Re: PDP-11/20 vd one that just says pdp 11 what are the date differences?? OEM?

2016-03-01 Thread Michael Thompson
> > Date: Fri, 26 Feb 2016 07:21:13 -0500 (EST) > From: j...@mercury.lcs.mit.edu (Noel Chiappa) > Subject: Re: PDP-11/20 vd one that just says pdp 11 what are the date > differences?? OEM? > > That's an -11/15, then. The -11/20 has a KA11 processor. So the front panel > just says "pdp-11"?

Random VGA question: 160x200 "high color" mode?

2016-03-01 Thread Josh Dersch
Awhile back a "pre-alpha" version of the PC classic "DOOM" was unearthed (dated Feb 28, 1993), and it claims to support a "high color" VGA mode. From the README.TXT: "Use High-color DAC (160 x200, but great color!) (Only newer VGA cards have this-if it looks OK, ya got it)

Re: Algorithmic pricing gone critical - Re: PDP-10 programming [was RE: Dumb Terminal games (was Re: Looking for a small fast VAX development machine)]

2016-03-01 Thread william degnan
On Mar 1, 2016 8:19 PM, "Toby Thain" wrote: > > On 2016-03-01 7:36 PM, Sean Conner wrote: >> >> It was thus said that the Great Rich Alderson once stated: >>> >>> >>> For most hobbyists, even $100 is too much. I was simply astounded at the >>> chutzpah of the seller--right there on the Amazon lis

Re: PDP-10 programming [was RE: Dumb Terminal games (was Re: Looking for a small fast VAX development machine)]

2016-03-01 Thread Alan Perry
I loaned Rich my big bag of DECsystem-20 docs, including the Gorin book, from my days as a systems programmer on a couple of -20s in college. Guess I should have taken a deposit or some ID ;) I had some time to kill in SoDo and went to LCM for the first since it opened to the public. I tried to

RE: Needs help w/ diagnosing and hopefully repairing of a DEC Tape Drive

2016-03-01 Thread Ali
Shad and Tony, Thank you very much for the information and advice. I spoke further to the seller and he wants the broken drive back. As there is no guarantee I can fix this I am going to return the drive to the seller. -Ali

Re: PDP-10 programming [was RE: Dumb Terminal games (was Re: Looking for a small fast VAX development machine)]

2016-03-01 Thread Ian S. King
On Tue, Mar 1, 2016 at 5:11 PM, Brent Hilpert wrote: > On 2016-Mar-01, at 4:36 PM, Sean Conner wrote: > > It was thus said that the Great Rich Alderson once stated: > >> > >> For most hobbyists, even $100 is too much. I was simply astounded at > the > >> chutzpah of the seller--right there on th

Algorithmic pricing gone critical - Re: PDP-10 programming [was RE: Dumb Terminal games (was Re: Looking for a small fast VAX development machine)]

2016-03-01 Thread Toby Thain
On 2016-03-01 7:36 PM, Sean Conner wrote: It was thus said that the Great Rich Alderson once stated: For most hobbyists, even $100 is too much. I was simply astounded at the chutzpah of the seller--right there on the Amazon list--who was asking nearly $1500 for a copy. I think that comes

Re: PDP-10 programming [was RE: Dumb Terminal games (was Re: Looking for a small fast VAX development machine)]

2016-03-01 Thread Brent Hilpert
On 2016-Mar-01, at 4:36 PM, Sean Conner wrote: > It was thus said that the Great Rich Alderson once stated: >> >> For most hobbyists, even $100 is too much. I was simply astounded at the >> chutzpah of the seller--right there on the Amazon list--who was asking >> nearly $1500 for a copy. > > I

Re: PDP-10 programming [was RE: Dumb Terminal games (was Re: Looking for a small fast VAX development machine)]

2016-03-01 Thread Sean Conner
It was thus said that the Great Rich Alderson once stated: > > For most hobbyists, even $100 is too much. I was simply astounded at the > chutzpah of the seller--right there on the Amazon list--who was asking > nearly $1500 for a copy. I think that comes from an unchecked computer algorithm, n

