Re: TRS-80 Model 12 versus 16B

2017-04-25 Thread Ed via cctalk
In a message dated 4/25/2017 10:24:42 P.M. US Mountain Standard Time, cctalk@classiccmp.org writes: On 4/25/17, 7:28 PM, "cctalk on behalf of Jim Brain via cctalk" wrote: >Been trying to Google things, but not having a

Re: TRS-80 Model 12 versus 16B

2017-04-25 Thread Geoffrey Reed via cctalk
On 4/25/17, 7:52 PM, "cctalk on behalf of Jim Brain via cctalk" wrote: >On 4/25/2017 9:47 PM, Peter Cetinski wrote: >> The 16B released around 1984 is essentially a factory upgraded Model 12 >>with the card cage and the 6Mhz

Re: TRS-80 Model 12 versus 16B

2017-04-25 Thread Geoffrey Reed via cctalk
On 4/25/17, 8:46 PM, "cctalk on behalf of Alan Hightower via cctalk" wrote: > > >Jim, I'll have a 16B at VCF-SE this weekend. You take as close a look as >you want. It has a single slim 8" drive, an internal 15MB hard disk, and

Re: TRS-80 Model 12 versus 16B

2017-04-25 Thread Geoffrey Reed via cctalk
On 4/25/17, 7:52 PM, "cctalk on behalf of Jim Brain via cctalk" wrote: >On 4/25/2017 9:47 PM, Peter Cetinski wrote: >> The 16B released around 1984 is essentially a factory upgraded Model 12 >>with the card cage and the 6Mhz

Re: TRS-80 Model 12 versus 16B

2017-04-25 Thread Geoffrey Reed via cctalk
On 4/25/17, 7:28 PM, "cctalk on behalf of Jim Brain via cctalk" wrote: >Been trying to Google things, but not having a lot of luck. I >understand both are white case, both have slimline drives, 12 had no >card cage, I think I

Re: TRS-80 Model 12 versus 16B

2017-04-25 Thread Alan Hightower via cctalk
Jim, I'll have a 16B at VCF-SE this weekend. You take as close a look as you want. It has a single slim 8" drive, an internal 15MB hard disk, and an external 5 MB hard disk. It also has the 68K card stack with 768KB RAM. I don't have a keyboard for it though. I bought a 16 keyboard thinking it

Re: TRS-80 Model 12 versus 16B

2017-04-25 Thread Peter Cetinski via cctalk
> On Apr 25, 2017, at 10:52 PM, Jim Brain wrote: > > So, the 16B has the KB conn on the machine, but the KB? > And, the 16B has the Z80 motherboard, witht eh 68K in the cage? 16B keyboard is the same as the 12. Cord is on the KB with a male connector. Female is on the

Re: TRS-80 Model 12 versus 16B

2017-04-25 Thread Jim Brain via cctalk
On 4/25/2017 9:47 PM, Peter Cetinski wrote: The 16B released around 1984 is essentially a factory upgraded Model 12 with the card cage and the 6Mhz MC68000 subsystem consisting of a CPU card and 1 or more 16 bit memory cards. The 16B for a time was the best selling Unix workstation in the

Re: TRS-80 Model 12 versus 16B

2017-04-25 Thread Peter Cetinski via cctalk
The Model 16 was introduced in 1982 and was an upgraded Model II with the addition of an MC68000 subsystem that allowed you to run 16bit OSes, like TRSDOS-16, CPM-68K and TRSXENIX 1.x. On all Tandy 68K machines and operating systems the z80 ran in concert with the 68k. The z80 handled all I/O

TRS-80 Model 12 versus 16B

2017-04-25 Thread Jim Brain via cctalk
Been trying to Google things, but not having a lot of luck. I understand both are white case, both have slimline drives, 12 had no card cage, I think I read somewhere that the 16 came with 68K std (no Z80?), and 12 had KB conn on case, 16B had KB conn on KB. Beyond that, though, would love

