Re: Tape cleaner on eBay

2015-10-06 Thread j...@cimmeri.com
On 10/6/2015 9:43 PM, Ali wrote: Pretty simple--basically, it draws the tape over a carbide or ceramic blade and scrapes loose surface oxide off; pads wipe both sides of the Chuck, Thanks for the explanation. So then you would use this on tape w/o data or w/ data that does not need to be reta

Re: Software for small-memory PDP-11s?

2015-11-13 Thread j...@cimmeri.com
On 11/13/2015 5:45 PM, Josh Dersch wrote: Hey all -- Now that I have my PDP-11/05 running nicely, What did you end up doing to arrive at that functionality? Did I miss some emails? I'm curious what others are running on small systems like this -- until this point I've only played with

Re: To Al Kossow at bitsavers

2015-11-15 Thread j...@cimmeri.com
On 11/14/2015 11:25 PM, Ian Finder wrote: It seems to me that Paul Koning's attitude will lead retrocomputing to die. We can't all own computers that can do interesting things with front-panel programming alone. By his definition, I have committed a lot of "theft" in my days to restore sys

Re: Giving away collection of computers

2015-11-16 Thread j...@cimmeri.com
. . / . - - - . . - . . . On 11/16/2015 9:00 PM, drlegendre . wrote: Guess you'll have to forgive those of us in the "Classicmp enthusiast" group that don't overlap into the "HAM operator" group. I for one had no idea that a member's location could be pinned-down (to within shippin

Re: TU-58

2015-12-02 Thread j...@cimmeri.com
Ugh... Could this thread get any more offensive to people's knowledge.. On 12/2/2015 11:13 AM, Tony wrote: Mathematically, circumference is PI times diameter or 3.14159. times the diameter. On 12/2/2015 11:06 AM, Fred Cisin wrote: On Wed, 2 Dec 2015, Paul Koning wrote: Actually, it's

Re: Maximizing value selling a working 11/34

2015-12-08 Thread j...@cimmeri.com
On 12/8/2015 9:36 AM, Jay West wrote: Noel wrote. - So I know someone who has a working 11/34 ... list it as a whole with a firm number in mind that it must sell for (or better). If t

Re: Maximizing value selling a working 11/34

2015-12-08 Thread j...@cimmeri.com
Well, for one, I wanted to answer because I understand the need to maximize income from a sale, and happen to own the same equipment they're selling. No one here has to buy this system or pay any more than they want to, so I don't see any abuse occurring. You use the word "profit" but th

Re: [cctalk] Re: TOP POSTING

2015-12-11 Thread j...@cimmeri.com
On 12/11/2015 9:33 AM, Kevin Anderson wrote: I used to be an ardent bottom-poster like this list requires, but then I was given one very good reason to switch that I believe is valid and persuasive -- bottom posting (and even inline posting), I understand, is a very royal pain in the arse f

Re: Decisions you regret

2015-12-16 Thread j...@cimmeri.com
On 12/16/2015 4:58 PM, m...@markesystems.com wrote: Yep. Among the things that I have given away (to Goodwill, or possibly Salvation Army) - all in running condition: - A complete HP-1000 system: A600 processor with internal hard drive, serial card + 8-port serial mux, all floppies,

Re: 10 forgotten wonders of 1980s homes

2015-12-29 Thread j...@cimmeri.com
On 12/29/2015 2:08 PM, Jules Richardson wrote: I've wondered occasionally what happened to ghetto blasters - despite finding other audio equipment of the time every once in a while, I don't think I've seen one anywhere in over 25 years. Were they exceptionally fragile or something, and so

Re: 10 forgotten wonders of 1980s homes

2016-01-01 Thread j...@cimmeri.com
On 1/1/2016 1:28 PM, Chuck Guzis wrote: ... So maybe I'll get out of the 1.5/0.800 "Neanderthal" service one of these days. I hope my story helps out other CL customers. --Chuck Oh, don't feel too bad. I've only got 3.0/1.0 via Comcast cable on this semi rural small mountain I live

Re: 10 forgotten wonders of 1980s homes

2016-01-01 Thread j...@cimmeri.com
On 1/1/2016 2:52 PM, Chuck Guzis wrote: On 01/01/2016 11:24 AM, j...@cimmeri.com wrote: Oh, don't feel too bad. I've only got 3.0/1.0 via Comcast cable on this semi rural small mountain I live on. But, I'm happy with it given my bill is $59 / month with basic TV servic

Re: TU58 problems

2016-01-17 Thread j...@cimmeri.com
On 1/17/2016 1:40 PM, tony duell wrote: Incidentally, another reason I am not too keen on using an emulator is that I suspect there could well be logic faults in the CPU and if I am not careful I will just have a long list of unsolved problems, whch can be somewhat disheartenng... Yeah,

Re: Non-baking cure for sticky shed? (being serious for a moment)

2016-01-18 Thread j...@cimmeri.com
On 1/18/2016 11:33 AM, Jon Elson wrote: There was a tape sold by a few manufacturers (I think 3M's was called Black Watch) that had a coarse black matte finish on the back side. A problem with some drives which had fast rewind speeds was that air was trapped in the tape wind, and then on

Re: Non-baking cure for sticky shed? (being serious for a moment)

2016-01-18 Thread j...@cimmeri.com
On 1/18/2016 12:46 PM, Jon Elson wrote: Longevity of tapes was very spotty. Some expensive, name-brand tapes just disintegrated after a few years. Others have held up amazingly well. Yeah, I think even among the same brand / model. Like I've heard bad things about Black Watch before t

Re: Preferred way of substituting TFT for CRT Monitor?

