Re: For Sale: STM Pied Piper "Portable Computer"

On 22/03/2017 19:51, "cctalk" wrote: > I have for sale this fine STM Pied Piper, Z80 CP/M machine from Canada > circa 1983. Please see details here: > > http://www.vcfed.org/forum/showthread.php?56872-STM-Pied-Piper-Portable-Comput > er=453120#post453120 I have several

Re: For Sale: STM Pied Piper "Portable Computer"

On 24/03/2017 21:03, "Santo Nucifora" wrote: > What format are those disks in?  I did find the software and manuals but I > have to image my disks too.  I have not used them yet and have never powered > on my Pied Piper at this point.  I hope to image them this weekend

PSU protection with resettable polyfuse

Hi folks, The PSU for my Executel 8085 system is an Astec AC8151-01 40W 5A unit that puts out +5/+12/-12V. A while back somone suggested using an ATX PSU in its place which TBH I'd forgotten about untl I saw a breakout board that you plug a 20 or 24 pin ATX supply into and it terminates each rail

Re: PSU protection with resettable polyfuse

On 29 March 2017 at 16:24, Systems Glitch wrote: > If you hit them hard enough, they'll sometimes permanently open, which is > desirable anyway but does require rework. I don't remember how they stack > up speed-wise, I'm sure it's in the datasheets. I don't mind

8085 RESET

Hi folks, 8085-based phone system weirdness continues and I'm beginning to wonder if the PSU rails are all coming up in time for RESET to go high - given there's 4116 DRAMs in there isn't there supposed to be a proper power up order? While I look at using a 20-pin ATX PSU to run this machine

Re: 8085 RESET

On 19/03/2017 19:59, "cctalk" <cctalk@classiccmp.org> wrote: > On 2017-Mar-18, at 5:21 PM, Adrian Graham via cctalk wrote: >> >> 8085-based phone system weirdness continues and I'm beginning to wonder if >> the PSU rails are all coming up in time for RES

Re: HISTORY OF COMPUTER DESIGN: THE MOST INNOVATIVE AND UNCONVENTIONAL PCS EVER MADE

On 03/04/2017 11:19, "cctalk" wrote: > This series of articles focuses mainly on physical design, of cases > and so on, but there are some technical details in the articles too. > > Note that this is the landing page -- at the bottom of the page are > links to other

HP Portable Plus 110 available in Ireland

Hi folks, Got this email from Shane in Ireland who'd like to trade a Portable Plus for anything videogaming wise, original message below so please reply to Shane if you're interested: -- > Message from Shane Hurley (shane...@hotmail.com) on February 27th,

Re: help needed installing USB to Serial Cable for ADTPro

On 11/03/2017 21:52, "Joe Giliberti via cctalk" wrote: > The cable is branded "Ugreen." I've had difficulties with USB to RS232 > adapters in the past, which is why I bought it from the ADTPro > website. I figured that it would be more likely to work straight away. I've

Re: help needed installing USB to Serial Cable for ADTPro

On 12/03/2017 01:52, "Joe Giliberti via cctalk" wrote: > Not great news :( > The computer recognized the serial port on COM5 and ADTPro says that > it is connected. I am using the null modem cable from RetroFloppy for > the //c and the Radioshack cable with the Prolific

Re: server up

On 12/03/2017 07:10, "Jay West via cctalk" wrote: > The server seems to be alive at the new IP, mail flowing, websites up.. > > > > Still checking a few things, but appears complete. Nice one Jay! -- Adrian/Witchy Binary Dinosaurs creator/curator

Re: 10x life size sculpture of a ZX Spectrum PCB

On 09/03/2017 13:20, "Liam Proven via cctalk" wrote: > Since, to my pleased surprise, this has been a runaway hit on > Facebook, I thought I'd reshare it here. > > My friend Roger took a picture of this sculpture at the Jerwood > Gallery in Hastings on the south coast of

Re: help needed installing USB to Serial Cable for ADTPro

On 11/03/2017 05:39, "Joe Giliberti via cctalk" wrote: > Greetings! > I am trying to connect my IIc to my laptop through ADTPro and am > having trouble getting the FT232R adapter I bought from Retro Floppy. > The host computer is an HP Elitebook running Windows 7 Pro