RE: PDP-10 programming [was RE: Dumb Terminal games (was Re: Looking for a small fast VAX development machine)]

2016-03-01 Thread Rich Alderson
From: Glen Slick Sent: Monday, February 29, 2016 7:43 PM > On Feb 29, 2016 5:07 PM, "Rich Alderson" > wrote: >> From: David Griffith >> Sent: Friday, February 26, 2016 4:05 PM >>> One of my ongoing wish projects is to learn to program a pdp-10 so I can >>> port Frotz to it. >> The canonical te

Re: Precision Instruments PI1200 7 track tape drive, interest anyone?

2016-03-01 Thread Gerry Schlosser
Hello Mattis, We do have interest in the 7 track drive. Is it still available? Gerry Schlosser Absolute Imaging Inc. Suite 400, 1011-1st Street S.W. Calgary, Alberta, Canada T2R 1J2 ge...@absoluteimaging.ca 1-403-209-6846

Re: Needs help w/ diagnosing and hopefully repairing of a DEC Tape Drive

2016-03-01 Thread shadoooo
Hello, I have two TSZ07 here. As they were sold as "for parts" obviously they both needed some repair. One of the two had severe mechanical problems. One motor had a loose unglued magnet inside, so there was a motor fault error, and the motor couldn't rotate freely, making a rattle noise inside

RE: Needs help w/ diagnosing and hopefully repairing of a DEC Tape Drive

2016-03-01 Thread tony duell
> In my continuing quest for a 9-track drive I got my hands on DEC TSZ07-CA w/ > a narrow SCSI interface that was supposedly "tested working". On arrival to > me I found it wrapped in a thin layer of bubble wrap w/ some broken piece of > Styrofoam thrown in for "packing". This looks very like a Ci

Re: MM11-U G235 bias/strobe jumpers

2016-03-01 Thread william degnan
On Tue, Mar 1, 2016 at 10:40 AM, Noel Chiappa wrote: > > So, the MM11-U manual (EK-MF11U-MM-003) describes (pg. 3-12) a set of > jumpers > (W5-W7) on the G235 card (X and Y selection line current generators - those > for the inhibit lines are on the G114) which adjust the bias current for > the >

MM11-U G235 bias/strobe jumpers

2016-03-01 Thread Noel Chiappa
So, the MM11-U manual (EK-MF11U-MM-003) describes (pg. 3-12) a set of jumpers (W5-W7) on the G235 card (X and Y selection line current generators - those for the inhibit lines are on the G114) which adjust the bias current for the selection line generators. It goes on to say: "Jumpers W5-W7 are

Re: cctalk Digest, Vol 20, Issue 29

2016-03-01 Thread Liam Proven
On 1 March 2016 at 14:27, Fred wrote: > The vast majority (not > all, as that would be unfair, and I have met some younger than me folks > that know their stuff) of youth today know how to USE the device, but not > necessarily how to fix it if it breaks physically or logically http://coding2lear

Re: cctalk Digest, Vol 20, Issue 29

2016-03-01 Thread Fred
On Mon, 29 Feb 2016 cctalk-requ...@classiccmp.org wrote: > From: Murray McCullough > Subject: Techno-savvy... > Message-ID: > > Content-Type: text/plain; charset=UTF-8 > > What is a techno-savvy student? Can classic computers possibly give an > answer? I used early microcomputers in my ele

Re: PDP-10 programming [was RE: Dumb Terminal games (was Re: Looking for a small fast VAX development machine)]

2016-03-01 Thread Pontus Pihlgren
On Tue, Mar 01, 2016 at 08:02:47AM -0500, John H. Reinhardt wrote: > > On 2/29/2016 8:07 PM, Rich Alderson wrote: > >From: David Griffith > >Sent: Friday, February 26, 2016 4:05 PM > > > >>One of my ongoing wish projects is to learn to program a pdp-10 so I can > >>port Frotz to it. > > > >The can