test-drb

test-drb@ccmp.vtda.org

101090 discussions

by roblwill＠usaor.net

Probably all that's wrong with it is a blown fuse. (that happened to a TRS-80 Model I P/S that I had). To get it open, take a utility knife (the kind with snap-off blades) with a new blade, and a blow torch. Use the blow torch to heat the knife, then "cut" around the P/S until the top half pops off the bottom half. I use this method to open old laptop batteries to replace the cells. When you get the P/S fixed, just put the two halves back together, (sand [or cut] the ridges off made by the hot knife, first) and put a bead of hot glue in the seam to hold it together. It doesn't look that bad, and It can always be popped apart with a screwdriver if you need to fix it again. GooD LucK, ---------- > From: Sam Ismail <dastar(a)ncal.verio.com> > To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> > Subject: Re: Apple //c power supply > Date: Friday, October 09, 1998 4:10 AM > > On Thu, 8 Oct 1998, Paul Kearns wrote: > > I'd like to get in there and see if I can fix it, or just rebuild it (but > I'd still like to at least rebuild it inside the brick case). Does anyone > know if there is a way to get these things open without ruining them? I've > pushed and poked and prodded with no luck.

27 years, 11 months

Regarding PDP-11/ and rt11 too

by CLASSICCMP＠trailing-edge.com

>>The question is however is there something else? I know fuzzball is >>around but I don't know if that is a option for most -11 users. >I don't think so, since some of Fuzzball, if I remember correctly, >is built under RT-11 and runs under RT-11. I don't think I've seen >a Fuzzball system which was entirely self-bootable. (Maybe John >Wilson can answer, since he's done some stuff with it). John Wilson does have self-bootable Fuzzball images on ftp.dbit.com, in /pub/pdp11/fuzzball. Fuzzball is an "operating system" of sorts, but you can't do development with it unless you have the RT-11 macro assembler, linker, and other program development tools, so there isn't a lot of interesting stuff you can do with it unless you've also got a RT-11 license. TSX+ is pretty much the same way - without the RT-11 utilities you're dead in the water. -- Tim Shoppa Email: shoppa(a)trailing-edge.com Trailing Edge Technology Voice: 301-767-5917 7328 Bradley Blvd Fax: 301-767-5927 Bethesda, MD, USA 20817

27 years, 11 months

IBM 5363 II

by rigdonj＠intellistar.net

OK what is an IBM 5363 II? I found one in a trift store. I've been told that the 5363 was a S/36 that designed to be a very low cost entry into the 3X architecture and that it runs an operating systems called SSP. So what is a 5363 II and what OS does it use? Is it worth picking up and saving? Also does anyone know how to get around the password protection? Joe

27 years, 11 months

Regarding PDP-11/ and rt11 too

by mbg＠world.std.com

>The question is however is there something else? I know fuzzball is >around but I don't know if that is a option for most -11 users. I don't think so, since some of Fuzzball, if I remember correctly, is built under RT-11 and runs under RT-11. I don't think I've seen a Fuzzball system which was entirely self-bootable. (Maybe John Wilson can answer, since he's done some stuff with it). Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com | | Unix Support Engineering Group | (home): mbg!world.std.com | | Compaq Computer Corporation | addresses need '@' in place of '!' | | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | | Nashua, NH 03062 | "pdp-11 programmer - some assembler | | (603) 884 1055 | required." - mbg | +--------------------------------+-------------------------------------+

27 years, 11 months

Apple //c power supply

by paulk＠microsoft.com

Arrrggghhh... Okay, so, for some time my Apple ][ collection has included a //c which I've never booted because I didn't have the brick for it. I've seen them for sale all over, but always for $25 to $40 (plus shipping). Since that's like five times what I paid for the CPU, I've been pretty reluctant to go for it. At the VCF swap meet, I picked up a //c with brick for $15, and the vendor even threw in a non-working //c for parts (cool). I brought it all home, fired up the two good //c's, and then turned to the non working one, which promptly (auugh!) ate the brick. I'd like to get in there and see if I can fix it, or just rebuild it (but I'd still like to at least rebuild it inside the brick case). Does anyone know if there is a way to get these things open without ruining them? I've pushed and poked and prodded with no luck. Thanks a lot! Paul Kearns paulk(a)microsoft.com