Re: 10x life size sculpture of a ZX Spectrum PCB

On 11/03/2017 08:57, "Peter Corlett via cctalk" <cctalk@classiccmp.org> wrote: > On Fri, Mar 10, 2017 at 05:14:55PM +0000, Adrian Graham via cctalk wrote: >> On 09/03/2017 13:20, "Liam Proven via cctalk" <cctalk@classiccmp.org> wrote: > [...] >>

Re: help needed installing USB to Serial Cable for ADTPro

by: IN#2 14B On the PC go to 'bootstrapping -> ProDOS -> speediboot' and hit OK...up she comes. I've just seen a message from David Schmidt, if anyone knows why yours doesn't work he will given that he wrote ADTPro in the first place :) Cheers > On Sun, Mar 12, 2017 at 5:28 A

Re: FTGH (you come get): VAXstation 100 terminals

On 06/03/2017 16:43, "Ethan Dicks via cctalk" wrote: > On Mon, Mar 6, 2017 at 2:56 AM, Cameron Kaiser via cctalk > wrote: >> I picked these up as part of an estate liquidation, but I don't have a >> Unibus setup to run them off, and they are large

Re: Test

Test again, None of my posts seem to be getting through... On 28/02/2017 00:35, "Jay West" wrote: > Test received ;) > > -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Adrian > Graham > Sent: Monday, February 27, 2017 6:34

Re: Test

On 07/03/2017 07:12, "Tor Arntsen" <kspt@gmail.com> wrote: > On 7 March 2017 at 01:18, Adrian Graham via cctalk > <cctalk@classiccmp.org> wrote: >> Test again, None of my posts seem to be getting through... > > Saw it. And also what you sent a d

FW: More 8085a oddities

Hi folks, I didn't see the message at the bottom of this one arrive since I think I sent it JUST as the list software was being changed over. Gah, having just looked again I realise I've sent it from not the address I've subbed with. PEBCAK there :) Since then I discovered the -5V rail for the

Re: Intellivision reset switch

On 03/04/2017 22:38, "cctalk" wrote: > On Mon, Apr 3, 2017 at 10:16 AM, Richard Sheppard via cctalk < > cctalk@classiccmp.org> wrote: > >> >> May depend on the model, but mine has a spring under the plastic reset >> button in the top of the case and one of those metal

Re: eBay: RL02 packs, UK

> On 29 Jul 2017, at 21:54, Noel Chiappa via cctalk > wrote: > > Lot of 6; UK only, I think > > http://www.ebay.com/itm/253056726492 > > Noel I don’t need any more but it’s nice to see the shockwatch hasn’t gone on any of them. A — Adrian/Witchy Binary

Re: Through-hole desoldering (was Re: IBM 5110 - Where does the character set live? And other questions.)

> On 13 Jul 2017, at 22:46, Eric Smith via cctalk wrote: > > On Thu, Jul 13, 2017 at 10:42 AM, William Sudbrink via cctalk < > cctalk@classiccmp.org> wrote: > >> If you have the bucks, go for a Pace station with an SX-100 desoldering >> tool. 40 pin chips >> fall out

Re: Diskette size (was: Repurposed Art (ahem...)

> On 21 Jul 2017, at 11:46, Liam Proven via cctalk > wrote: > > I was aware of Twiggy disks, Hitachi 3" as used in Amstrad and Tatung, > and of one that I think Fred _didn't_ mention: the 2" 720 kB diskettes > used in the Zenith Minisport: > >

Re: What Is This Component?

> On 23 Jul 2017, at 23:05, Rob Jarratt via cctalk wrote > I am trying to repair my DECstation 220 after a battery leak, and making > some reasonable progress. I have reached a component that is unknown to me, > so I don't know how it is supposed to behave. It is connected

Re: Generating macintosh disks

> On 24 Jul 2017, at 07:30, Mattis Lind via cctalk > wrote: > > måndag 24 juli 2017 skrev Alexandre Souza via cctalk > : > >> Hi there! >> >> Spent all saturday and sunday trying to boot a Mac Plus. Unfortunately I >> hadn't any 800K boot disks

Re: ftp.compaq.com mirror

> On 8 Aug 2017, at 20:30, Eric Christopherson via cctalk > <cctalk@classiccmp.org> wrote: > > On Tue, Aug 8, 2017 at 2:19 PM, Adrian Graham via cctalk < > cctalk@classiccmp.org> wrote: > >> Hi folks, >> >> Managed to rescue a Com

ftp.compaq.com mirror

Hi folks, Managed to rescue a Compaq Deskpro EN from the scrap pile at work today and realised it has a proper floppy controller so I can install a 5.25” drive. Trouble is ftp.compaq.com has disappeared so getting drivers for win98 is going to be difficult unless I

Re: This Is Such An Exciting Listing!

