test-drb

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101090 discussions

by Eurtly＠Southslope.net

I just ran into this article that you have posted. I have all the data sheets and even a couple of SN76477N chips that I just aquired. I'm looking for more of the SN76477N AND SN76488 CHIPS or the replacements. Can you help me out here... Eurtly Parker Eurtly(a)Southslope.net _____________________________________________________________________ Old TI analog sound chip; info? Tothwolf cctech(a)classiccmp.org Tue Dec 17 16:04:55 2002 Previous message: Old TI analog sound chip; info? Next message: Old TI analog sound chip; info? Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] ---------------------------------------------------------------------------- ---- On Tue, 17 Dec 2002, Tony Duell wrote: > > I'm looking for the documentation for the olde TI analog sound chip; > > this dates back to the late 70's early 80's if my memory serves me > > correctly. I don't even remember the part number. AFAIK, it had some > > kind of "I2L" (I squared > > The number 'SN76477' springs to mind. May not be the same device, but it > was a TI analogue sound generator. The sound generator chips that I recall TI making were the SN76477N, SN76488N, and the SN94281. I believe TI also made some others, but those were commonly available to hobbyist in the time period that is mentioned above. I'm fairly sure Radio Shack at one time sold some of those particular sound generator chips too. I have the data sheet for the SN94281, but I'm not sure about the other two. If it would be helpful, I can scan it. -Toth

23 years

PDP-11 Freeware CDs for RSX-11 and RT-11 (Originally Produced by Tim Shoppa)

by jhfinepw4z＠compsys.to

The last two times I posted this, another person contacted me either for help or to request the CDs. This will be the last time for about 6 months unless more people reply. In regard to the Freeware CDs for RSX-11 and RT-11 that Tim Shoppa originally produced: I am in the middle of finishing a second (very small) batch of CDs and could easily add a few additional copies. I will be making all copies of the CD images from: ftp://ftp.trailing-edge.com/pub/cd-images/ http://www.classiccmp.org/PDP-11/RT-11/ http://www.classiccmp.org/PDP-11/RSX-11/ Since not everyone has both a high speed internet connection and a CD burner, I thought it would be helpful to make them available. If you have both requirements and are using Windows 98 SE / Nero Burning, I can help with the details if you don't know how to burn a CD from an "Image File". I have even been able to produce a label for each CD that is close to the original label from Tim Shoppa, although since they were scanned (THANK YOU FOR THE HELP), they are not perfect. They are available at $ 5 / $ 9 / $ 12 for 1 / 2 / 3 CDs. In addition, I understand that Memorex Black CD-Rs have a longer shelf life and are available at Business Depot. If anyone wants those instead, add $ 1 for each CD that you are requesting. Thus those amounts are $ 6 / $ 11 / $ 15 Please contact me directly for my snail mail address. I picked up some Memorex Black CD-R blanks and started on the copies for those who have already requested that a Black CD-R be used. Please include your mailing address!!!!!!!!!!!!!!!!!!! In general, I will regard any funds you send as a gift so that if anyone really can't afford the CDs, please state why that is so. Outside of the US, probably about $ 2 should be sufficient for extra postage. All amounts are in US dollars. Please ask if you are not in the US. No point in converting twice. Sincerely yours, Jerome Fine -- If you attempted to send a reply and the original e-mail address has been discontinued due a high volume of junk e-mail, then the semi-permanent e-mail address can be obtained by replacing the four characters preceding the 'at' with the four digits of the current year.

23 years

paging dan veeneman

by jwest＠classiccmp.org

Sent a few emails to Dan Veeneman, no replies - was wondering if I had the right email address. Regards, Jay West

23 years

DEC disk packs.

by tim.myers＠sunplan.com

I have 29 RLO1/RLO2 cartridges, 11 RL07 cartridges, and 3 RM03 cartdridges. If anyone wants to collect them from The Wirral, UK, contact me off list. The need to be collected by the end of this week, they'll be skipped otherwise. Tim.

