Re: More circuit help required please

On Sat, Jan 7, 2017 at 11:37 PM, Adrian Graham wrote: > Evening all, > > I wish I had the ability to take a board layout and turn it into a logically > laid out schematic but as yet I don't. Video sync on my Executel 3910 is > still running me round in circles so

Re: cctalk Digest, Vol 31, Issue 7

Allison wrote; I envy the chance to restore a LGP-30 or for that fact play with one. Many of the things I remember mid sixties on are now gone or were rare then. Like small desk sized drum computers using transistors or first generation IC (RTL and RDTL). Rick Bensene wrote: I so regret

Re: Unknown keyboard

neither. GI keyboard encoder and translation prom pretty common in Keytronics kbs On 1/7/17 7:14 PM, dwight wrote: > > I'm not much help but is the uP a x51 or x48 chip? > > Dwight > > > > From: cctalk on behalf of Adam Sampson

Re: Unknown keyboard

I'm not much help but is the uP a x51 or x48 chip? Dwight From: cctalk on behalf of Adam Sampson Sent: Saturday, January 7, 2017 6:38:58 PM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re:

Re: Unknown keyboard

Kyle Owen writes: > Does anyone have an idea what this keyboard went to? The "here is" key > tells me it's likely a terminal, but the hex key pad is throwing me off. > Pictures here: http://imgur.com/a/zTgR2 I'm not sure it helps very much, but here's one in its case:

More circuit help required please

Evening all, I wish I had the ability to take a board layout and turn it into a logically laid out schematic but as yet I don't. Video sync on my Executel 3910 is still running me round in circles so could one of you fine folk take a look at this board layout drawn as best I can:

Re: Drum Computers

On 01/07/2017 11:44 AM, Paul Koning wrote: >> On Jan 6, 2017, at 9:46 PM, Rick Bensene wrote: >> >> ... >> The machine was made by Minnesota Mining and Manufacturing (aka 3M >> Corporation). Today, there seems to be no record that 3M ever was in the >> computer business.

Re: Friden Auxiliary Reader

On Jan 7, 2017, at 4:50 PM, Kyle Owen wrote: > I guess I'm on a roll, trying to find out what some things are in the > collection. Any idea what this paper tape reader could've been connected > to? > > http://imgur.com/a/DjRj7 > > Thanks, > > Kyle Kyle, That reader teams up with Friden's

Re: Friden Auxiliary Reader

programatic flexowriter seen in 74-221_Friden_Programatic_Flexowriter_Brochure.pdf and 74-204_Friden_Computyper_Brochure.pdf On 1/7/17 2:50 PM, Kyle Owen wrote: > I guess I'm on a roll, trying to find out what some things are in the > collection. Any idea what this paper tape reader could've been

RE: Friden Auxiliary Reader

I would guess a flexowriter. I havn't seen one with two readers, but when I worked for an Insurance Company ours had two punches (and one reader). They were used to print Policies and capture the policy information for the master file as these were mixed case documents and the line printers we

Friden Auxiliary Reader

I guess I'm on a roll, trying to find out what some things are in the collection. Any idea what this paper tape reader could've been connected to? http://imgur.com/a/DjRj7 Thanks, Kyle

Re: Stripping an RA80

On 1/7/17 12:22 PM, Tony Duell wrote: > Interestingly the personallity board in the R80 printset is called the RM80 > personality board. Suggesting that as I thought the RM80 is the R80 with > a Massbus interface box. > RM == "Minnow" The R80 started out life as the disk for the ill-fated

Re: Unknown keyboard

On Sat, Jan 7, 2017 at 2:16 PM, Kyle Owen wrote: > Does anyone have an idea what this keyboard went to? The "here is" key > tells me it's likely a terminal, but the hex key pad is throwing me off. > > Pictures here: http://imgur.com/a/zTgR2 > > Thanks, > > Kyle > I recall

Re: Drum Computers

> On Jan 6, 2017, at 9:46 PM, Rick Bensene wrote: > > ... > The machine was made by Minnesota Mining and Manufacturing (aka 3M > Corporation). Today, there seems to be no record that 3M ever was in the > computer business. But...it was. Not a drum computer but another

Unknown keyboard

Does anyone have an idea what this keyboard went to? The "here is" key tells me it's likely a terminal, but the hex key pad is throwing me off. Pictures here: http://imgur.com/a/zTgR2 Thanks, Kyle

Re: Yugoslavian Computer Magazine Cover Girls of the 1980s and 1990s

On Fri, Jan 06, 2017 at 06:45:56PM +0100, Liam Proven wrote: > An image gallery of cheesy -- and cheese-cakey -- magazine covers from > what were for me the golden days. > But the UK mags weren't ever like this. Most weren't. I have an issue of one of the unofficial Mega Drive magazines from the

Re: Stripping an RA80

On Sat, Jan 7, 2017 at 8:08 PM, Pontus Pihlgren wrote: > On Sat, Jan 07, 2017 at 08:00:43PM +, Tony Duell wrote: >> >> The RM80 is an R80 with a Massbus interface box in the stand. Or at >> least I think it is. I've not got any technical documentation on that unit. > > I

Re: Stripping an RA80

On Sat, Jan 07, 2017 at 08:00:43PM +, Tony Duell wrote: > > The RM80 is an R80 with a Massbus interface box in the stand. Or at > least I think it is. I've not got any technical documentation on that unit. I sounds like what I've got.. > If you have one, can you tell me what the cabling

Re: Stripping an RA80

On Sat, Jan 7, 2017 at 6:48 PM, Pontus Pihlgren wrote: > Hi > > I think you should sacrifice the RA80 for a working R80. I know there > are several RA80 in the wild but I've never heard of a R80. Well, actually I think you own an R80 but don't know it :-) As I understand

