classiccmp.org ----- Original Message ----- From: "Glen S" <glenslick(a)hotmail.com> To: <cctalk(a)classiccmp.org> Sent: Sunday, March 16, 2003 10:31 PM Subject: Manual "Practical Microprocessors" HP 5036A Monitor ROM > By request, you can currently find source code for the HP 5036A Monitor ROM > here: > > http://home1.gte.net/~gslick/5036a/5036A.HTML > > This source code was generated by unassembling the 5036A ROM and then adding > the comments, labels, and symbols from the source listing in the manual. I > have not had time yet to proof read all of the comments that I manually > typed into the source from the manual, but I have verified that this source > reassebles into binary code that matches the ROM. > > Appendex E of the manual contains notes on running the demo programs in the > ROM {EHCO, ANDGT, CONV, WTM, SQRL, ORGAN, ROCT, STW, SNAKE}. When I have > more time I will try to add that info. > > -Glen > Glen, Thanks VERY much. I am surprised you got to this so quickly, and especially for verifying that the code reassembles into the ROM. I will look forward to the notes for the demo programs and will continue to look for a source for the manuals. Stuart Johnson --__--__-- Message: 13 From: "Glen S" <glenslick(a)hotmail.com> To: cctalk(a)classiccmp.org Subject: Re: Soldering Irons Metcal Date: Mon, 17 Mar 2003 17:34:02 -0800 Reply-To: cctech(a)classiccmp.org I picked up a used MX-500S on eBay and later a DS1 to go with it. I still need to pick up a compressor some day before I can use the DS1. What I don't have are any manuals nor can I find any online anywhere and it's not clear if Metcal or distributors sell copies of the manuals. It would be nice to have instructions for the DS1 before I need to use it the first time. I don't think I have all of the necessary filters and such. -Glen > > There is only one TRUE soldering iron. If you're serious about soldering >and surface mount, you want a Metcal. Don't get the SP-200 series, they're >junk. Used Metcals can be had on eBay. _________________________________________________________________ Add photos to your messages with MSN 8. Get 2 months FREE*. http://join.msn.com/?page=features/featuredemail --__--__-- Message: 14 Date: Mon, 17 Mar 2003 21:21:19 -0500 (EST) From: Megan <mbg(a)TheWorld.com> To: cctalk(a)classiccmp.org Subject: Re: Some more offerings from the 'Garage' Reply-To: cctech(a)classiccmp.org >> I have only heard from two other people and both of them have had >> trouble contacting James as well. Has anyone had any luck ordering >> items from James Willing and/or the Computer Garage? Or shall I write >> off my payment and avoid these offers in the future? > >I don't know, but I sent off a $15 money order weeks ago for two of the >books he listed for sale here on the list, and I haven't heard from him >since. I also sent off some money for a few books from the same list, and haven't received anything yet. I have also sent mail and have yet to receive a response. Megan --__--__-- Message: 15 Date: Mon, 17 Mar 2003 21:28:39 -0500 (EST) From: William Donzelli <aw288(a)osfn.org> To: cctalk(a)classiccmp.org cc: cctalk(a)classiccmp.org Subject: Re: Some more offerings from the 'Garage' Reply-To: cctech(a)classiccmp.org > I also sent off some money for a few books from the same list, and > haven't received anything yet. I have also sent mail and have yet > to receive a response. I suppose I should go on record as well (no, I am not trying to crucify Jim - he is a good guy, just going thru a rough patch right now). Jim, if you are monitoring the list somehow, we need to talk about that 6800 stuff... Don't everyone get the wrong idea - the deal never really fully formed... William Donzelli aw288(a)osfn.org --__--__-- Message: 16 Date: Mon, 17 Mar 2003 21:12:31 -0800 Subject: Workslate From: Ron Hudson <rhudson(a)cnonline.net> To: Classic Computers <cctalk(a)classiccmp.org> Reply-To: cctech(a)classiccmp.org I have a workslate, workslate pen plotter, Several bits of software on the minicassettes the workslated uses. Who wants it? Whatcha got to trade? Anybody got a Poly 88 5 board working S100 bus computer? Atari Portfolio? Any HP handheld (hp 35, hp 67, hp 97, hp41, hp 71, hp 75) just because it's not on the list doesn't mean I am not interested in it. Wanna trade? --__--__-- Message: 17 From: "Jay West" <jwest(a)classiccmp.org> To: <cctalk(a)classiccmp.org> Subject: new finds Date: Tue, 18 Mar 2003 08:52:18 -0600 Reply-To: cctech(a)classiccmp.org Why do I keep getting old PC's donated to me? *sigh* Just received an epson equity I, if anyone wants it. Also, didn't someone want the Leading Edge 500AT that I got a while back? Jay West End of cctech Digest

22 years

Soldering Irons (was RE: SWTPC TV Typewriter II restoration)

by swtpc6800＠attbi.com

The Metcal system that I have has a PS2E-01 power supply and a RM3E soldering iron. It uses STTC and SMTC tips. I have no documentation on this unit and the PS2E is not mentioned on the Metcal site. How old is this unit? I used a Weller WTPCN for twenty years and it is fine for 1980 vintage through hole components. Michael Holley www.swtpc.com/mholley

