test-drb May 2005

test-drb@ccmp.vtda.org

248 participants
723 discussions

by bpettit＠ix.netcom.com

While sorting stuff today, I came across the Dyson software for testing floppies. We used to use this for testing many of the early full size and half height 5 1/4 floppies. Dated 1985, 5 disks and manual in a plastic wallet binder. I was going to put it up on eBay but realised that maybe someone on the list would get more benefit from it. Would rather see it go to a good home than make a dollar or two from it. Let me know. Billy

20 years, 1 month

Looking For Advice On Apple II Stuff

by bpettit＠ix.netcom.com

I've been getting more stuff ready for eBay. Today, I opened a box of Apple II books and software. The box seems to be one I packed in 1986 when I moved to California. I have no idea if this stuff is worth the effort to list it and then have to handle it. Could someone on the list give me some advice? If I send you a list of what is there, could you tell me whether it's worth the trouble? Please reply off list to: bpettit at ix.netcom.com Thanks for your help, Billy

20 years, 1 month

Help with MicroVax???

by starmaster＠gmail.com

I am about to obtain a MicroVax model 655QS-B2... I was hoping someone could tell me about this machine, and a good source for documentation and/or information...I know it does not have a power cord with it, but don't even know what kind of power cord it takes... If anyone is willing to help me with a few more questions, I would appreciate it, as I am very new to the Classic Computing area (except for some old C-64 and 128 stuff) Thanks

20 years, 1 month

small valves

by ajp166＠bellatlantic.net

> >Subject: Re: small valves > From: Tore S Bekkedal <toresbe at ifi.uio.no> > Date: Sat, 21 May 2005 18:44:05 +0200 > To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> > >On Mon, 2005-04-25 at 13:39 -0400, Allison wrote: >> Good approach. I enjoy building and winding my own cores >> be they EI iron or powered iron/ferrite types is part of >> that. >Are these cores suitable for use in making data memories? Ie. could one No, their characteristics are all wrong. The Cores I refer to are large by a fact or 15 to as much as 100 time that of cores used for memories. >hypothetically make a core store today, using those cores? Has anyone >done this? Do the current-day cores have better properties for use as >memory than the ones used in past-day cores? The past day cores were very optimized material and have not seen any improvement. As to making a corestore today it's still possible but the small cores needed to attain a 1-2uS cycles time are not common. Allison

20 years, 1 month

OT: Morse Code vs. text messaging, who's faster?

by news＠computercollector.com

>From the email list of the NJ Antique Radio Club: ------------------ Tonight, Friday May 13th, the Tonight Show will feature a message sending/receiving contest between a cell phone text messaging team and a Morse code team. The Morse code team will consist of Chip Margelli, K7JA and Ken Miller, K6CTW. The Tonight Show people called the store yesterday to see if we could come up with two fast Morse operators. Chip and Ken does a lot of contests and DXpeditions. Joe Drago, props manager for the show is KF6OCP. ------------------- Evan speaking again: am I just out of the loop on radio collector terms -- do they have something called the "Tonight Show" -- or do ya'll expect they mean the ACTUAL show with Jay Leno? ----------------------------------------- Evan Koblentz's personal homepage: http://www.snarc.net Also see http://groups.yahoo.com/group/midatlanticretro/ *** Tell your friends about the (free!) Computer Collector Newsletter - 700 readers and no spam / Publishes every Monday / Write for us! - Mainframes to videogames, hardware and software, we cover it all - W: http://news.computercollector.com E: news at computercollector.com

20 years, 1 month

Loading dock south of Boston?

by brian＠quarterbyte.com

Hi Folks, Does anyone know of a loading dock that Norm Aleks and I could use for a few hours next Thursday? We're doing a computer rescue and will be able to save significant shipping bucks if we can UHaul the stuff to a loading dock and wait with it for pickup by a common carrier. We're looking for something southwest of Boston, Norwood area. Could you email directly if you have any idea? We'd much appreciate it. Thanks Brian =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- _| _| _| Brian Knittel _| _| _| Quarterbyte Systems, Inc. _| _| _| Tel: 1-510-559-7930 _| _| _| Fax: 1-510-525-6889 _| _| _| Email: brian at quarterbyte.com _| _| _| http://www.quarterbyte.com

20 years, 1 month

What does PUSHJ do?

by ajp166＠bellatlantic.net

>Subject: Re: What does PUSHJ do? > From: Johnny Billquist <bqt at Update.UU.SE> > Date: Sat, 21 May 2005 12:47:45 +0200 (CEST) > To: cctalk at classiccmp.org > >Ah! That explains it. :-) I do have a PCdos compatable asm that is pretty neat but for little stuff the eyeball does it fast enough. ;) One day when time permits a RS08 equivelent will be made for the 8f and I'll start running real software. >> I've used one that did. Might have been a hack. The 6120 however does >> and the DEC purchase spec is clear on that too. It's still done with IOTs. > >Must have been some additional hardware. One brain cell seems to think >that DEC maybe sold some hardware to implement stacks on the pdp8, but it >might have been the pdp-12 as well. >But yes, the 6120 did have IOTs for that. > >I have several PDP-8/A systems around, but no 6120 systems... I have no PDP-8a. I do have three 6120 based systems, two DECmateIII and a homebrew using the chip. The 6120 is the second generation of the 6100 PDP-8 in CMOS. It adds EMA and stacks via IOTs in hardware. Runs OS/278 flavor of OS/8 well enough. Allison

20 years, 1 month

Help with MicroVax???

by James＠jdfogg.com

> Looks like a MicroVax, having a KA655 CPU, 16MB RAM, running > on 240V, about 1998 vintage. Sorry, dislexia or typing syndrome struck. It about 1989 vintage.

20 years, 1 month

Help with MicroVax???

by James＠jdfogg.com

> I am about to obtain a MicroVax model 655QS-B2... > I was hoping someone could tell me about this machine, and a > good source for documentation and/or information...I know it > does not have a power cord with it, but don't even know what > kind of power cord it takes... > If anyone is willing to help me with a few more questions, I > would appreciate it, as I am very new to the Classic > Computing area (except for some old C-64 and 128 stuff) Thanks > > >From a google... MV3900 SBB:KA655-AA 16MB 240V Looks like a MicroVax, having a KA655 CPU, 16MB RAM, running on 240V, about 1998 vintage. And a picture... http://hampage.hu/vax/e_1989.html Looks like a nice, reasonably modern fast Vax in a digestable size. But you'll have to do something about the 240V.

20 years, 1 month

text-messaging versus morse code - Jay Leno show

by GOOI＠oce.nl

Hi all, if you want to see the show fragment, here is a URL (8,4 Mb) http://n6tv.kkn.net/Text_vs_Morse_Leno_2005_05_13.wmv 73, - Henk, PA8PDP.

20 years, 1 month

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test-drb May 2005