27 years, 11 months

World Power Systems scam

by kaikal＠MICROSOFT.com

World Power Systems: Memory boards, big ads, great prices, non-existent company. Some guy named "The Colonel" who of course wasn't. Magazine ads on credit, graphic design for said ads on credit, prepayment from customers never returned. Not just in Byte magazine, also (at least) kilobaud and Interface Age, year was 1978? Whole thing was blown by the editor of Interface Age, who was suspicious and called to "do a story" on the company. When he showed up, "The Colonel" was on the lam, and there was nothing but an empty office and a phone. An almost identical scam happened in, as I recall, 1979, when a company placed multipage color ads for a bunch of really cool, inexpensive TRS-80 Model 1 peripherals in 80 Microcomputing Magazine, then disappeared. And let's not forget Morrow, which, after changing names to Xibec (Xidec?) and announcing & taking orders for some super doozy computer called The General, also vanished overnight. Kai -----Original Message----- From: Sam Ismail [mailto:dastar@ncal.verio.com] Sent: Thursday, October 08, 1998 3:26 PM To: Discussion re-collecting of classic computers Subject: Re: World Power Systems scam On Thu, 8 Oct 1998, John Foust wrote: > Does anyone recall the month and year the "World Power Systems" > scam advertisement appeared in (was it?) Byte? What was the nature of this scam? Sam Alternate e-mail: dastar(a)siconic.com ---------------------------------------------------------------------------- --- Ever onward. Coming in 1999: Vintage Computer Festival 3.0 See http://www.vintage.org/vcf for details! [Last web site update: 09/21/98]

27 years, 11 months

What computers used the AMI7200 & 7300?

by dastar＠ncal.verio.com

Here's the information about pricing on the F14 CADC directly from Ray Holt. > To my knowledge the first set of chips were included into the > development price, however, as I remember the remainder of the initial > contract had a price tag of $250-$350 per chip. The ROM's were > probably a little less that that. In follow-on production (qty's of > 1000+) AMI had estimated chip prices to be under $100. I noticed I had > put $65 in my paper. And on some of the applications the AMI 7200 & 7300 microprocessors made their way into: > The 7200 and 7300 were used, for sure, in very high scientific > calculators and as i/o controllers for some mini's, however, I left AMI > right after the development so I did not get into who any follow-on > customers were. Sam Alternate e-mail: dastar(a)siconic.com ------------------------------------------------------------------------------- Ever onward. Coming in 1999: Vintage Computer Festival 3.0 See http://www.vintage.org/vcf for details! [Last web site update: 09/21/98]

27 years, 11 months

DEC RQDX3 Controller

by healyzh＠ix.netcom.com

Could someone post the jumper settings for a RQDX3 controller? I've been trying to use my RQDX2 docs, but that won't cut it, and I can't find anything on the net. Zane | Zane H. Healy | UNIX Systems Adminstrator | | healyzh(a)ix.netcom.com (primary) | Linux Enthusiast | | healyzh(a)holonet.net (alternate) | Classic Computer Collector | +----------------------------------+----------------------------+ | Empire of the Petal Throne and Traveller Role Playing, | | and Zane's Computer Museum. | | http://www.dragonfire.net/~healyzh/ |

27 years, 11 months

6502 vs. 6800 (was Re: kits, definitions, prices...)

by mbg＠world.std.com

aha... sorry about that... shows how much I've used it recently. You're right. it is a 6800... (damn) Megan

27 years, 11 months

6502 vs. 6800 (was Re: kits, definitions, prices...)

by mbg＠world.std.com

>> alt.folklore.computers where moron was trying to convince everyone that >>if you left the 6502 running this instruction, your CPU would literally heat >Does anybody know what system is referenced in the Jargon File under HCF >as the one that could burn up its bus lines if the processor were given >the HCF instruction? I've tried the HCF instruction on my 6502-based heathkit electronics trainer (ET-????) It was neat to watch the address lines increment and wrap... But although I ran it for a long time, it didn't catch fire... Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com | | Unix Support Engineering Group | (home): mbg!world.std.com | | Compaq Computer Corporation | addresses need '@' in place of '!' | | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | | Nashua, NH 03062 | "pdp-11 programmer - some assembler | | (603) 884 1055 | required." - mbg | +--------------------------------+-------------------------------------+

27 years, 11 months

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