> On 19 Aug 2017, at 00:13, Rob Jarratt via cctalk > wrote: > > http://www.ebay.co.uk/itm/182707649701 > > > It doesn’t beat a listing from 15 or so years ago from a mate of mine who advertised a polo mint (lifesavers to our US types) in a clear case as ‘mint in

Re: A little power circuit explanation please

> On 23 Aug 2017, at 00:45, Don North via cctalk <cctalk@classiccmp.org> wrote: > > On 8/22/2017 4:30 PM, Adrian Graham via cctalk wrote: >> Hi folks, >> >> Failing Atari PSU aside I remembered a question I had ages ago but never >> posted about the

Re: Atari PSU with collapsing 5V rail

> On 20 Aug 2017, at 16:32, Mattis Lind <mattisl...@gmail.com> wrote: > > > > söndag 20 augusti 2017 skrev Adrian Graham via cctalk <cctalk@classiccmp.org > <mailto:cctalk@classiccmp.org>>: > Hi folks, > > I think I’ve mentioned this PSU before b

Re: Atari PSU with collapsing 5V rail

> On 20 Aug 2017, at 23:20, Chuck Guzis via cctalk > wrote: > > On 08/20/2017 12:12 PM, Brent Hilpert via cctalk wrote: > >> If the transformer were faulty and heating up internally, it would seem >> unlikely that it would cool off that quickly to recover, IME it takes

Re: Atari PSU with collapsing 5V rail

>> >> Any clues appreciated. It’d be nice to feed the 6VAC input from another >> source but I’m not sure my VARIAC will go that low. > > > The gain pin is presenting the output of the error amplifier, an increase > there is what you would expect as the output V falls, as the difference >

A little power circuit explanation please

Hi folks, Failing Atari PSU aside I remembered a question I had ages ago but never posted about the power circuit of another 80s home micro, the Enterprise 64. This machine is powered by a 2A 9V unregulated PSU and internally there’s a pair of 7805s and a 78L12 to smooth things out. There’s

Re: Wanted: small composite CRT monitor

> > In short, I'm looking for a small NTSC CRT monitor or portable TV in > the 7-12" range. I'm not stuck on aesthetics, but it would be nice to > have something that would sit nicely atop the IIc. I wouldn't mind an > actual Apple monitor, but I don't want to pay APPLE MAC IPHONE STEVE > JOBS

Re: A little power circuit explanation please

; > On 8/22/2017 4:30 PM, Adrian Graham via cctalk wrote: >> Hi folks, >> Failing Atari PSU aside I remembered a question I had ages ago but never >> posted about the power circuit of another 80s home micro, the Enterprise 64. >> This machine is powered by a 2A 9

More Executel phone system news

Hi folks, Some of you may remember me burning the midnight oil over an 8085-based phone system designed by STC in the UK, the Executel 3910. Good news to report! Completely by chance one of the programme managers for STC at the time found all my postings and pictures in a last ditch attempt

Re: I hadn't made the connection before

On 2 June 2017 at 17:13, Cameron Kaiser via cctalk wrote: > The (ridiculous) story of the Keyboard Component was legendary. The ECS > keyboard variant can barely be considered functional even by the standards > of the time, though I guess it at least looks decent compared

Re: More Executel phone system news

> On 9 Jun 2017, at 15:14, Noel Chiappa via cctalk > wrote: > >> From: Adrian Graham > >> Completely by chance one of the programme managers for STC at the time >> found all my postings ... in a last ditch attempt to give his stash of >> goodies away before he put them

Re: FTGH Large amount of DEC/Misc Classic computer hardware

> On 7 May 2017, at 07:18, Rob Jarratt via cctalk wrote: > > A pity this is the wrong the side of the pond and shipping is so expensive, > otherwise I would love to get a 5000/240 or 5000/260 and some 5" drives. > > Regards > > Rob > Hi Rob, I’ve been told about

Re: FTGH Large amount of DEC/Misc Classic computer hardware

> On 7 May 2017, at 18:21, Rob Jarratt wrote: > >> I’ve been told about reship.com who I guess are like a US equivalent of >> parcel2go over here. You pay domestic US shipping to them and they add a >> surcharge to forward it over to you, presumably by boat. What I

Re: Did DEC make a Daisy Wheel printer?