2016-01-18 Thread j...@cimmeri.com
On 1/18/2016 10:51 AM, martin.heppe...@dlr.de wrote: this machine has a 98204B video board (intended to work with a 35721 monitor, which I don't have). I have not yet found the specs for its composite signal. It's around 25khz. The 98204B is normally used with the 35721 or 35731 640x400

Re: VT100 PSU smelling.

2016-01-22 Thread j...@cimmeri.com
On 1/22/2016 2:54 PM, Mattis Lind wrote: Short: R27 in my VT100 PSU is hot and smelling. Why? Long: I think it has been 20 years since I powered up this VT100 so I did it carefully. Used a Variac and a bench supply. It switched just fine and delivered the steady 5V out when the input was at appr

Re: VT100 PSU smelling.

2016-01-22 Thread j...@cimmeri.com
On 1/22/2016 6:56 PM, Mattis Lind wrote: 2016-01-22 21:48 GMT+01:00 j...@cimmeri.com: On 1/22/2016 2:54 PM, Mattis Lind wrote: Short: R27 in my VT100 PSU is hot and smelling. Why? Long: I think it has been 20 years since I powered up this VT100 so I did it carefully. Used a Variac and a

Re: VT100 PSU smelling.

2016-01-23 Thread j...@cimmeri.com
On 1/23/2016 5:40 AM, Mattis Lind wrote: This is a 0.0033 uF 1600VDC SPARAGUE capacitor. It looks nice and orange and there are no signs of cracks whatsoever. What is the likelihood of this being bad? Not highly likely, but possible. Just put another one in temporarily and see if it solv

Re: ESR meter recommendations.

2016-01-23 Thread j...@cimmeri.com
On 1/23/2016 9:22 AM, Mattis Lind wrote: Yes. agree with you.I really should get oneWhat meter do you have and recommend? I use the BLUE ESR Meter of AnaTek Corp (designed by Bob Parker). I've been using it for several years and really like it. - J.

Re: What to Do with a PS/2?

2016-01-27 Thread j...@cimmeri.com
On 1/27/2016 8:42 AM, Liam Proven wrote: I actually bought OS/2 with my own money. I was always extremely averse to doing that. It was good for its time, but NT 3.x was technically superior, just lacking in the UI department. Correct me if I'm remembering incorrectly (probably am), but wasn

Re: What to Do with a PS/2?

2016-01-27 Thread j...@cimmeri.com
On 1/27/2016 1:14 PM, John Willis wrote: Correct me if I'm remembering incorrectly (probably am), but wasn't NT a descendent of DEC VMS? As I understand it - an important caveat here - Windows NT was to some extent a conceptual descendent of VMS, but that was more because the same person was i

Re: Can Windows 98SE run on an Intel I7 with SATA hard drives?

2016-01-29 Thread j...@cimmeri.com
On 1/28/2016 8:37 PM, Chuck Guzis wrote: On faster, more modern systems, I use VirtualBox. Just not worth the extra trouble finding drivers--but I suspect 98SE will run on P4 systems as well. The one thing I'm not seeing mentioned in re VirtualBox is that what if you have a legacy Win

Re: Can Windows 98SE run on an Intel I7 with SATA hard drives?

2016-02-04 Thread j...@cimmeri.com
On 2/4/2016 8:08 AM, Liam Proven wrote: Nothing older than Win7 on any Windows PC that accesses the Internet. This includes email. Well, my 2 cents: I still use WinXP for all my primary, workhorse machines. Rarely have any issues with it.Win7 is ok but annoyingly over-user-friendly.

Re: Calibration of 8" floppy drive?

2016-02-06 Thread j...@cimmeri.com
On Feb 5, 2016, at 21:46, Dan K <100dash...@gmail.com> wrote: Are there any good alternative solutions I can do to replace it? I'm sure I don't want the plastic touching the disk media. I use felt cleaning pellets for a .20 caliber pellet gun, and cut them to size. - j.

Re: Farewell and thanks!

