Re: Opening a MicroVAX 2000
On Mon, Feb 10, 2020 at 10:21 PM Antonio Carlini via cctalk < cctalk@classiccmp.org> wrote: > I'm trying to non-destructively open up a MicroVAX 2000. > > > I've removed the bottom "dressing" section (which holds some of the I/O > connectors) but the next step isn't obvious. None of the manuals I have > cover dismantling and the net doesn't have an IPB or similar available. > Other people have managed to get inside (I can see their results) so I > must be missing something obvious ... > There are four screws on the bottom, two on each side that hold the top cover on. Once removed the cover should theoretically slide off (looking at the front of the unit, pull it toward you), but is often very tight and will need a bit of coaxing to separate it from the rear panel. - Josh > > > Thanks. > > > Antonio > > > -- > Antonio Carlini > anto...@acarlini.com > >
Re: Making use of Panda dist TOPS20
On Tue, Feb 11, 2020 at 1:12 AM David Griffith via cctalk wrote: > I'm trying to wrap my head around getting Mark Crispin's Panda > Distribution of TOPS20 set up such that I can actually make use of a > TOPS20 environment. > > 1) How do I get networking set up, preferably such that it'll work on a > host that's given a DHCP address that could vary? I'd like to be able to > ssh to a specific port and then be connected to a terminal on the emulated > machine. I last did it back in 2003, but I remember having to plug a real DEC terminal into a serial port on my Linux box so I could run emacs so I could edit some local files. Just using the xterm window wasn't VT100/ANSI-compatible enough to run emacs without odd formatting problems. I totally do not remember exactly what I did, but it was the standard recipe for setting up TCP/IP with a static address on TOPS-20, pointing it to the IP address of a physical interface on the box (I might have had multiple interfaces to simplify things). -ethan > 2) How do I set or alter a regular user's disk quota? > > -- > David Griffith > d...@661.org > > A: Because it fouls the order in which people normally read text. > Q: Why is top-posting such a bad thing? > A: Top-posting. > Q: What is the most annoying thing in e-mail?
Opening a MicroVAX 2000
I'm trying to non-destructively open up a MicroVAX 2000. I've removed the bottom "dressing" section (which holds some of the I/O connectors) but the next step isn't obvious. None of the manuals I have cover dismantling and the net doesn't have an IPB or similar available. Other people have managed to get inside (I can see their results) so I must be missing something obvious ... Thanks. Antonio -- Antonio Carlini anto...@acarlini.com
Making use of Panda dist TOPS20
I'm trying to wrap my head around getting Mark Crispin's Panda Distribution of TOPS20 set up such that I can actually make use of a TOPS20 environment. I keep finding lots of manuals through Google searches, but I'm missing a few critical things. Things that are evading me are as follows: 1) How do I get networking set up, preferably such that it'll work on a host that's given a DHCP address that could vary? I'd like to be able to ssh to a specific port and then be connected to a terminal on the emulated machine. 2) How do I set or alter a regular user's disk quota? -- David Griffith d...@661.org A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?
Re: IBM Type 31 Alphabetical Duplicating Keypunch available, Seattle area
I forwarded your email to the 1401 Restoration Team at the Computer History Museum... Cheers, Lyle -- On Mon, 10 Feb 2020 15:34:36 -0800 Josh Dersch via cctalk wrote: > (resending as this appears to have gotten eaten last time...) > > Hi all -- > > As the subject line says I've got an IBM Type 31 Alphabetical Duplicating > Keypunch sitting in my basement, in the Seattle area. > > It's in well-loved but decent physical condition and appears to be > completely original. I have not powered it on (still has the original > selenium rectifiers in it, for one thing) but mechanically it seems fine. > No rust or obviously damaged parts, but it's clearly gotten a decent amount > of use since the 1930s. > > It's really cool but it's not really something I'm interested in keeping -- > if any of you are interested or know someone who is interested, please feel > free to make an offer. Due to the size and fragility of the item I don't > want to ship this thing. > > > Pictures are available here: > https://1drv.ms/u/s!Aqb36sqnCIfMo9BhHMhAok3F4cAInQ?e=EhXDPP > > Thanks! > Josh -- 73 NM6Y Bickley Consulting West Inc. https://bickleywest.com "Black holes are where God is dividing by zero"
Re: IBM Type 31 Alphabetical Duplicating Keypunch available, Seattle area