> On 8 Oct 2017, at 18:19, Zane Healy via cctalk wrote: > > Did DEC make any sort of impact printer, besides dot-matrix printers? I have > an LA50 or two, and dot-matrix isn’t what I’m after. My brain is telling me LQP02 so yes, a daisywheel. I’ve not seen one for 30

Re: VCF Midwest: 6502 Badges!

> On 8 Sep 2017, at 21:11, Jim Brain via cctalk wrote: > > As the proud owner (and builder) of said badge, I recorded my build, in case > anyone cares. Only 1 mistake :-) > > It's a long build, done late at night (so liesurely pace), and I deviated a > bit from the

Re: Strange grounding problem

Computing History from 1972 onwards > On 28 Sep 2017, at 03:08, Jerry Weiss <j...@ieee.org> wrote: > >> On Sep 27, 2017, at 8:14 PM, Charles Dickman via cctalk >> <cctalk@classiccmp.org> wrote: >> >> On Wed, Sep 27, 2017 at 8:23 PM, Adrian Graham v

Re: cctalk Digest, Vol 39, Issue 2

Hi Andrea, I assume that's a message for me about my strange grounding issue? I'd already replaced the caps in that startup circuit, it's one of the first things you do when troubleshooting a non-booting Newbrain. In this case it seemed to be some electrolytic spill from the original leaky caps

Strange grounding problem

Hi folks, This is another Grundy Newbrain problem on a different machine that is probably easily explained by someone who understands current flow. This machine has two startup circuits that are simply a resistor and 10uF capacitor each, both feeding a Hex Schmitt Trigger (CD401068CM). When

Looking for anyone who may have Commodore 65 info

Hi folks, I realise this is a question that's only applicable to a small number of people but I'm looking for anyone who may have info or better still PAL dumps of a Rev3 C65. Back when I got the machine in 2001 there was a couple of people active in this field, namely Riccardo Rubini and Moise

Re: Z80 micro screen colour inversion

r that is pin 14 (A0). However, the clock for IC427 is missing and THAT comes from pin 12 of IC430 (LS138) whic is marked TVTL. I didn't get any further than that. Cheers! On 25 September 2017 at 09:48, Brent Hilpert via cctalk < cctalk@classiccmp.org> wrote: > On 2017-Sep-25, at 12:4

Z80 micro screen colour inversion

Hi folks, I’ve been troubleshooting another one of “uncle” Clive Sinclair’s offspring (though most folk don’t know his involvement), the Grundy Newbrain. It’s a typical early 80s micro with Z80 and 32K RAM made up of 16x 4116 DRAM. What’s uncommon with this particular one is that it

Re: Strange grounding problem

..@classiccmp.org>> on behalf of Adrian Graham via cctalk > <cctalk@classiccmp.org <mailto:cctalk@classiccmp.org>> > Sent: Wednesday, September 27, 2017 5:23:45 PM > To: General Discussion: On-Topic and Off-Topic Posts > Subject: Strange grounding problem > > Hi

Re: Atari PSU with collapsing 5V rail

> On 20 Aug 2017, at 23:20, Chuck Guzis via cctalk > wrote: > > On 08/20/2017 12:12 PM, Brent Hilpert via cctalk wrote: > >> If the transformer were faulty and heating up internally, it would seem >> unlikely that it would cool off that quickly to recover, IME it takes

Re: Atari PSU with collapsing 5V rail

> On 20 Aug 2017, at 23:20, Chuck Guzis via cctalk > wrote: > > On 08/20/2017 12:12 PM, Brent Hilpert via cctalk wrote: > >> If the transformer were faulty and heating up internally, it would seem >> unlikely that it would cool off that quickly to recover, IME it takes