2016-02-06 Thread j...@cimmeri.com
On 2/6/2016 10:22 AM, Liam Proven wrote: On 5 February 2016 at 23:54, Steven Hirsch wrote: I've finally had my fill of the general grumpiness and bluntly worded interactions on this list. Over the years I have learned a lot and would like to particularly express my thanks to Tony Duell, Fred

Re: VAX 11/730 quickie

2016-02-20 Thread j...@cimmeri.com
On 2/20/2016 7:03 PM, Mike Ross wrote: I might just try all switches *closed* on the basis that maybe it was wired wrong but... no doesn't make sense; the system would have been operational when decommissioned; the switch settings as I received it must be valid... Make sure the switches are act

Re: Front Panels - PDP8 and PDP 11

2016-03-09 Thread j...@cimmeri.com
On 3/9/2016 1:03 PM, couryho...@aol.com wrote: In a message dated 3/2/2016 3:32:48 P.M. US Mountain Standard Time, rodsmallwoo...@btinternet.com writes: ... The only process deviations I have allowed myself are as follows: Rod, very interesting! Do you have a description of the full pr

Re: Which RT-11 for an 11/03

2016-03-10 Thread j...@cimmeri.com
On 3/10/2016 8:24 PM, Richard Cini wrote: Ok, I spent some time trying this again, and here’s what I did. The system is very basic — LSI-11 CPU, 32kw of RAM and two SLU cards. Have you checked your SLU addresses and vectors to be sure they're standard values (ie. what RT11 is expecting)? I r

Re: Which RT-11 for an 11/03

2016-03-10 Thread j...@cimmeri.com
On 3/10/2016 8:57 PM, Richard Cini wrote: Maybe I’ll re-create the image again and see if that helps. I’m using the RT11v4 image from the SIMH distribution and it boots just fine (as an RK05 image) under SIMH. Rich Try making an RL02 image from the RK05 image in SIMH and booting from that (i

Re: Which RT-11 for an 11/03

2016-03-10 Thread j...@cimmeri.com
On 3/10/2016 9:36 PM, Richard Cini wrote: Separately… John — the SLUs are at what I think are the standard addresses and vectors (per the Heathkit and DLV11-J manuals) and the ODT and TU58EM work. I don’t know what RT-11 is looking for but the console @ 177560/60 and TU58 @ 176500/300 (Channel

Re: VMS 4.4 source code microfiche

2016-03-12 Thread j...@cimmeri.com
Can that scanner produce anything other than massive .png files? - J. On 3/11/2016 9:12 PM, devin davison wrote: Well, I have the scanner and the time, I am going to put in online anyways. It may not be the full source, but perhaps it will come in handy for someone else. I only spent a few

Re: A gold mine for anybody in Austin...

2016-03-13 Thread j...@cimmeri.com
Chances are, you'll waste a lot of your time dealing with nothing but trepidation, and get nowhere with what is probably NOT a gold mine.. but a hoarder junk mine. Seriously, who writes meandering, confused ads like that, that don't even state what they have and prices? You'll very often see

Re: Bitcoining on a 1401

2015-05-28 Thread j...@cimmeri.com
On 5/28/2015 1:05 PM, emanuel stiebler wrote: On 2015-05-28 12:00, Fred Cisin wrote: On Thu, 28 May 2015, jwsmobile wrote: I saw this article over on the Hercules group, and was amused. http://www.righto.com/2015/05/bitcoin-mining-on-55-year-old-ibm-1401.html Is the bitcoin output anywhere

Re: More on manuals plus rescue

2015-08-19 Thread j...@cimmeri.com
On 8/19/2015 11:52 AM, Jason Scott wrote: In closing, I might ask you to consider taking your sweet time getting this stuff online. There are still some manual dealers out there. Let them handle the decline of their business in whatever way they see fit. All of them know it is just a matter of

Re: MEM11 Status Update

2015-08-31 Thread j...@cimmeri.com
On 8/30/2015 1:08 AM, Guy Sotomayor wrote: The MEM11 is a multi-function memory board for Unibus based PDP-11 computers. It contains: * 128KW memory * Emulates console ROM & boot ROMs * 2 SLUs (DL11s) * KW11K * KW11P * KW11L * KW11W * RF11 (emulating up to 8 RS11 disks) * KE11 G

Re: Worst Video Game Ever was Re: Sales of unearthed Atari games total more than $100,000

2015-08-31 Thread j...@cimmeri.com
On 8/31/2015 12:56 PM, et...@757.org wrote: "3.5 million of the 4 million produced were sent back to the company as unsold inventory or customer returns. Despite sales figures, the quantity of unsold merchandise, coupled with the expensive movie license and the large amount of returns, ma

Re: MEM11 Status Update

2015-09-02 Thread j...@cimmeri.com
On Tue, Sep 1, 2015 at 11:39 AM, Jay Jaeger wrote: On 9/1/2015 10:01 AM, Ethan Dicks wrote: run Unix V1 I am very interested in the MEM11 for this exact reason. I have a PDP-11/20 that I'd love to do this with. You could also try Mini-Unix on your 11/20, which might support a wider ran

