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Info wanted-- IBM 3274

by rigdonj＠intellistar.net

I bought one with a pile of stuff. What is it? Joe

28 years, 1 month

Epson QX-10, CP/M

by allisonp＠world.std.com

< I would like to test the Vertex 185 under Spinrite (MS-DOS) and expand t < bad track table, if Spinrite discovers more problems. You could but,... < Will the bad track information carry over under CP/M, and will its forma < utility see the MS-DOS info? Otherwise, should we just make a list and e < it? Depending on the controller used likely no for the Bad block info and NO for the format. < Is there a low-level format utility in CP/M? Is it necessary, as under < MS-DOS? Maybe, it's generally machine/controller specific. Necessary yes. General purpose no. REason for that is like floppy controllers hard disk controler of the era varied from system to system. < What is the QX-10 controller card going to think of a different hard dri < Will it try to run the new drive as a 10 MB? it depends what the controller passes back to the bios and if the bios can even be reconfigured. FYI: CP/M2 disks over 8mb must be partitioned to multiple 8mb (or less) logical drives. The file system can only address 65536 128byte logical sectors and up to 16 logical drives. Allison

28 years, 1 month

Another find - Multitech FM-30 Accoustic Coupler.

by DSEAGRAV＠toad.xkl.com

I think it's dead. I plugged it in, turned it on, and the Power light comes on, about 1/2 second later. regardless of what it's plugged into or not, the Carrier light comes high. I have an old style phone, I dialed out rack (I think the modems will go down to 300 baud...) waited for the 1st ring and shoved it in the coupler. No dice. What is one supposed to do with these? -------

28 years, 1 month

Operation of old modems

by yakowenk＠cs.unc.edu

I just picked up an old BellSouth 212A modem, and don't know how to make it go. It has a handful of pushbuttons on the front (AL ST RL DL HS TLK), and doesn't respond to the Hayes command set. Am I supposed to dial the phone myself, and then tell the modem to wake up when I hear the carrier, like with the old acoustic modems? Any ideas on what those abbreviations are? I'm guessing HS = "high speed", probably meaning 1200 baud. :-) And TLK must be "talk". The others have me stumped. Maybe AL is "analog loopback"?) Hints would be appreciated. Thanks, Bill.

28 years, 1 month

Another find - Multitech FM-30 Accoustic Coupler.

by fmc＠reanimators.org

"Daniel A. Seagraves" <DSEAGRAV(a)toad.xkl.com> wrote: > What is one supposed to do with these? Way back when, the drill went like this: (a) dial remote modem's number on phone (as though placing a voice call) (b) listen for remote modem to answer and whistle answer carrier at you (c) put phone's handpiece in acoustic coupler (d) acoustic coupler should notice answer carrier and begin whistling its originate carrier (e) start typing I'm thinking that (d) might take longer these days; I don't know how long it takes these newfangled modems to get around to sending a tone that is recognizable as a Bell 103 answer carrier. It used to be immediate because that's what the modems on the other end tended to try first. -Frank McConnell

28 years, 1 month

Compaq//safety issues

by maxeskin＠hotmail.com

You will LART me for sure because of this question. Is it possible to use the neutral side of a socket for ground? What, in fact, is the difference? (dopeslaps start flying in) >The best way is probably to use a proper isolating transformer. In other >words have neither side of the 110V going to the PC connected to earth. > >A cheater adapter is also fine, provided you connect the 'pigtail' to a good >local earth point. Note that the fixing screw of the outlet (and hence >the mounting box/conduit) may not be earthed. Should be, but I'd not put >my life on it. > >> So, why have I never felt anything touching a PC case? I've done it >> many times, I've touched insides many times, and I've never felt so >> much as a tingle. Would I be able to use a VOM to find this voltage? > >Depends on a lot of things - how well earthed _you_ are (if there's no >way a current can flow through you, then you'll not feel anything). The >values of the capacitors used - low enough, and the current will also be >too low to feel. In practice, this should be the case, but having seen some >cheap PC power supplies I'd not trust them. Oh, and how sensitive you are >to the current. > >In theory, if you connect one side of a high-impedance AC voltmeter to a >local earth point (or, indeed, the neutral side of the socket), and the >other side to the PC chassis without an earth connection, you should be >able to measure 55V. > > >-tony > > ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

28 years, 1 month

Mac 512 video mods

by ard＠p850ug1.demon.co.uk

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28 years, 1 month

Another find - Multitech FM-30 Accoustic Coupler.

by maxeskin＠hotmail.com

I have what seems to be a similar problem on my Practical Periph. 2400 direct-connect modem. It can dial, but refuses to pick up the carrier. Maybe a bad transistor somewhere... it this the only switch it has? >[Voice/data switch?] >Nope. >But it has a full/half duplex switch... >------- > ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

28 years, 1 month

Andrew Davie in Newsweek

by dastar＠ncal.verio.com

Check out what I just found in the July 27 edition of Newsweek, Cyberscope, page 11: Russian Additions The Museum of Soviet Calculators on the Web (MOSCOW for short, at www.comcen.com.au/~adavie) will thrill collectors and amuse the rest of us. "The weird stuff about Soviet machines is what I love," says its curator, Andrew Davie, 33, a programmer from Australia who owns 15 of the 60 devices pictured at his site. Example: unlike American caluclators that form all numbers from 0 to 9 using just seven little parts, some Russian ones use nine. Sam Alternate e-mail: dastar(a)siconic.com ------------------------------------------------------------------------------- Ever onward. September 26 & 27...Vintage Computer Festival 2 See http://www.siconic.com/vcf for details! [Last web page update: 07/21/98]

28 years, 1 month

VLB Ethernet card

by peacock＠simconv.com

>I'm not sure if this would qualify as classic or not, but I have a little VLB 486 machine that needs a 32-bit Ethernet BNC NIC. Hmm, IIRC VLB hasn't been around for 10 years, but I am curious to know if anyone made a VLB network card, I don't recall ever seeing one. I have some 486's running miscellaneous NT chores that could use a boost on network I/O. Along those lines, and closer to that 10 year limit, has anyone ever tried to overclock the Cyrix 486DLC or Dr2 replacement CPUs for 386DX's? Or for that matter, the Cyrix 586 CPUs that fit in 486 sockets? As in running a 586-120 at a base 40Mhz, upping it to 160Mhz? Jack Peacock

28 years, 1 month

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