Re: C64 to VGA

> On 28 Aug 2017, at 02:30, Kevin Parker via cctalk > wrote: > > HI guys - not really a C64 person (I've been given a couple over the years > and kept them rather than see them go to landfill). > > Trying to fix one up for a very good friend for a house warming present

Re: A little power circuit explanation please

voltage on C10 again. > Dwight That’s brilliant, thanks Dwight! — Adrian/Witchy Binary Dinosaurs - Celebrating Computing History from 1972 onwards > > From: cctalk <cctalk-boun...@classiccmp.org > <mailto:cctalk-boun...@classiccmp.org>> on behalf of Adrian Graham via cctalk >

Atari PSU with collapsing 5V rail

Hi folks, I think I’ve mentioned this PSU before but the question I have might be applicable to other cheap switchers. This lump for the original Atari 520ST is run by an NE5561N control chip with a D45H1 switching transistor. It’s supplied by a multi-tap transformer giving 2x2 feeds of 6VAC

Re: Update: Rehoming Apple ][+ , BBC B+?? & A410/1 with math co-processor - Liverpool UK

> On 2 Sep 2017, at 20:21, Dave Wade via cctalk wrote: > > Folks > I got this today via my Vintage Computing Meetup groups. If there is any > interest please contact Nick direct > Dave Typically I was supposed to be near Liverpool tonight but the customer cancelled the

Re: Does anyone recognise this please

> On 3 Sep 2017, at 08:02, drlegendre . via cctalk > wrote: > > Err.. I've seen it, I know it.. trying to place it. > > Commodore VIC-20? That was my first thought too. I only have UK ones so don’t have the channel selector switch but the casing is the same. A (sent

Re: Does anyone recognise this please

> On 3 Sep 2017, at 08:02, drlegendre . via cctalk > wrote: > > Err.. I've seen it, I know it.. trying to place it. > > Commodore VIC-20? That was my first thought too. I only have UK ones so don’t have the channel selector switch but the casing is the same. A > On

Re: Did DEC make a Daisy Wheel printer?

> On 8 Oct 2017, at 19:00, Jon Elson via cctalk wrote: > > On 10/08/2017 12:31 PM, Chuck Guzis via cctalk wrote: >> On 10/08/2017 10:19 AM, Zane Healy via cctalk wrote: >>> Did DEC make any sort of impact printer, besides dot-matrix printers? I >>> have an LA50 or two,

Re: TRS80 Model 4P CRT contrast fail

> On 24 Nov 2017, at 08:41, Brent Hilpert via cctalk <cctalk@classiccmp.org> > wrote: > > On 2017-Nov-23, at 5:07 PM, Adrian Graham via cctalk wrote: >>> On 23 Nov 2017, at 21:18, Brent Hilpert via cctalk <cctalk@classiccmp.org> >>> wrote: >&g

Re: TRS80 Model 4P CRT contrast fail

Evening! > OK... Firstly, measure the voltage on pin 8 of the monitor PCB. Can you get > it to swing from 0 to around 12V? Yes, it tops out at 11.82V. > Scope the video output from the CPU board (on pin 2 of the monitor PCB). Is > it a good TTL level signal? Yes. Given that it’s TTL and a

Re: TRS80 Model 4P CRT contrast fail

> On 24 Nov 2017, at 08:44, Adrian Graham via cctalk <cctalk@classiccmp.org> > wrote: > > >> On 24 Nov 2017, at 08:41, Brent Hilpert via cctalk <cctalk@classiccmp.org> >> wrote: >> >> On 2017-Nov-23, at 5:07 PM, Adrian Graham via cctalk wrote:

Re: TRS80 Model 4P CRT contrast fail

> On 23 Nov 2017, at 21:18, Brent Hilpert via cctalk <cctalk@classiccmp.org> > wrote: > > On 2017-Nov-23, at 11:34 AM, Adrian Graham via cctalk wrote: >> Hi folks, >> >> A random facebook post made me dig out my model 4P which has never worked as >> l

Re: TRS80 Model 4P CRT contrast fail

> On 23 Nov 2017, at 20:43, Chuck Guzis via cctalk <cctalk@classiccmp.org> > wrote: > > On 11/23/2017 11:34 AM, Adrian Graham via cctalk wrote: > >> None of the pots on the video board deal with contrast so I’ve got it out on >> the bench to remove and tes

Re: TRS80 Model 4P CRT contrast fail

> On 26 Nov 2017, at 06:15, Tony Duell <ard.p850...@gmail.com> wrote: > > On Sat, Nov 25, 2017 at 11:02 PM, Adrian Graham via cctalk > <cctalk@classiccmp.org> wrote: >> Evening! >> >>> OK... Firstly, measure the voltage on pin 8 of the monitor PCB.