Wow. That is gorgeous. On Mon, Feb 10, 2020 at 7:24 PM William Donzelli via cctalk < cctalk@classiccmp.org> wrote: > How did you end up with that? > > Anyway, I forwarded your message to see if the Techworks! Binghamton > Bunch wants it. > > -- > Will > > On Mon, Feb 10, 2020 at 6:35 PM Josh Dersch via cctalk > wrote: > > > > (resending as this appears to have gotten eaten last time...) > > > > Hi all -- > > > > As the subject line says I've got an IBM Type 31 Alphabetical Duplicating > > Keypunch sitting in my basement, in the Seattle area. > > > > It's in well-loved but decent physical condition and appears to be > > completely original. I have not powered it on (still has the original > > selenium rectifiers in it, for one thing) but mechanically it seems fine. > > No rust or obviously damaged parts, but it's clearly gotten a decent > amount > > of use since the 1930s. > > > > It's really cool but it's not really something I'm interested in keeping > -- > > if any of you are interested or know someone who is interested, please > feel > > free to make an offer. Due to the size and fragility of the item I don't > > want to ship this thing. > > > > > > Pictures are available here: > > https://1drv.ms/u/s!Aqb36sqnCIfMo9BhHMhAok3F4cAInQ?e=EhXDPP > > > > Thanks! > > Josh >
Re: IBM Type 31 Alphabetical Duplicating Keypunch available, Seattle area
How did you end up with that? Anyway, I forwarded your message to see if the Techworks! Binghamton Bunch wants it. -- Will On Mon, Feb 10, 2020 at 6:35 PM Josh Dersch via cctalk wrote: > > (resending as this appears to have gotten eaten last time...) > > Hi all -- > > As the subject line says I've got an IBM Type 31 Alphabetical Duplicating > Keypunch sitting in my basement, in the Seattle area. > > It's in well-loved but decent physical condition and appears to be > completely original. I have not powered it on (still has the original > selenium rectifiers in it, for one thing) but mechanically it seems fine. > No rust or obviously damaged parts, but it's clearly gotten a decent amount > of use since the 1930s. > > It's really cool but it's not really something I'm interested in keeping -- > if any of you are interested or know someone who is interested, please feel > free to make an offer. Due to the size and fragility of the item I don't > want to ship this thing. > > > Pictures are available here: > https://1drv.ms/u/s!Aqb36sqnCIfMo9BhHMhAok3F4cAInQ?e=EhXDPP > > Thanks! > Josh
IBM Type 31 Alphabetical Duplicating Keypunch available, Seattle area
(resending as this appears to have gotten eaten last time...) Hi all -- As the subject line says I've got an IBM Type 31 Alphabetical Duplicating Keypunch sitting in my basement, in the Seattle area. It's in well-loved but decent physical condition and appears to be completely original. I have not powered it on (still has the original selenium rectifiers in it, for one thing) but mechanically it seems fine. No rust or obviously damaged parts, but it's clearly gotten a decent amount of use since the 1930s. It's really cool but it's not really something I'm interested in keeping -- if any of you are interested or know someone who is interested, please feel free to make an offer. Due to the size and fragility of the item I don't want to ship this thing. Pictures are available here: https://1drv.ms/u/s!Aqb36sqnCIfMo9BhHMhAok3F4cAInQ?e=EhXDPP Thanks! Josh
Re: test
Test failed. Please call Jim West on Support Desk ---8<---Corte aqui---8<--- http://www.tabajara-labs.blogspot.com http://www.tabalabs.com.br ---8<---Corte aqui---8<--- Em seg., 10 de fev. de 2020 às 20:08, jwest--- via cctalk < cctalk@classiccmp.org> escreveu: > test > >
Re: RD53 failure modes
On Fri, 7 Feb 2020, Carlos E Murillo-Sanchez via cctalk wrote: system originally came with an RD53 that has sat elsewhere for 25 years. It passed a read test in 2005. So I tried to see if I could read it and maybe image it now, but no go. The disk spins up, initiates a seek (the arm is not stuck in a gooey stop pad; I've read that this is a common failure mechanism for Micropolis 1325's; I opened it and saw the arm move) but then the arm returns violently (clacking) to the rest position; it does this a number of times (two to four, usually) and then it spins down. Applied voltages and currents remain ok as this happens. If nobody speaks up who actually know anything about them, . . . Q: Is the return to the reset position more violent than the usual return? If it is not different, then consider the possibility of something not related to positioner, such as: seek to track, try to READ, FAIL, reset, REPEAT. In which case, it could be anything that caused the read to fail, such as head problems, failing to find the servo data, . . .
test
test
another test
PC3XC manual?