Vintage computer keyboards, computers, and other stuff

Some is not so vintage, but most of it is. https://elecshopper.com Yes, I will ship internationally, but the value on the customs forms will reflect the actual price paid, as do the invoices. Look around, maybe find something interesting. The RSS feeds are at https://elecshopper.com/RSS if you

Re: Stripping an RA80

> On Jan 7, 2017, at 1:48 PM, Pontus Pihlgren wrote: > > ...I'm curious. I have an RM80 (which I intend to use as is). But would the > RA80 personality board be possible to transplant into an RM80 to read or > write its content? I doubt it. The RM80 uses a track format

Re: Stripping an RA80

Hi I think you should sacrifice the RA80 for a working R80. I know there are several RA80 in the wild but I've never heard of a R80. On Sat, Dec 31, 2016 at 05:26:50PM +, Tony Duell wrote: > > 3) Those that are of no use in the R80, but are not too hard to store > Personality board >

Re: Spinning up RL02 w/o head load ? (was Cleaning RK05 packs)

On 07/01/2017 18:01, Pete Turnbull wrote: That part is easy. Turn it upside down, and for each of the tabs, insert a small (1/4") flat-blade screwdriver into the rectangular hole by each tab, turn it so that the side moves away from the bottom cover sufficiently, then slip a smaller screwdriver

Re: Spinning up RL02 w/o head load ? (was Cleaning RK05 packs)

On 07/01/2017 16:44, Jerry Weiss wrote: What is the best way to approach evaluating old RL02 Packs for cleaning? Does anyone have experience opening up all the little plastic tabs on the covers? I have a large stash of RL02’s that I had planned to backup. I was planning on just doing a

Re: Drum Computers (Was Cleaning things (was Cleaning RK05 packs (Was: LGP-30 Memory Drum Update)))

On 01/07/2017 07:01 AM, Al Kossow wrote: > On 1/7/17 3:06 AM, jim stephens wrote: > >> They did make a tape drive of some sort > > They made several generations, what I've found on their cartridge > tape drives is under 3M on bitsavers. All use variations of their > trade secret or what

Re: Spinning up RL02 w/o head load ? (was Cleaning RK05 packs)

On 1/7/2017 11:44 AM, Jerry Weiss wrote: What is the best way to approach evaluating old RL02 Packs for cleaning? Does anyone have experience opening up all the little plastic tabs on the covers? I have a large stash of RL02’s that I had planned to backup. I was planning on just doing a visual

Re: Spinning up RL02 w/o head load ? (was Cleaning RK05 packs)

> On Jan 7, 2017, at 3:42 AM, Pete Turnbull wrote: > > On 07/01/2017 04:08, Robert Armstrong w#rote: >>> Paul Koning wrote: >>> one would think unplugging the power to the head actuator coils ... >> >> One might think that, and that plan

Re: Homebrew Z80

You might be looking at my TVT project.. sorry.  The z80 computer is mixed in there.  Here's a direct shot of its motherboard: https://drive.google.com/file/d/0B4pq0-BHd2x6WmVQZjctMzFadlk/view?usp=drivesdk Sent from my Samsung device Original message From: Liam Proven

Re: Drum Computers (Was Cleaning things (was Cleaning RK05 packs (Was: LGP-30 Memory Drum Update)))

On 1/7/17 3:06 AM, jim stephens wrote: They did make a tape drive of some sort They made several generations, what I've found on their cartridge tape drives is under 3M on bitsavers. All use variations of their trade secret or what eventually became QIC standard tape formats. The 1/4"

Re: Yugoslavian Computer Magazine Cover Girls of the 1980s and 1990s

On 7 January 2017 at 05:01, drlegendre . wrote: > I liked the one with the guy seated at a "desk" which is apparently > outfitted with nothing more than a color dot-matrix printer and a telephone > set. Must be a serious power-user, then.. Yes, I liked that. And

Re: Homebrew Z80

On 6 January 2017 at 20:52, Brad H wrote: > > > I've put some pics of it here: > https://drive.google.com/drive/folders/0B4pq0-BHd2x6bjY3MTRZbGRCQmM?usp=shar > ing > > > > Thoughts/opinions welcome. The logo is right there on one of the boards.

Re: Drum Computers (Was Cleaning things (was Cleaning RK05 packs (Was: LGP-30 Memory Drum Update)))

On January 7, 2017 5:06:32 AM CST, jim stephens wrote: > > >On 1/6/2017 6:46 PM, Rick Bensene wrote: >> Today, there seems to be no record that 3M ever was in the computer >business. But...it was. >They inflicted the write only media on the world that became QIC. So >they

Re: Drum Computers (Was Cleaning things (was Cleaning RK05 packs (Was: LGP-30 Memory Drum Update)))

On 1/6/2017 6:46 PM, Rick Bensene wrote: Today, there seems to be no record that 3M ever was in the computer business. But...it was. They inflicted the write only media on the world that became QIC. So they were in the biz long enough to do that. Media never intended to be recorded at the

Re: Spinning up RL02 w/o head load ? (was Cleaning RK05 packs)

On 07/01/2017 04:08, Robert Armstrong w#rote: Paul Koning wrote: one would think unplugging the power to the head actuator coils ... One might think that, and that plan works for an RK05, but an RL02 is smarter. Unless the heads go on cylinder within a few seconds

RE: Morrow MD-3P Portable MicroDecision

Incredibly clean unit. Museum quality ;-) Marc -Original Message- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Al Kossow Sent: Friday, January 06, 2017 11:54 AM To: General Discussion: On-Topic and Off-Topic Posts Subject: Morrow MD-3P Portable MicroDecision