Re: TRS80 Model 4P CRT contrast fail

> On 26 Nov 2017, at 19:31, Brent Hilpert via cctalk > wrote: > > > With a scope the objective would be to look at the levels when pixels are > 'on' in the video signal. > For white/on pixels, you need conductivity through TR102.E-C and TR103.E-C, > to allow electrons

TRS80 Model 4P CRT contrast fail

Hi folks, A random facebook post made me dig out my model 4P which has never worked as long as I’ve owned it, it’s always just sat on a shelf looking cute. Good old ASTEC PSU problem so I fixed that, reseated all the thankfully socketed chips and it burst into life. Sort of. I know it’s

Re: TRS80 Model 4P CRT contrast fail

> On 24 Nov 2017, at 17:23, Tony Duell via cctalk <cctalk@classiccmp.org> wrote: > > On Fri, Nov 24, 2017 at 8:41 AM, Brent Hilpert via cctalk > <cctalk@classiccmp.org> wrote: >> On 2017-Nov-23, at 5:07 PM, Adrian Graham via cctalk wrote: >>>> On 23 No

Re: TRS80 Model 4P CRT contrast fail

> On 26 Nov 2017, at 21:06, Adrian Graham wrote: > > I replied to this thread a while back but managed to only reply to Tony and > not the list, oops! Rather than using my multi-transistor tester for TR103 I > tested it with a DMM in diode mode and it’s almost a dead

DECwriter II available for pickup in Gosport, Hants, UK

Hi folks, As the subject says. It's been stored in a garage for many years but is in pretty good condition. Free for pickup. Cheers, -- adrian/witchy Owner of Binary Dinosaurs, the UK's biggest home computer collection? www.binarydinosaurs.co.uk

Re: H7861 PSU issues

>I was also quite surprised that such a simple component would die, >and what I find more confusing is that it died while I was using >the machine. A 555 can also take a Commodore PET down because it's solely in charge of the RESET circuit, and no RESET == no PET. On 2 November 2017 at 14:22,

Re: looking at buying a pocket PC / PDA

> On 3 Nov 2017, at 23:21, Liam Proven via cctalk wrote: > > On 3 November 2017 at 22:53, Fred Cisin via cctalk > wrote: > >> Exactly! >> >> But, they sometimes try to convince us that it means "Personal Computer >> Memory Card Instustry

Canon BN22 Laptop manual, anyone?

Hi folks, I’ve been contacted by someone looking for the user guide for this particular beast, an early 90s mono laptop with built-in printer. The usual searches turn up nothing other than pictures and she says she’s found a PDF but in German. Any clues? — Adrian/Witchy Binary Dinosaurs -

Re: Picked up beige Mac G3

> On 11 Dec 2017, at 23:18, devin davison via cctalk > wrote: > > Someone just dropped off a mac g3 at the scrapyard I work at and I picked it > up. > It has a failing hard drive. Replaced the drive, downloaded and burned > a disk with mac os 8 on it, but it refuses to

TRS80 Model 1 video RAM (2102A)

Hi folks, After sorting out the Model 4P (thanks to all who provided hints!) and scrubbing it up so it almost looks new again I turned attention to my Model 1 Level II which had been dead for at least the same amount of time as the Model 4. There’s some excellent troubleshooting tips for these

Re: HEXTIr - TI HexBus SD Drive

> On 29 Oct 2017, at 17:14, Jim Brain via cctalk wrote: > > In case anyone has a fondness for niche tech... > > At VCF-SE this year, the TI folks had a great exhibit, and perusing it I saw > an unfamiliar machine, the TI CC-40 (Compact Computer-40). While I was >

Re: I ran across this strange modernistic? Data General ...odd? computer?