Attaching DEC Handles, the Right Way

2017-04-25 Thread Systems Glitch via cctalk
I'm sure most of you DEC hackers have replaced a broken DEC handle or put handles on a protoboard, and did what I've done in the past: use 4-40 screws and nuts, or pop rivets. Well, I finally came across the right tool for the job, an Indestro tubular rivet set! I cut the head off of a rivet on

RE: Ford-Higgins Powerframe QBUS Docs

2017-04-25 Thread Bill Gunshannon via cctalk
From: cctalk [cctalk-boun...@classiccmp.org] on behalf of Al Kossow via cctalk [cctalk@classiccmp.org] Sent: Tuesday, April 25, 2017 8:04 PM To: cctalk@classiccmp.org Subject: Re: Ford-Higgins Powerframe QBUS Docs nope. wonder if the 68k board was from

Re: Ford-Higgins Powerframe QBUS Docs

2017-04-25 Thread Al Kossow via cctalk
nope. wonder if the 68k board was from Integrated Solutions On 4/25/17 4:52 PM, Jason T via cctalk wrote: > On Tue, Apr 25, 2017 at 6:38 PM, Al Kossow via cctalk > wrote: >> On 4/25/17 1:46 PM, Jason T via cctalk wrote: >>> It has a combo fixed-disk/cart drive that their

Re: Ford-Higgins Powerframe QBUS Docs

2017-04-25 Thread Jason T via cctalk
On Tue, Apr 25, 2017 at 6:38 PM, Al Kossow via cctalk wrote: > On 4/25/17 1:46 PM, Jason T via cctalk wrote: >> It has a combo fixed-disk/cart drive that their docs >> call an RC40. > > Amcodyne 7110 Arapahoe Interesting! I've never heard of that manufacturer. Do you

Re: Ford-Higgins Powerframe QBUS Docs

2017-04-25 Thread Al Kossow via cctalk
On 4/25/17 1:46 PM, Jason T via cctalk wrote: > It has a combo fixed-disk/cart drive that their docs > call an RC40. Amcodyne 7110 Arapahoe competitor to the CDC 9457 Lark

SWP ATR8000 CP/M Co-processor and Percom Data AT-88 Disk Drive for Atari 8-bit

2017-04-25 Thread Sellam Ismail via cctalk
I am selling a ATR8000 and Percom Data AT-88 disk drive for Atari 8-bit systems. Please see full details here: http://www.vcfed.org/forum/showthread.php?57382-SWP-ATR8000-and-PerCom-Data-AT-88-disk-drive-for-Atari-8-bit=457522#post457522 Thanks! Sellam

Current catalog of items for sale

2017-04-25 Thread Sellam Ismail via cctalk
Here is a master list of the items I currently have listed for sale (asking price in parenthesis). Please inquire directly to me via e-mail for more information. Fulcrum IMSAI 8080 clone system ($1,200)

Re: PDP-8/a cleaning

2017-04-25 Thread Philipp Hachtmann via cctalk
Hi Pontus, I reply to the original post, but I have read many funny comments. None of them I considered harmful. My PDP-8/A is up for restoration. More specifically and 8A100 according to it's ID plate. It is in overall "ok" shape but oh so dusty. I'd like to give it a good cleaning so

Ford-Higgins Powerframe QBUS Docs

2017-04-25 Thread Jason T via cctalk
I have scanned the manuals that came with my Ford-Higgins Powerframe machine. It is a QBUS PDP-11/73 machine in what looks a whole lot like a DEC BA23 enclosure. Not sure if it's a clone or a licensed rebadge. The CPU board is DEC, the memory is a Clearpoint P/N 3325/300 (size unknown) and the

Re: PDP-8/a cleaning

2017-04-25 Thread Pete Turnbull via cctalk
On 25/04/2017 17:46, js--- via cctalk wrote: On 4/25/2017 11:34 AM, Pete Turnbull via cctalk wrote: Definitely. It takes a while, but even behind window glass (which is barely transparent to short wavelength UV) EPROMs can eventually lose their content. It happened to a friend who had a

Re: PDP-8/a cleaning

2017-04-25 Thread Systems Glitch via cctalk
> I'd just vacuum the card slots and wiring side with a shop > vac with a crevice tool. I really would not get it wet. If > you do this, vacuum all the water off and then dry in an > oven at 100F or so for a day. You can clean the card edge > fingers with an alcohol-soaked paper towel.