Re: MEM11 Status Update

2015-09-02 Thread j...@cimmeri.com
run Unix V1 I am very interested in the MEM11 for this exact reason. I have a PDP-11/20 that I'd love to do this with. [Ethan Dicks] You could also try Mini-Unix on your 11/20, which might support a wider range of devices. [Jay Jaeger] Very interesting. Does Guy's MEM11 provide wh

Re: Problem with RF73 DSSI disk

2015-09-04 Thread j...@cimmeri.com
On 9/4/2015 5:41 PM, Johnny Billquist wrote: On 2015-09-05 00:31, Holm Tiffe wrote: Let me live the rest of my time like a child playing with old computers, that's exactly why we are here; nothing else matters. I know that people trying to help, trust me, I'm doing that in other, cases

Re: Problem with RF73 DSSI disk

2015-09-05 Thread j...@cimmeri.com
On Fri, 4 Sep 2015, j...@cimmeri.com wrote: culture re what is offensive. His remarks did not bother me because they were "typically German." Maybe me saying that will offend Holm... lol... On 9/5/2015 5:40 AM, Christian Corti wrote: Hey, they weren't "typi

Re: Problem with RF73 DSSI disk

2015-09-05 Thread j...@cimmeri.com
On 9/5/2015 8:02 AM, Mouse wrote: I think it where much more helpful to answer things like "Sorry don't know, never had todo with that", vs. simply saying nothing at all, leaving the man that looks for help alone. As a bystander, I would much rather see silence than some forty or fifty "sorry

Re: 21MX proms (per request)

2015-09-07 Thread j...@cimmeri.com
On 9/8/2015 12:28 AM, Marc Verdiell wrote: Thanks for the answers everyone, I am writing everything down... Marc Nice to hear that people are still *writing* things down... - J.

Re: PDP-11/05 restoration project - anyone has a M7810 or M781?

2015-09-27 Thread j...@cimmeri.com
On 9/27/2015 2:56 PM, tony duell wrote: The plan is to get it to work with the 8kW core memory, M7800 connected to a good old teletype and PC05 paper-tape reader / punch and then run paper tape BASIC on it or other paper tape software. The problem is that I am lacking in the M7810 board. Sin

Re: PDP-11/10 repair started

2015-10-05 Thread j...@cimmeri.com
On 10/5/2015 10:24 AM, Henk Gooijen wrote: = Sorry for the delayed answer, I don't have email available at work -:/ I have one M930 in slot 3 position A-B, because that is the termination for the processor. I am pretty sure (not 100%) that I also have an M930 in slot 9 position A-

Re: A fruitfull evening

2016-04-12 Thread j...@cimmeri.com
On Apr 12, 2016, at 8:19 PM, drlegendre . wrote: "I suppose it might do that, but that's not its main purpose. Its main purpose is to loosen rusted and otherwise stuck fasteners and shafts." That is *not* the main purpose of WD-40, nor does it even work well for that purpose *at all*.R

Re: [OT] eBay tale (Was: Re: flea markets (was Re: Vintage Computer Festivals???))

2016-04-20 Thread j...@cimmeri.com
On 4/20/2016 11:04 AM, Mark J. Blair wrote: On Apr 19, 2016, at 10:09, Ali wrote: Well, eBay is killing itself slowly. Every year they make more and more onerous and anti-buyer rules and policies. Warning: Longish anti-eBay tale inbound! ... While I am disappointed that I can apparently nev

Re: General Question about UNIBUS backplanes

2016-05-24 Thread j...@cimmeri.com
On 5/24/2016 8:37 AM, william degnan wrote: ... I fixed the core problem I described in my email. ... Bill B, what was the issue with the core, that you fixed it so fast? - J.

Re: http://hackaday.com/2016/05/29/dragging-teletypes-into-the-21st-century

2016-05-29 Thread j...@cimmeri.com
On 5/29/2016 7:02 PM, Fred Cisin wrote: On Sun, 29 May 2016, wulfman wrote: http://hackaday.com/2016/05/29/dragging-teletypes-into-the-21st-century/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+hackaday%2FLgoM+%28Hack+a+Day%29&utm_content=FeedBurner+user+view -- The contents of

Re: NEC ProSpeed 386

2016-05-31 Thread j...@cimmeri.com
On 5/31/2016 2:01 PM, Chuck Guzis wrote: On 05/31/2016 11:21 AM, Dave Wade wrote: I don't like the Model "M" keyboard. It's a bit like wanting a tracker organ rather than my Yamaha EL90. The keys require significant pressure to operate and if you are not used to it its actually hard work...

Re: PDP-11/94-E

2016-06-02 Thread j...@cimmeri.com
On 6/2/2016 3:18 PM, Rod Smallwood wrote: OK Here's what I did 1. Jumpers on underside of board all on 2. KDJ11-E in first slot 3. APM in second slot connected to CPU 4. nothing in slot 3 5. Unibus Control card in slot 4 6. RX02 Control card in slot 5 7 Bus Grant in 6,7 and 8 8 Bus te

Re: PDP-11/94-E

2016-06-02 Thread j...@cimmeri.com
What are you using as a terminal? - J. On 6/2/2016 6:25 PM, Rod Smallwood wrote: Well I could use the wifes iPad to record the VT100's screen as a video Rod Do you have any way to capture a session log of what you're doing, and paste it here? Hard to follow. - J.