23 years

Help! Facit 4042 PT Reader/Punch

by rigdonj＠cfl.rr.com

Pulled this out of deep storage this past week but it seems to be dead. Does anyone have any info on these? Specs, pinouts, general info, service info, anything? Joe

23 years

Looking for : schematics and technical manual for LA30 or DECwriter I

by hansp＠aconit.org

Subject line says it all, we have an LA30 that we would like to get working. It operates in local mode but we cannot get it to talk current loop to our PDP-9. Any help would be appreciated. -- hbp

23 years

Mac LCII in San Antonio, Texas

by vcf＠siconic.com

If interested in a Mac LCII, contact original sender. If I was interested I wouldn't pay more than $5. Reply-to: texcritsit(a)devtex.net ---------- Forwarded message ---------- Date: Fri, 18 Apr 2003 19:34:19 -0500 From: texcritsit <texcritsit(a)devtex.net> Subject: I have an Apple I have an Apple Macintosh LC II system. Includes keyboard, mouse, monitor, and printer. Need more specs? How much are you willing to pay? I live in San Antonio, Texas. If you're interested contact me at gabehack(a)hotmail.com ~Gabe Hackebeil~ -- 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 *

23 years

Where can one find 2.5 inch floppy disks, and other odd sizes

by dwightk.elvey＠amd.com

>From: "Fred Cisin (XenoSoft)" <cisin(a)xenosoft.com> > >On Wed, 16 Apr 2003, Kurtk7 wrote: >> The 8" disks are not so much a problem, but from what I can tell, there were >> 2.0, 2.5, 2.8, 3.0, 3.25, and 4.0 inch formats and finding even one example I don't know that 8 inch were all that regular. You have 16 hard sectored and 32 hard sectored. You even have a hard sectored with the holes around the outside of the disk instead of the center. Now, add single/double density and single/double sided. Dwight > >Also: >2.9" >3.9" > >and, of course, >5.25" (soft-sector, hard-sector (10 and 16), twiggy) >3.5" (early ones without shutter, manual shutter, one-way shutter, >floptical)

23 years

Commodore 16 Power Supply

by h.ahonen＠shaw.ca

Hi, Can someone please help me. I have a Commodore 16 computer without Power Supply. I understan it requires 9VDC source at 1A. What is the polarity of the connector? Is plus (+) on the center pin or on the sleeve? Thanks Hank Ahonen email: hank.ahonen(a)shaw.ca

23 years

Now tape drive was Re: Cranking up a HP 7914.

by fmc＠reanimators.org

Joe <rigdonj(a)cfl.rr.com> wrote: > Anybody know if these use the same tapes as the HP > 9144/7942/7946? Also if the 9144/7942/7946s can read the 7914 tapes? Yes and yes, up to a point. They do use HP 88140 tapes (and may take 3M DC6xxHC tapes too). I don't think you can easily use the 791x/4x standalone disk->tape backups to restore the image to another model of drive. For that matter, I'm not sure what the drive writes on them in the course of a standalone backup or whether the drive will permit user-level read access to the standalone backup media. I don't see any reason why it wouldn't, except for notions about security, but then I'm pretty sure these drives will write to some regions of the tape even if you've set the write-protect knob to "protect" -- so I think they're too smart for their own good. -Frank McConnell

23 years

message from comp.sys.cdc

by aek＠spies.com

Just saw this on comp.sys.cdc Unfortunately, they may have waited too long for help :-< Greetings: Our computer museum, The Cybertheque Museum, has been preserving important CDC computers and their software, manuals and spare parts since 1971; we are currently in a major funding crisis and there is jeopardy of the irretrievable loss (lien sale) of the following machines (and more): 1. CDC 160 S/N 18 (handwired at Chippewa, overhanging desktop, rising punch) 2. CDC 160A S/N 270 3. CDC 606A S/N 9 (non-corporate switches) 4. CDC 8092 Teleprogrammer S/N 24 5. Librascope General Precision LGP-30 vacuum tube computer S/N 254 6. Various IBM card unit record peripherals for the 160. 7. CDC 1604 Console (with typewriter and punch) 8. CDC 3200 Console and Typewriter Console and various 3200 frames. 9. CDC 6400 cabinet 10. large amount of 1604, 3000, 6000, 7000, Control Corp, DDI, and peripheral logic cards 11. The entire FOCUS program library for the 160/160A 12. Much of the software library for the 1604 13. Much object and source for 6000 SCOPE 14. Experimental Operating Systems from Roseville and Rochester for the 160A/8090 15. 1700 Software 16. The entire software library for the Roseville TFC/MTC 32bit mini- computer. And much much more. Since a crisis precipitated by the unreasonable real-estate tax and redevelopment policies of Anoka County, MN in 1991, we were denied our musuem building and forced to store the above systems in storage unit warehousing in the Twin Cities area. The rental agreement was reasonable at the time but in the ensuing years the warehouse company decided to breach the agreement and forced us to pay ever increasing rent until it has become a major burden. The intent was to ready new facilities in Northern Minnesota and move the collection; the high rent at the warehouses and the high cost of transportation has delayed the relocation effort. We must pay $900.00 per month for the storage; we are attempting to raise money to cover some past rent to avoid a lien sale on April 23. We are open to discussions to salvage the collection before the sale and/or to partner with others and receive donations to support the ongoing rental until relocation is possible. Please help us avoid the sad loss of such important artifacts. Michael Grigoni founder and president Cybertheque Museum