22 years

74F582

by Paul.Hills＠siemens.co.uk

Sorry, I was talking rubbish in that last post. The 74F582 is more likely to be similar to the 74F382, a datasheet for which may be found here: http://umwnt1.physics.lsa.umich.edu/locos/images/74f382.pdf I'll carry on looking for the '582 in my books at home however. paul -----Original Message----- From: Dr. Charles E. Morris [mailto:c.morris@townsqr.com] Sent: 19 March 2003 20:14 To: classiccmp(a)classiccmp.org Subject: 74F582 It appears to be an 8-bit ALU. Couldn't find a data sheet from Fairchild (who bought National Semiconductor's logic line), Philips, or anyone! Signetics is no longer in the TTL business, I believe. The only things I can come up with are: pspice.metropoliglobal.com/pspice/docs/DIGITAL.PDF ALU 74F582 74F582S TTL 74F582 Octal, with Parity Generator Checker http://www.s-direktnet.de/homepages/sangmeister/daten/ics/icg74.htm NSC 74F582 and: http://www.egm-electronics.com/listen/ic.htm 74F582N SIG 87 DIP I'd be interested to know where anyone does come up with a data sheet. -Charles >Does anyone know what this is? It's on a board with six 74LS181's and >two 74F582, as well as some static RAM and a ton of other TTL logic. --

22 years

74F582

by Paul.Hills＠siemens.co.uk

It seems that the 74F583 is quite similar to the '582 (of course many of the 74TTL series ICs do have near equivalents like this). I too have struggled to find anything on the '582, but a datasheet for Philip's version of the '583 can be found here: http://www.system.perm.ru/escpdf/Philips/74F583_1.pdf, a reasonably good collection of datasheets in Russia. cheers, paul -----Original Message----- From: Dr. Charles E. Morris [mailto:c.morris@townsqr.com] Sent: 19 March 2003 20:14 To: classiccmp(a)classiccmp.org Subject: 74F582 It appears to be an 8-bit ALU. Couldn't find a data sheet from Fairchild (who bought National Semiconductor's logic line), Philips, or anyone! Signetics is no longer in the TTL business, I believe. The only things I can come up with are: pspice.metropoliglobal.com/pspice/docs/DIGITAL.PDF ALU 74F582 74F582S TTL 74F582 Octal, with Parity Generator Checker http://www.s-direktnet.de/homepages/sangmeister/daten/ics/icg74.htm NSC 74F582 and: http://www.egm-electronics.com/listen/ic.htm 74F582N SIG 87 DIP I'd be interested to know where anyone does come up with a data sheet. -Charles >Does anyone know what this is? It's on a board with six 74LS181's and >two 74F582, as well as some static RAM and a ton of other TTL logic. --

22 years

Missing Base Kit Sistem Area Disk 1 in pro/venix 2.0 distribution (by DEC)

by franco.tassone＠inwind.it

Hi all, I have a Pro/venix 2.0 distribution (the one by DEC) and was going to reinstall it on my PRO/350. Unfortunatelly I discoveded that the Base Kit Sistem Area Disk 1 was bad. Anyone in this list can help me in supplying this floppy image ? Thanks in advance. Franco.

22 years

IBM 5360 available in Nashville, Tennesee

by vcf＠siconic.com

Here is a complete IBM 5360 system available in Nashville, Tennesee. As always, please reply to the original sender. Reply-to: MSlarve(a)aol.com ---------- Forwarded message ---------- Date: Sat, 15 Mar 2003 11:07:32 EST From: MSlarve(a)aol.com To: archive(a)vintage.org Subject: ibm 5360 i just bought a building with an IBM 5360 with 2 printers monitor and key board.. it takes floppy disks that are about 5" and are in a box type holder ... it was all working when unhooked about 2 years ago ... and has been stored in a good environment.. is it an antique computer of interest?. Do you have any information ...Do they still use it anywhere. is it worth anything? thank you ... Mike -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org * Old computing resources for business and academia at www.VintageTech.com *

22 years

make a copy bootable TK50 tape

by Roberto.Jardini＠rtsi.ch

Hallo I'm new with Ultrix-32 os on Microvax II. I need to make a copy of the bootable diagnostics tape for the MicroVax II. The device I have is TK50 TAPE DRIVE. I search a command (like disckopy in DOS) that can perform a copy in Ultrix-32 OS. Can you help me? Many thanks ****************************************************** Visit: http://www.rtsi.ch This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify postmaster(a)rtsi.ch

22 years

SUN computer part numbers?

by rigdonj＠cfl.rr.com

Anybody know of a good site where I can look up some SUN part numbers? I picked up a bunch of loose SUN cards and I'm trying to id them. I have numbers like 270-1388-04 (made by Ross Technology, has 2 ea 7c601, 7c602 and 7c605 ICs), 270-1672-04 (a 13W3 video card), 270-1686-09 (a large motherboard). Joe

22 years

74F582

by c.morris＠townsqr.com

It appears to be an 8-bit ALU. Couldn't find a data sheet from Fairchild (who bought National Semiconductor's logic line), Philips, or anyone! Signetics is no longer in the TTL business, I believe. The only things I can come up with are: pspice.metropoliglobal.com/pspice/docs/DIGITAL.PDF ALU 74F582 74F582S TTL 74F582 Octal, with Parity Generator Checker http://www.s-direktnet.de/homepages/sangmeister/daten/ics/icg74.htm NSC 74F582 and: http://www.egm-electronics.com/listen/ic.htm 74F582N SIG 87 DIP I'd be interested to know where anyone does come up with a data sheet. -Charles >Does anyone know what this is? It's on a board with six 74LS181's and >two 74F582, as well as some static RAM and a ton of other TTL logic. --

22 years

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test-drb March 2003