Re: Accessing a TK50 or TK70 from RT

2016-06-12 Thread j...@cimmeri.com
On 6/12/2016 12:00 PM, Rod Smallwood wrote: On 12/06/2016 16:19, Jerome H. Fine wrote: >Rod Smallwood wrote: Firstly one important fact that I did not know. If you bulk erase a TK50 you can turn it into a TK70 tape with an INIT. Thank you I did not know that. A bulk er

Re: Accessing a TK50 or TK70 from RT

2016-06-12 Thread j...@cimmeri.com
On 6/12/2016 2:49 PM, Rod Smallwood wrote: On 12/06/2016 19:18, j...@cimmeri.com wrote: On 6/12/2016 12:00 PM, Rod Smallwood wrote: On 12/06/2016 16:19, Jerome H. Fine wrote: I still have a few RD53 drives around which I stopped using. I also converted a couple of Micropolis

Re: Power cable identification

2016-06-26 Thread j...@cimmeri.com
On 6/26/2016 10:56 AM, Brent Hilpert wrote: On 2016-Jun-25, at 8:09 PM, Josh Dersch wrote: What is the name of the rounded, 3-pin power connector often seen on early test equipment (I've seen it on older HP and Fluke stuff)? I have an S-100 chassis that inexplicably uses one, despite dating

Re: Latest addition: A bondi-blue iMac

2016-07-01 Thread j...@cimmeri.com
On 7/1/2016 9:00 AM, Ethan Dicks wrote: On Thu, Jun 30, 2016 at 9:09 PM, Terry Stewart wrote: Some would say this is not vintage, classic or collectible (and so shouldn't be discussed here). However, these are all subjected terms which can be (and are!) argued about at length. Wouldn't h

Re: Latest addition: A bondi-blue iMac

2016-07-01 Thread j...@cimmeri.com
On 7/1/2016 11:48 AM, Ian Finder wrote: The original iMac is old enough to vote... And besides, I don't think drawing a chronological line in the sand is necessarily sensible. Just don't violate the spirit of classic computing? (A G5 tower that you run Linux on is not classic computing, for in

Re: Running CRTs without implosion protection glass

2016-07-01 Thread j...@cimmeri.com
On 7/1/2016 2:03 PM, Toby Thain wrote: On 2016-07-01 2:46 PM, Ian Finder wrote: That was my thought too- color CRTs are where this really mattered- which is why I mentioned black and white. I am not overly concerned, someone in the IRC channel I'm in asked and I thought I'd ping. Even then,

Re: Latest addition: A bondi-blue iMac

2016-07-01 Thread j...@cimmeri.com
On 7/1/2016 2:33 PM, Fred Cisin wrote: "I wasn't here for the last XXX number of times that that flamewar raged" is not an acceptable reason to deliberately re-ignite it. It is an easy, fully objective parameter for OLD machines, not for "classic" machines, which is subjective. If you w

Re: Second release of the HP 3000 Series III simulator

2016-07-07 Thread j...@cimmeri.com
As always, amazing, Dave! - J. On 7/7/2016 10:36 AM, J. David Bryan wrote: The second release of the HP 3000 Series III simulator is now available from the Computer History Simulation Project (SIMH) site: https://github.com/simh/simh This release adds a simulation of the HP 2607, 2613, 26

Re: DEC and Emulex boards

2016-07-18 Thread j...@cimmeri.com
On 7/18/2016 7:07 PM, Jules Richardson wrote: I hear that the PSUs that went with the systems these boards came from might still survive (they did as of last week, anyway), but the word is that everything else - drives, racks, cables etc. - went to landfill long ago. Landfill? Or metals

Re: Possibly rarest Apple 1 ever for auction

2016-07-21 Thread j...@cimmeri.com
On 7/21/2016 3:42 PM, Evan Koblentz wrote: Possibly the rarest Apple 1 ever is up for auction. The seller is working through CharityBuzz, which will display the computer at VCF West next month. CB's auction site: http://apple1.charitybuzz.com/ MacRumors covered it: http://www.macrumor

Re: memory map for RT-11 v 5

2016-07-24 Thread j...@cimmeri.com
On 7/24/2016 10:06 AM, william degnan wrote: ... One thing to remember is 16KW in a pdp11 is not the same thing that simh refers to when one sets the CPU to 16K. WWW do not all make this distinction clearly. I get it, just making this comment for future readers of this thread. Bill What

Question re Teac MT-2ST encoder roller tire

2016-07-29 Thread j...@cimmeri.com
Recently acquired a Teac MT-2ST SCSI cassette tape drive and am attempting to recondition it. Although it does have direct drive motors on both reels (no rubber bands), the design is still plagued by having a rubber roller "tire" on its encoder roller which has turned to a very sticky goo f

Re: Question re Teac MT-2ST encoder roller tire

2016-07-30 Thread j...@cimmeri.com
On 7/29/2016 2:29 PM, Chuck Guzis wrote: On 07/29/2016 12:07 PM, j...@cimmeri.com wrote: Recently acquired a Teac MT-2ST SCSI cassette tape drive and am attempting to recondition it. Although it does have direct drive motors on both reels (no rubber bands), the design is still plagued by

Are old SCSI tape drives not all created equal?