23 years

Was HP 7914 - Priam 15050 & 3350s

by Innfogra＠aol.com

In a message dated 4/18/03 5:21:40 AM Pacific Daylight Time, rigdonj(a)cfl.rr.com writes: > > There are locks on them. But they weren't locked! That's one reason I > probably never find a good one. I think it's a long shot that this one is > useable. > Will your surplus place let you plug it in before you take one? This might be the best choice now that you know how to deal with the locks. If you have it home, I would just make sure it is level, warm and plug it in. Hmm, that's right, you live in Florida you don't have to make sure it is warm. I am going to wait till summer before trying to start the 3350s I have. Good luck. I consider these Priams to be fairly sturdy drives. Paxton Astoria, OR

23 years

corrected adr

by aek＠spies.com

msg(a)waste.org

23 years

Grigoni's email adr

by aek＠spies.com

msg(a)wate.org

23 years

Cranking up a HP 7914.

by rigdonj＠cfl.rr.com

At the urging on one of the other local collectors and against my better judgement, I went back and picked up the HP 7914 disk drive that was part of the HP 1000 system that I recently acquired. I think this is going to be a waste of time since I've never found one of these old drives that still worked. But I'm going to try this one and see what happens. Anyone have any suggestions about anything that I should check or do before I try to spin this drive up? Joe

23 years

DEC RRD40 CD caddies (was Re: DEC newbie)

by classiccmp＠crash.com

> Just how uncommon are the RRD40 caddies? I managed to obtain > some caddies for my RRD40, so I think I've been rather lucky. > I remember reading not too long ago that the things seemed to > be made of unobtanium. I recall back in the 1990-91 timeframe when VMS was first being distributed on CD as well as tape, we got these plastic cases that held the CDs, and each CD was in an RRD40 pincer caddy. Which was fine for my lab because we actually had an RRD40 on hand... I'm not sure if the CONDIST started early enough to be delivered the same way. I used to have one of these VMS 5.x CD kits around here, but it seems determined to remain hidden so I can't confirm. --S.

23 years

PlusTek Spectra 1200 and 6000 scanners

by cb＠mythtech.net

Anyone know if the interface card for the PlusTek Spectra 1200 and 6000 sheet feed scanners is a SCSI card? I have both of these scanners. On the back is a DB25 Male port. No power input, so it pulls power from the connector. The manuals I have just indicate that it uses an "Interface Card" that comes with the scanner. Naturally I don't have the card or the cable. I'm curious if it is a SCSI card as many older scanners used. I'm looking to possibly bring one back to life to try using for archiving of old manuals (the HP All-In-One I had set aside for the purpose I just found out is a Print/Copy/Fax, no scanner). If it uses a special custom card, either A: does anyone have one that they want to give me (and the cable if it is something special as well), or B: does anyone want the scanners? I don't know if either works as they were given to me as is years ago and have never been used. I do have the manuals for them, as well as one driver disk (but the drivers appear to still be downloadable from PlusTek's web site). -chris <http://www.mythtech.net>