I used to be site engineer at A Well Known British Newspaper printers, they have those little DGs controlling part of the press process. This was back in 2004, I was down there again last year to fix some old HP servers and those little DGs are still going strong. -- adrian/witchy Owner of

Re: I ran across this strange modernistic? Data General ...odd? computer?

day, May 22, 2018 Adrian Graham via cctalk <cctalk@classiccmp.org> > wrote: > I used to be site engineer at A Well Known British Newspaper printers, they > have those little DGs controlling part of the press process. This was back > in 2004, I was down there again last year to fix

Weird Lear-Siegler ADM-3A board

Hi folks, A friend of mine has said ADM-3A and is baffled by the tiny board it contains, not the usual ‘covering entire base’ discrete logic board they normally have. Centre of this board is the Nat Semi NS405 ‘display processor on a chip’ which is obviously why the board is so small but

Re: Weird Lear-Siegler ADM-3A board

> On 25 May 2018, at 22:04, Adam Sampson via cctalk <cctalk@classiccmp.org> > wrote: > > Adrian Graham via cctalk <cctalk@classiccmp.org> writes: > >> A friend of mine has said ADM-3A and is baffled by the tiny board it >> contains, not the usual ‘cov

Re: DEC VT 420 comm cable?

> On 18 Jun 2018, at 21:46, systems_glitch via cctalk > wrote: > > I've got 1000 feet of DEC OfficeConnect flat cable, a bunch of MMJ ends, > and the crimp dies for them, if anyone finds themselves in need of cable. > > Thanks, > Jonathan > Ditto, but I’m in the UK. -- adrian/witchy

Re: Weird Lear-Siegler ADM-3A board

> On 29 May 2018, at 08:10, Eric Smith wrote: > > On Fri, May 25, 2018 at 3:30 PM, Adrian Graham via cctalk > mailto:cctalk@classiccmp.org>> wrote: > Wow, good spot! This one isn’t badged but we just assumed it had fallen off. > Just as I’m typing this he’s messaged

Strange Teledisk question

Hi folks, For the last few weeks I’ve been helping the owner of a PPG2.2 synthesizer get the ‘computer’ side of it, a Waveterm A, running. The Waveterm is a 6809-based single board computer running FLEX that was designed to use 8” drives, then at some point they modified it slightly to use

Re: Strange Teledisk question

> Find a copy of Anadisk and see what it reports regarding sector > ordering. Also, you might try "sector" mode with the "Diagnostic Read" > function, though that requires a bit of knowledge. I did have a look at that, now that the show we were getting ready for is finished I can spend a bit

Re: Strange Teledisk question

> On 24 Jun 2018, at 03:03, Fred Cisin via cctalk wrote: > > What kind of drives does the Waveterm use? I mentioned that in the original message, YE-Data YD380 HD with Shugart interface > What kind of disk controller? WD FDC1793. The main board is an Eltec Eurocom II V7. > For example: >

Re: Rick Dickinson, ZX Spectrum designer, RIP

> On 26 Apr 2018, at 13:47, Liam Proven via cctalk > wrote: > > I think if you ask virtually any British person in their late 30s, 40s or > 50s, in anything connected with IT, what their first computer was, the > answer would be a ZX 81 or a ZX Spectrum. It was the

Re: Rick Dickinson, ZX Spectrum designer, RIP

> On 26 Apr 2018, at 22:13, Eric Smith via cctalk wrote: > > On Thu, Apr 26, 2018 at 3:11 PM, Fred Cisin via cctalk < > cctalk@classiccmp.org> wrote: > >> On Thu, 26 Apr 2018, Eric Smith via cctalk wrote: >> >>> Those Microdrives were such a Cheese design. >>> >> >>

Re: ZX Spectrum Z80 Keeps Resetting

> On 31 Dec 2017, at 20:09, Rob Jarratt via cctalk > wrote: > > For some time now I have had a couple of ZX Spectrum machines. Neither > works, each has a different problem. Today I got one of them out for another > look. The problem with it is that it seems to

Re: New TestFDC Results Registry

> On 18 Jan 2018, at 15:46, systems_glitch via cctalk > wrote: > > I'd been trying to reach Dave Dunfield with new TestFDC results since > apparently August with no results. So, I wrote a new TestFDC registry into > my site: > >