2016-08-17 Thread j...@cimmeri.com
Hi, folks. I'm experimenting with various old SCSI tape drives to see which will work with my PDP-11/34 with an Emulex SCSI card. To my surprise, not all SCSI tape drives are created equal. I was under the mistaken assumption that all SCSI tape drives would pretty much be abstracted

Re: Beaten by VT100 PSU.

2016-08-17 Thread j...@cimmeri.com
On 8/17/2016 1:19 PM, tony duell wrote: More load _reduces_ the ripple? That's very unusual. Perhaps a parasitic oscillation that's defeated by more load because now the loop gain is below 1? But loading the +5V output also reduces the ripple on the +12V output. Loading the +5V output would,

Re: Are old SCSI tape drives not all created equal?

2016-08-17 Thread j...@cimmeri.com
Thanks very much, Mouse, Paul, Maciej, and Guy for helping me understand my SCSI tape drives. I had no idea! - John

Re: Are old SCSI tape drives not all created equal?

2016-08-17 Thread j...@cimmeri.com
On 8/17/2016 2:38 PM, Chuck Guzis wrote: On 08/17/2016 11:07 AM, j...@cimmeri.com wrote: I'm experimenting with various old SCSI tape drives to see which will work with my PDP-11/34 with an Emulex SCSI card. To my surprise, not all SCSI tape drives are created equal. I was unde

Re: Are old SCSI tape drives not all created equal?

2016-08-19 Thread j...@cimmeri.com
On 8/17/2016 6:17 PM, Chuck Guzis wrote: On 08/17/2016 02:59 PM, j...@cimmeri.com wrote: Hi, Chuck. Excellent question -- and they do respond per your minimum, but beyond that, I'm not sure. When a drive wouldn't work, I only thought to check for unit ready, unit identify, and t

Re: Are old SCSI tape drives not all created equal?

2016-08-19 Thread j...@cimmeri.com
On 8/19/2016 2:16 PM, Chuck Guzis wrote: On 08/19/2016 11:18 AM, Al Kossow wrote: apparently it isn't SCSI http://oldcomputer.info/media/teac/index.htm But the product spec about says (top of PDF page 6): Interface: In compliance with SCSI ANSI X3.131-1986 ..and the remainder of the docume

Re: Are old SCSI tape drives not all created equal?

2016-08-19 Thread j...@cimmeri.com
http://oldcomputer.info/media/teac/index.htm On 8/19/16 11:08 AM, Chuck Guzis wrote: On 08/19/2016 09:24 AM, j...@cimmeri.com wrote: Where might I find information on how to form SCSI command data blocks so as to try the above commands? I sent just an "01" to the TEAC MT-2ST, and i

Re: Are old SCSI tape drives not all created equal?

2016-08-21 Thread j...@cimmeri.com
On 8/19/2016 1:08 PM, Chuck Guzis wrote: On 08/19/2016 09:24 AM, j...@cimmeri.com wrote: Where might I find information on how to form SCSI command data blocks so as to try the above commands? I sent just an "01" to the TEAC MT-2ST, and it did rewind.. John, what's

Re: Are old SCSI tape drives not all created equal?

2016-08-21 Thread j...@cimmeri.com
ot;discuss...@classiccmp.org:On-Topic and Off-Topic Posts" Sent: Sunday, August 21, 2016 1:12 PM Subject: Re: Are old SCSI tape drives not all created equal? On 8/19/2016 1:08 PM, Chuck Guzis wrote: On 08/19/2016 09:24 AM, j...@cimmeri.com wrote: Where might I find information on how to form SC

Re: Are old SCSI tape drives not all created equal?

2016-08-21 Thread j...@cimmeri.com
On 8/21/2016 12:46 PM, Chuck Guzis wrote: On 08/21/2016 10:12 AM, j...@cimmeri.com wrote: The final matter is that I'd still like to get the Teac to function with some software, just to watch it operate (you have to really like mechanical things to understand this strange fascin

Re: Are old SCSI tape drives not all created equal?

2016-08-21 Thread j...@cimmeri.com
On 8/21/2016 6:15 PM, Al Kossow wrote: On 8/21/16 4:08 PM, Chuck Guzis wrote: 8mm (Exabyte) drives have a pretty good chance of survival nope, the transport has rubber rollers that crack, and little rubber belts. Al, Is that true for both the full height and half height models? - John

Re: Turbo Pascal v3.01a for CP/M...