23 years

DEC newbie (was need caddy for RRD-42DA CD-ROM drive)

by healyzh＠aracnet.com

> > Just checking since I've seen others slip before ... > > > > The RRD42 takes the standard "flip-top" caddy that > > must have been made in their millions. > > Well, that's a relief. Can you point me to a source for these common caddies? Try places that carry old PC junk. This type of CD-ROM was used primarily in 1-4x CD-ROM's that were seen in PC's (the fastest I've seen is an 8x that I put in my PDP-11/73). Of course you can also find this style CD-ROM in DEC, Sun, and probably other manufacturer's equipment (I think Apple had one drive of this style). Actually your best place to look might be eBay, I'd imagine they're pretty easy to find there. Just be glad you don't have one of the drives that use the 'pincer' caddies! Zane

23 years

Last call for Printronix

by cb＠mythtech.net

Oh, sorry... its a Printronix 300 >What model is the printronix? > > >At 11:17 AM 4/18/2003 -0400, you wrote: >>Last call if anyone wants my Printronix or parts from it. The printer >>supposedly has a fried transformer in the power supply. I know it does >>not power up. >> >>I have the complete printer, rolling stand, and at least one paper basket. >> >>Its located in NJ (07450), I'm not willing to ship the whole thing, but I >>am willing to hold on to it for a pickup, or to strip any wanted parts >>from it and ship those. >> >>It goes in the dumpster Monday afternoon if someone doesn't speak up >>first. -chris <http://www.mythtech.net>

23 years

Last call for Printronix

by cb＠mythtech.net

Last call if anyone wants my Printronix or parts from it. The printer supposedly has a fried transformer in the power supply. I know it does not power up. I have the complete printer, rolling stand, and at least one paper basket. Its located in NJ (07450), I'm not willing to ship the whole thing, but I am willing to hold on to it for a pickup, or to strip any wanted parts >from it and ship those. It goes in the dumpster Monday afternoon if someone doesn't speak up first. -chris <http://www.mythtech.net>

23 years

5.25" drive identification

by cb＠mythtech.net

>Machines with 1.2M drives weigh less than machines with 360K drives? No, no that doesn't work... my Leading Edge machines have 360K drives, and they weigh less than my IBM AT's with 1.2M drives. :-) -chris <http://www.mythtech.net>

23 years

5.25" drive identification

by dlormand＠aztecfreenet.org

I have been told (by an IT professional, take that for what it's worth) that 5.25" 360K drives have the latch handle on the left side of the drive, and the 1.2M drives have it on the right side. All the drives I have in view right now, this is true. Anybody have a notion of whether this is absolutely true in fact? It sure would make sorting drives easier than trying them out on an old peecee! (Which actually needs to be done anyways, to test for functionality.)

23 years

What is a Smartnet Arnet card?

by rigdonj＠cfl.rr.com

Found this this morning. Full length 16 ISAcard for a PC. Marked "Arnet Smartport" "Made in USA" and "Copyright 1985 Arnet Corporation". It has a daughterboard marked "Arnet Smart Plus 4". The main board has two copper shielded 34 pin ribbon cables that extend out the back panel. Snybody know what this is? Joe

23 years

Was HP 7914 - Priam 15050 & 3350s

by Innfogra＠aol.com

Actually IIRC the HP 7914 has a Priam 15050 single platter(?) hard drive with a 14 inch platter. The HP 7912 used the similar Priam 6650 drive. These were used in many early computers from the late 70s to early 80s. Early Xerox 8010 Stars had them so there may be some info on the drives on Al Kossow's Site. IIRC these auto head park (with a loud clunk) when powered off. There may be drive &/or head locks too. I am looking for information on starting up some Priam 3350s, 8 inch HD drives. I have an Intel 330 (6 slot Multibus 1) and an Intel 380 (14 Slot Multibus 1 with separate drive cabinet) that I want to fire up before I part with them. Both these use Priam 3350s. Also looking for ideas on how to start them safely. Last time I used them was about 1989. I did park the heads and locked the drives for the intervening years. Paxton Astoria, OR

23 years

Need command codes for Epson Stylus Color 600

by vcf＠siconic.com

Does anyone have documentation for the complete command codes of the Epson Stylus Color 600 printer? The command codes are apparently identical to those of the LQ-850, so a manual for that printer will also do. Any help would be greatly appreciated. -- 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 *

23 years

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