Re: TESTFDC

> On 27 Jan 2018, at 21:55, Mike Loewen via cctalk <cctalk@classiccmp.org> > wrote: > > On Sat, 27 Jan 2018, Adrian Graham via cctalk wrote: > >> I?d like to thank whoever it was who added the Abit K8V Pro/Winbond W83627HF >> with its test results to the TESTF

Re: TESTFDC

floppy controller is still supported, and if it isn’t how far back to I need to go! Much writing and pictures (no swearing) at http://binarydinosaurs.co.uk/Museum/rml/380z.php Cheers A > Regards > > Rob > >> -Original Message- >> From: cctalk [mailto:cctalk-boun

TESTFDC

I’d like to thank whoever it was who added the Abit K8V Pro/Winbond W83627HF with its test results to the TESTFDC page for writing SSSD disks. I’ve been trying to get a similar setup going for a fortnight now and last week found this motherboard on e*ay for Not Many UK Pounds. Coupled with a

Re: DEC H7260 PSU fault

> On 27 Jan 2018, at 17:04, Jules Richardson via cctalk > wrote: > > On 01/26/2018 07:15 PM, Jules Richardson via cctalk wrote: >> After that... well, I need to work out how to get the entire supply >> assembly to start up while it's open, so that I can work on it

Re: TESTFDC

(2nd go, fat fingers posted from the wrong account, apologies if it double posts) > On 27 Jan 2018, at 21:55, Mike Loewen via cctalk <cctalk@classiccmp.org> > wrote: > > On Sat, 27 Jan 2018, Adrian Graham via cctalk wrote: > >> I?d like to thank whoever it was

Re: TESTFDC

> On 27 Jan 2018, at 22:58, Mike Loewen via cctalk <cctalk@classiccmp.org> > wrote: > > On Sat, 27 Jan 2018, Adrian Graham via cctalk wrote: > >>>> Now where did I put that 8? drive... >>> >>> I'm using a Tandon 848 on mine. >> &g

Re: TESTFDC

*sigh* Fat fingers again. > On 27 Jan 2018, at 22:58, Mike Loewen via cctalk <cctalk@classiccmp.org> > wrote: > > On Sat, 27 Jan 2018, Adrian Graham via cctalk wrote: > >>>> Now where did I put that 8? drive... >>> >>> I'm using a Tand

Re: Can you run Apple Lisa Workshop and LIsa OS on the same Hard-drive?

> On 28 Jan 2018, at 11:09, corey cohen via cctalk > wrote: > > Or do I need an external profile for my 2/10 if I want to still use LOS. > > Thanks, > Corey > > corey cohen > uǝɥoɔ ʎǝɹoɔ It’s been a while since I did this but going from memory you’ll need an

Re: Can you run Apple Lisa Workshop and LIsa OS on the same Hard-drive?

> On 28 Jan 2018, at 16:00, Jos Dreesen via cctalk <cctalk@classiccmp.org> > wrote: > > On 28.01.2018 16:25, Adrian Graham via cctalk wrote: >>> On 28 Jan 2018, at 11:09, corey cohen via cctalk <cctalk@classiccmp.org> >>> wrote: >>> >>

Re: Can you run Apple Lisa Workshop and LIsa OS on the same Hard-drive?

> On 28 Jan 2018, at 16:11, Ray Arachelian via cctalk > wrote: > > On 01/28/18 06:09, corey cohen via cctalk wrote: >> Or do I need an external profile for my 2/10 if I want to still use LOS. >> > > Sure, it's possible for LOS to coexist with LPW on the same hard

Re: VMS 8.4 Alpha Hobbyist disk images

> An update to this. > > I picked up the Alphaserver today, powered up fine. I reset the system > password so I could log in. > > It is running OpenVMS 7.1 and has 7 disks in the Storageworks box. > > When I log in only the boot disk shows up from the $ show dev command. > Nothing else, no

Re: DEC Storageworks

> On 4 Feb 2018, at 21:42, Douglas Taylor via cctech > wrote: > > The alphaserver 1000a I have has a storageworks array. > > The disk carriers are green in color, I see storageworks disks for sale on > ebay that are blue. What is the difference? Are they

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