My Pro has a PC3XC 4-line serial interface, and I know I once had a manual for it because the driver code I wrote mentions it. But I can't find it -- it may have been lost or it may have been a DEC document I did not take with me. Is there a PC3XC-BA programming manual anywhere? paul
Re: Old IBM magnetic media
I had an old IRA 7340 Hypertape cartridge. It is at the Computer Museum of America. I still have a cartridge but don't know from where. I just got some replacement strips for a 2321 Data Cell.
Looking for info - Computer Extension systems WE-VM8E8 board
I have 3 of these omnibus boards, all fully populated with 8K 12 bit words of 2102 static ram. What I don't have is the documentation that describes the way the jumpers need to be set up for each 8K field. The set up seems to involves what looks like a 3 parallel 8 pin sockets that look like one and a half 16 pin DIP socket. Any hints or pointers toward docs would be greatly appreciated THanks bob
RD53 failure modes
Hello folks; I've recently had some free time and decided to look at some hardware failures in my small collection. I fixed a couple of analog boards in the compact Mac department, and a failed scsi disk in one of them prompted me to test the small stash of such drives that I have. Turns out, about half of those marked as "working" in 2015 have failed now in many different ways. Oh well... sucks, but it was to be expected... I decided to image some of the still working ones, both in the stash and in working machines. The one in the vaxstation 2000 (a 1GB scsi with 5.5-2) turned out to have file system corruption (probably from AC power failures), which has taken a while to fix. And then, I remembered that said system originally came with an RD53 that has sat elsewhere for 25 years. It passed a read test in 2005. So I tried to see if I could read it and maybe image it now, but no go. The disk spins up, initiates a seek (the arm is not stuck in a gooey stop pad; I've read that this is a common failure mechanism for Micropolis 1325's; I opened it and saw the arm move) but then the arm returns violently (clacking) to the rest position; it does this a number of times (two to four, usually) and then it spins down. Applied voltages and currents remain ok as this happens. I've seen plenty of internet content about solving the stuck arm problem, but not this. Advice, please? Carlos.
looking for: fairchild model 8200 manual
trying to find a manual for a fairchild universal counter timer model 8200 circa 1968? got one i found like to see if i can get it working for the rack. can only find this sales catilog from 68 https://l.facebook.com/l.php?u=https%3A%2F%2Farchive.org%2Fdetails%2FTNM_Instruments_catalog_multimeters_and_various_o_20171025_0048%2Fpage%2Fn11%2Fmode%2F2up%2Fsearch%2Ffairchild%2Bmodel%2B8200%3Fq%3Dfairchild%2520model%25208200&h=AT2SbCVHC4Bf1LBj-UBDAeFgyB_79Ov-tSEHfbJYlfJ3BBA0SrVHyqlY85S9NLZq2AzAf9K0D9OweDdNRockMT0TxmKJYL5HHV8odxS6lp9Tek0jo0PhWZA7Lb6i9Oaf4-0 https://l.facebook.com/l.php?u=https%3A%2F%2Fdrive.google.com%2Fopen%3Fid%3D1IZDamqqNJP8a8ilZWALSNg_na2hZqKr3%26fbclid%3DIwAR3LJf3o-4y_xSALVXNzHBaFeBRBP_oDjr_CviGm0TZxUTR14aKtXwPH1y8&h=AT2SbCVHC4Bf1LBj-UBDAeFgyB_79Ov-tSEHfbJYlfJ3BBA0SrVHyqlY85S9NLZq2AzAf9K0D9OweDdNRockMT0TxmKJYL5HHV8odxS6lp9Tek0jo0PhWZA7Lb6i9Oaf4-0 https://l.facebook.com/l.php?u=https%3A%2F%2Fdrive.google.com%2Fopen%3Fid%3D1aAnHIUHDdc_YjqkWy5z8rc_WsUQ0p0KN%26fbclid%3DIwAR2XLjHzEujXBgJS0-iAt2yJXBbDhCv9LjVPsyJpk423nsDjLxIQL4g-Kz8&h=AT2SbCVHC4Bf1LBj-UBDAeFgyB_79Ov-tSEHfbJYlfJ3BBA0SrVHyqlY85S9NLZq2AzAf9K0D9OweDdNRockMT0TxmKJYL5HHV8odxS6lp9Tek0jo0PhWZA7Lb6i9Oaf4-0 hasnt been powered up since prolly 1986 has a tag on it about channel B not working. was found in a rack sitting out in 40below temps prolly been sitting there for 20-30yrs in a storage shed the guts are realy clean on it so proly has potential to get working again.