2016-08-23 Thread j...@cimmeri.com
Gene, see attached. Is that right? - John On 8/23/2016 11:10 AM, geneb wrote: I'm not after a generic Pascal. It has to be Borland's Turbo Pascal, v3.01a for CP/M. tnx. g.

Re: Halt and Catch Fire Tonight

2016-08-24 Thread j...@cimmeri.com
On 8/24/2016 10:50 AM, et...@757.org wrote: Cool. I supplied all of the magazines (1986) covers for this season. Look on the office tables, etc. I have these available (images not the actual mags) if anyone else wants them. Let me know privately. Bill Awesome I just did some rese

Re: Halt and Catch Fire Tonight

2016-08-24 Thread j...@cimmeri.com
On 8/24/2016 11:52 AM, Geoff Oltmans wrote: On Aug 24, 2016, at 11:06 AM, j...@cimmeri.com wrote: I don't think it's the retro computers that are the subject, but rather, the pioneering efforts and often flamboyant personalities involved. - John Here I was thinking it was a pe

Re: Are old SCSI tape drives not all created equal?

2016-08-26 Thread j...@cimmeri.com
On 8/21/2016 6:47 PM, Chuck Guzis wrote: On 08/21/2016 04:15 PM, Al Kossow wrote: nope, the transport has rubber rollers that crack, and little rubber belts. That's the transport; but what are the shortcomings of the medium itself? FWIW, I've got at least one DDS drive with rubber parts th

Re: Repairing Tape Leader Damage in TK70 Drive

2016-08-26 Thread j...@cimmeri.com
Are they still for sale? On 8/26/2016 2:12 PM, Mark Wickens wrote: I tried fashioning my own leaders from various materials but could never find one robust and flexible enough compared to the originals, so did in the end resort to buying a stock. On 26 August 2016 at 19:23, shad wrote:

Re: The huge lot that had the NIB 8" floppies is now on ebay

2016-09-05 Thread j...@cimmeri.com
If there's ever a vote taken up for whether to ban the constant billboarding of ebay ads here, I'm for "ban." People who know how to use ebay do not need help finding things on ebay. On 9/5/2016 10:31 PM, Electronics Plus wrote: http://www.ebay.com/itm/-/191960867958 Apparently the buy

Re: The huge lot that had the NIB 8" floppies is now on ebay

2016-09-06 Thread j...@cimmeri.com
On 9/5/2016 11:49 PM, Mark Linimon wrote: On Mon, Sep 05, 2016 at 10:56:24PM -0500, j...@cimmeri.com wrote: If there's ever a vote taken up for whether to ban the constant billboarding of ebay ads here, I'm for "ban." I would subscribe to a spin-off list that was merel

Re: The huge lot that had the NIB 8" floppies is now on ebay

2016-09-06 Thread j...@cimmeri.com
On 9/6/2016 9:51 AM, Jason Howe wrote: On 09/06/2016 04:31 AM, Rob Jarratt wrote: Some of us find them useful or interesting. I agree. The volume of these eBay emails is not high. It would be another matter if there were really a lot of these emails, but as it is I find them useful/i

Re: Logic Analyser Advice

2016-09-10 Thread j...@cimmeri.com
On 9/10/2016 3:34 AM, Rob Jarratt wrote: -Original Message- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Noel Chiappa Sent: 10 September 2016 02:54 To: cctalk@classiccmp.org Cc: j...@mercury.lcs.mit.edu Subject: Re: Logic Analyser Advice The key for me was to find

Re: G4 cube (was Re: 68K Macs with MacOS 7.5 still in production use...)

2016-09-12 Thread j...@cimmeri.com
Why in your opinion was it a failed experiment? I had one and liked it very much. - J. On 9/12/2016 3:15 PM, Al Kossow wrote: Put it this way. The product manager for the cube was the first person I know of who had one as a kleenex dispenser. It was a failed industrial design experiment th

Re: early networking (was Re: G4 cube (was Re: 68K Macs with MacOS 7.5 still in production use...))

2016-09-14 Thread j...@cimmeri.com
On 9/14/2016 8:50 AM, Liam Proven wrote: On 14 September 2016 at 03:08, Chuck Guzis wrote: There were networking packages for the PC early on. Remember Banyan? They date from 1985. Corvus? Even Datapoint had an ARCnet facility for PCs in 1984. Quite a few vendors had 802.3 capability. Ne

Re: early networking (was Re: G4 cube (was Re: 68K Macs with MacOS 7.5 still in production use...))