Re: PDP-8/a cleaning

2017-04-25 Thread Paul Koning via cctalk
> On Apr 25, 2017, at 12:46 PM, js--- via cctalk wrote: > > > > On 4/25/2017 11:34 AM, Pete Turnbull via cctalk wrote: >> On 25/04/2017 15:55, Tapley, Mark via cctalk wrote: >>> On Apr 25, 2017, at 8:51 AM, allison via cctalk >>> wrote: >>>

Re: Remex Tape Reader - Pre-power up advice?

2017-04-25 Thread Anders Nelson via cctalk
A this is perfect, thank you! I had found a manual for another model a while back and was going to ask if anyone on this list had the right one. Much appreciated. =] -- Anders Nelson +1 (517) 775-6129 www.erogear.com On Tue, Apr 25, 2017 at 9:06 AM, Al Kossow via cctalk

Re: PDP-8/a cleaning

2017-04-25 Thread js--- via cctalk
On 4/25/2017 11:34 AM, Pete Turnbull via cctalk wrote: On 25/04/2017 15:55, Tapley, Mark via cctalk wrote: On Apr 25, 2017, at 8:51 AM, allison via cctalk wrote: Even after all that I'd still dry it with a little heat (oven at 180F or a clean empty container in

Re: PDP-8/a cleaning

2017-04-25 Thread Pete Turnbull via cctalk
On 25/04/2017 15:55, Tapley, Mark via cctalk wrote: On Apr 25, 2017, at 8:51 AM, allison via cctalk wrote: Even after all that I'd still dry it with a little heat (oven at 180F or a clean empty container in the sun. Irrelevant for backplanes, but for circuit boards,

Re: Remex Tape Reader - Pre-power up advice?

2017-04-25 Thread Al Kossow via cctalk
On 4/16/17 11:28 AM, Anders Nelson via cctalk wrote: > Hi guys, > > I recently impulse-bought a paper tape reader from eBay, a Remex > RRS6500BE1/660/DRB/U901 Tucker had a copy of the RRS6500 series manual A scan is now up at

Re: PDP-8/a cleaning

2017-04-25 Thread Jon Elson via cctalk
On 04/24/2017 02:19 PM, Pontus Pihlgren via cctalk wrote: Hi My PDP-8/A is up for restoration. More specifically and 8A100 according to it's ID plate. It is in overall "ok" shape but oh so dusty. I'd like to give it a good cleaning so I'm tearing it down. And I'm looking for suggestion to

Re: PDP-8/a cleaning

2017-04-25 Thread Tapley, Mark via cctalk
On Apr 25, 2017, at 8:51 AM, allison via cctalk wrote: > Even after all that I'd still dry it with a little heat (oven at 180F or a > clean empty > container in the sun. Irrelevant for backplanes, but for circuit boards, would any UV-erasable PROMs want to be checked to

Re: PDP-8/a cleaning

2017-04-25 Thread allison via cctalk
On 4/25/17 8:57 AM, Paul Koning via cctalk wrote: On Apr 25, 2017, at 6:06 AM, Pete Turnbull via cctalk wrote: On 25/04/2017 10:08, jim stephens via cctalk wrote: On 4/25/2017 1:39 AM, Pete Turnbull via cctalk wrote: "Little residue" would be more accurate, and some

Re: PDP-8/a cleaning

2017-04-25 Thread allison via cctalk
On 4/25/17 6:06 AM, Pete Turnbull via cctech wrote: On 25/04/2017 10:08, jim stephens via cctalk wrote: On 4/25/2017 1:39 AM, Pete Turnbull via cctalk wrote: "Little residue" would be more accurate, and some of that residue will be water (look up "azeotrope") - plus you need a lot of

Re: Looking for TRS-80 Model parts (and/or someone in the Phoenix, AZ area)