2016-09-14 Thread j...@cimmeri.com
On 9/14/2016 11:04 AM, william degnan wrote: On Wed, Sep 14, 2016 at 11:56 AM, j...@cimmeri.com wrote: I too started in 1988, doing the same kind of work (mid-Atlantic region, USA), same number and types of places. Just to compare: * Banyan VINES(never saw) * Corvus (saw

Re: Subjects, Topics and Threading

2016-09-14 Thread j...@cimmeri.com
On 9/14/2016 4:58 PM, Dale H. Cook wrote: At 05:42 PM 9/14/2016, Steven M Jones wrote: How do you justify making everybody conform to your preferred behavior? I don't, but the behavior and archiving of this list is bound by the software that it runs under. Dale H. Cook, Contract IT Adminis

Meaning of "architecture width" - Re: 68K Macs with MacOS 7.5 still in production use...

2016-09-15 Thread j...@cimmeri.com
On 2016-09-15 2:38 PM, Noel Chiappa wrote: > From: Chuck Guzis > Call it anything you want, but we know what Motorola called it. The _first implementation_ may have been 16-bit, but I am in no doubt whatsover (having written a lot of assembler code for the 68K family) that the _architec

Re: ka... ching!

2016-10-01 Thread j...@cimmeri.com
On 10/1/2016 9:19 AM, Al Kossow wrote: http://www.ebay.com/itm/291894250804 I don't get it. Would someone explain to me how a couple of old, dirty, untested, belt driven floppy drives are worth this kind of money? And why?? There's actual bidding going on. That's not just an asking pric

Re: ka... ching!

2016-10-01 Thread j...@cimmeri.com
On 10/1/2016 9:54 AM, Adrian Graham wrote: On 01/10/2016 15:42, "j...@cimmeri.com" wrote: On 10/1/2016 9:19 AM, Al Kossow wrote: http://www.ebay.com/itm/291894250804 I don't get it. Would someone explain to me how a couple of old, dirty, untested, belt driven floppy drives

Re: ka... ching!

2016-10-01 Thread j...@cimmeri.com
On 10/1/16 8:12 AM, j...@cimmeri.com wrote: Ok, you just gave a bunch of reasons why they're even more worthless than I originally thought, and why people bidding on them have clearly lost their marbles. :) - J. On 10/1/2016 10:21 AM, Al Kossow wrote: Going price nowadays for a Lisa

Re: ka... ching!

2016-10-01 Thread j...@cimmeri.com
On 10/1/2016 3:21 PM, N0body H0me wrote: -Original Message- From: ccl...@sydex.com Sent: Sat, 1 Oct 2016 11:12:02 -0700 To: cctalk@classiccmp.org Subject: Re: ka... ching! On 10/01/2016 08:27 AM, j...@cimmeri.com wrote: But, like airplanes and boats, this looks like only a rich

Re: ka... ching!

2016-10-01 Thread j...@cimmeri.com
On 10/1/2016 6:38 PM, Adrian Graham wrote: On 01/10/2016 23:52, "Santo Nucifora" wrote: For those who are bidding on the twiggy drives, you can have a Lisa 1 faceplate here: http://www.ebay.com/itm/like/62204758 and a matching Lisa 1 mouse here: http://www.ebay.com/itm/172360487433 Hel

Re: Twiggys [was: Re: ka... ching!]

2016-10-07 Thread j...@cimmeri.com
On 10/7/2016 5:21 PM, Chuck Guzis wrote: On 10/07/2016 03:12 PM, Al Kossow wrote: ouch! this is about 2x what I thought they would go for On 10/1/16 7:19 AM, Al Kossow wrote: http://www.ebay.com/itm/291894250804 That simply defies logic. I *really* don't get this collecting business. --C

Re: Twiggys [was: Re: ka... ching!]

2016-10-07 Thread j...@cimmeri.com
On 10/7/2016 7:38 PM, Kevin Griffin wrote: This guy was spot on about if his Lisa1 had Twiggys http://sfbay.craigslist.org/scz/sys/5797104896.html Kevin How does this SF guy so confidently know --> $30k plus?Is there a place where these Lisas regularly sell for that? - J.

Re: ka... ching!

2016-10-07 Thread j...@cimmeri.com
On 10/1/2016 5:52 PM, Santo Nucifora wrote: For those who are bidding on the twiggy drives, you can have a Lisa 1 faceplate here: http://www.ebay.com/itm/like/62204758 and a matching Lisa 1 mouse here: http://www.ebay.com/itm/172360487433 These are a little on the expensive side too :)

Re: Twiggys [was: Re: ka... ching!]

2016-10-08 Thread j...@cimmeri.com
On 10/8/2016 6:06 AM, Corey Cohen wrote: ... So does this mean you should hoard everything you have until the price goes up? I don't have a crystal ball to tell you what is the next item of value. Who knew that a movie about the Tucker automobile would make a Tucker one of the most desira

Re: Twiggys [was: Re: ka... ching!]

2016-10-08 Thread j...@cimmeri.com
On 10/8/2016 11:22 AM, Corey Cohen wrote: On Oct 8, 2016, at 12:07 PM, "j...@cimmeri.com" wrote: The fact that a friggin' *movie* raises the value of something, also really irks me. How did movies ever become the be-all, end-all? I'm sure others are irked as well

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