2017-04-25 Thread Kelly Leavitt via cctalk
On 4/25/2017 at 3:55AM, Geoffrey Reed wrote: > In the ³spare² sectors on the xenix 3.2 media there is information on > hooking a Tandy 2000? Keyboard to a 16/6000 I forget which disk it is on > :( was told about it years ago by the xenix specialist at a RS computer > center store It's not that

Re: PDP-8/a cleaning

2017-04-25 Thread allison via cctalk
On 04/25/2017 03:45 AM, ben via cctech wrote: > On 4/24/2017 1:19 PM, Pontus Pihlgren via cctech wrote: >> Hi >> >> My PDP-8/A is up for restoration. More specifically and 8A100 according >> to it's ID plate. It is in overall "ok" shape but oh so dusty. >> >> I'd like to give it a good cleaning so

Re: PDP-8/a cleaning

2017-04-25 Thread Paul Koning via cctalk
> On Apr 25, 2017, at 6:06 AM, Pete Turnbull via cctalk > wrote: > > On 25/04/2017 10:08, jim stephens via cctalk wrote: >> >> On 4/25/2017 1:39 AM, Pete Turnbull via cctalk wrote: >>> >>> "Little residue" would be more accurate, and some of that residue >>> will be

Re: PDP-8/a cleaning

2017-04-25 Thread Pete Turnbull via cctalk
On 25/04/2017 10:08, jim stephens via cctalk wrote: On 4/25/2017 1:39 AM, Pete Turnbull via cctalk wrote: "Little residue" would be more accurate, and some of that residue will be water (look up "azeotrope") - plus you need a lot of alcohol for something the size of a PDP-8 backplane. Blow

Re: PDP-8/a cleaning

2017-04-25 Thread jim stephens via cctalk
On 4/25/2017 1:39 AM, Pete Turnbull via cctalk wrote: "Little residue" would be more accurate, and some of that residue will be water (look up "azeotrope") - plus you need a lot of alcohol for something the size of a PDP-8 backplane. Blow dry, even after an alcohol rinse. In the process

Re: PDP-8/a cleaning

2017-04-25 Thread Pete Turnbull via cctalk
On 25/04/2017 08:51, jim stephens via cctalk wrote: On 4/25/2017 12:45 AM, ben via cctech wrote: I would go for distilled water, tap water could have chlorine it it. Not enough to do any harm if you dry it sensibly; besides, it's more likely to be choramines these days, not chlorine as

Re: PDP-8/a cleaning

2017-04-25 Thread Pontus Pihlgren via cctalk
On Tue, Apr 25, 2017 at 12:51:41AM -0700, jim stephens via cctalk wrote: > > > On 4/25/2017 12:45 AM, ben via cctech wrote: > >> > >I would go for distilled water, tap water could have chlorine it it. > >Ben. I should hope not! Water comes from a well in my backyard. Perhaps I could take a

Re: PDP-8/a cleaning

2017-04-25 Thread jim stephens via cctalk
On 4/25/2017 12:45 AM, ben via cctech wrote: I would go for distilled water, tap water could have chlorine it it. Ben. Good point. Also with care, I've seen distilled water, then alcohol rinse (not rubbing, but pure of some sort), then air dry. This is used on optics to get rid of water

Re: PDP-8/a cleaning

2017-04-25 Thread ben via cctalk
On 4/24/2017 1:19 PM, Pontus Pihlgren via cctech wrote: Hi My PDP-8/A is up for restoration. More specifically and 8A100 according to it's ID plate. It is in overall "ok" shape but oh so dusty. I'd like to give it a good cleaning so I'm tearing it down. And I'm looking for suggestion to

Re: Looking for TRS-80 Model parts (and/or someone in the Phoenix, AZ area)

2017-04-25 Thread Geoffrey Reed via cctalk
On 4/24/17, 4:55 AM, "cctalk on behalf of Peter Cetinski via cctalk" wrote: > >> On Apr 24, 2017, at 7:37 AM, Peter Cetinski wrote: >> >>> >>> Just picked up a TRS-80 Model 12, and it boot to the "insert disk