Re: Looking for HP 9810A keyboard springs

2016-07-22 Thread Curious Marc
Springs are a notoriously annoying. In small volume they are very expensive or hard to find. In high volume you basically have them wound for you and they are very cheap per unit, if you make a ton of them. Not much in-between. In the US I have used both of the below for stock springs with good

Re: HP Computer Museum in the (local) News

2016-07-22 Thread J. David Bryan
On Friday, July 22, 2016 at 17:43, Rodney Brown wrote: > http://www.abc.net.au/news/2016-07-22/vintage-computer-museum-revives-hp21 > 16a-founder-dies/7638458 > > A keen mountaineer who died trekking in Tibet has left a rare computer > collection behind as his legacy. A touching article; thanks

RE: heap of floppy disks

2016-07-22 Thread william degnan
It would not take much time to archive these disks and post somewhere for those who have the disks that have gone bad, have docs but lost the/s disk in the set, etc. Bill Degnan twitter: billdeg vintagecomputer.net On Jul 22, 2016 11:30 PM, "Rob Jarratt" wrote: > > > -Original Message- >

RE: heap of floppy disks

2016-07-22 Thread Rob Jarratt
> -Original Message- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of devin > davison > Sent: 23 July 2016 00:11 > To: General Discussion: On-Topic and Off-Topic Posts > > Subject: heap of floppy disks > > I picked up two crates jam packed full of floppys today. Bunch o

Re: Flex Disc options for the HP 9825

2016-07-22 Thread Paul Berger
On 2016-07-22 9:17 PM, CuriousMarc wrote: Unfortunately, I have the older ROM, the HP 98217A. Says 9885 Flexible Disk Drive on it (duh). Only this 9885, single side low density 8" drive, connected with the parallel interface and a special cable is supported. And indeed as Tony says, to start fr

Re: Reproduction micros

2016-07-22 Thread Paul Koning
> On Jul 22, 2016, at 8:10 PM, Cameron Kaiser wrote: > >>> It's not. Peter is talking about a four-bit field in the >>> instructions. You're talking about a six-bit field in the program >>> counter. >> >> Something that's always bothered me about three-address architectures >> like ARM is why

RE: Flex Disc options for the HP 9825

2016-07-22 Thread CuriousMarc
Unfortunately, I have the older ROM, the HP 98217A. Says 9885 Flexible Disk Drive on it (duh). Only this 9885, single side low density 8" drive, connected with the parallel interface and a special cable is supported. And indeed as Tony says, to start from a blank disk, you need a tape cartridge tha

Re: Reproduction micros

2016-07-22 Thread Cameron Kaiser
> > It's not. Peter is talking about a four-bit field in the > > instructions. You're talking about a six-bit field in the program > > counter. > > Something that's always bothered me about three-address architectures > like ARM is why there is the insistence on that scheduling bottleneck, > the

Re: heap of floppy disks

2016-07-22 Thread Tothwolf
On Fri, 22 Jul 2016, devin davison wrote: I picked up two crates jam packed full of floppys today. Bunch of random old utilities in there, borland turbo asm, turbo pascal, windows for workgroups etc. I found a set of disks with the DEC digital logo on them. 4-5 disks, says dos for the dec pc

Re: Possibly rarest Apple 1 ever for auction

2016-07-22 Thread Corey Cohen
It was not someone at the PCB manufacturer. They would not have had access to the prom software. This was a pre-NTI board so Apple at the time was only a handful of people, the only technician was Dan Kottke and he was asked about the board already. BTW, The only known defective board is W

8i front

2016-07-22 Thread Adrian Stoness
finaly got some pregress on this 8i from a feild restoration of mine.. now to sit down and do an order for the transistors and go talk to the local ewaste recycler on monday see if they can help me source some slider switches like one i found in the junk pile at the local hacker space last night

Re: heap of floppy disks

2016-07-22 Thread geneb
On Fri, 22 Jul 2016, devin davison wrote: I picked up two crates jam packed full of floppys today. Bunch of random old utilities in there, borland turbo asm, turbo pascal, windows for workgroups etc. I would be interested in any of the Borland stuff! tnx. g. -- Proud owner of F-15C 80-0007

heap of floppy disks

2016-07-22 Thread devin davison
I picked up two crates jam packed full of floppys today. Bunch of random old utilities in there, borland turbo asm, turbo pascal, windows for workgroups etc. I found a set of disks with the DEC digital logo on them. 4-5 disks, says dos for the dec pc. Some utilitys too. Are these of any use to any

Re: Possibly rarest Apple 1 ever for auction

2016-07-22 Thread Tothwolf
On Fri, 22 Jul 2016, Corey Cohen wrote: There were no blank boards. That's the key. The sockets were wave soldered by the PCB manufacturer according to Woz. There were 2 runs of 100 boards each. This is also an early layout board (Non NTI) but with different wave soldered sockets than the tw

RE: Nova 3 front panel

2016-07-22 Thread Jay West
Jim; Thanks for the link... I went up the tree and saw the pics of that ADDS Envoy terminal. I'm exceedingly green with envy. Congrats on an awesome piece of kit! J

Re: Reproduction micros

2016-07-22 Thread Adrian Graham
On 22/07/2016 21:23, "Pete Turnbull" wrote: > On 22/07/2016 20:36, Adrian Graham wrote: >> On 22/07/2016 10:04, "Pete Turnbull" wrote: > >>> If you have those, I would strongly recommend you arrange an offsite >>> backup. Say, about 170 miles north via the A14/A1 :-) >> >> I remember why I've

Re: Nova 3 front panel

2016-07-22 Thread jim stephens
On 7/22/2016 10:39 AM, Vincent Slyngstad wrote: I'm not a big fan of the surgery involved in LED conversion, though I understand why folks do it. Particularly if they, like Emil, have used the wrong bulbs and found themselves replacing them all the time. I wouldn't do the surgery, but here's

Re: Reproduction micros

2016-07-22 Thread Pete Turnbull
On 22/07/2016 20:36, Adrian Graham wrote: On 22/07/2016 10:04, "Pete Turnbull" wrote: If you have those, I would strongly recommend you arrange an offsite backup. Say, about 170 miles north via the A14/A1 :-) I remember why I've never fired them up, this is the label on the one with the Be

Re: Reproduction micros

2016-07-22 Thread Karl-Wilhelm Wacker
If these are switching power supplies, the fizzing may be the output filter caps overheating and about to pop their safety 'corks' due to self heating due to high ripple currents. I can across this probelm in a Clary Datacomp 404 computer that I worked on in the late 60's. The initial fix was a

Re: Reproduction micros

2016-07-22 Thread Adrian Graham
On 22/07/2016 10:04, "Pete Turnbull" wrote: > On 22/07/2016 00:33, Adrian Graham wrote: >> On 22/07/2016 00:07, "Liam Proven" wrote: >> There were only a few made. They were used internally during development - hence the podule to connect it to a Beeb, which provided the I/O ear

Re: Possibly rarest Apple 1 ever for auction

2016-07-22 Thread Fred Cisin
On Fri, 22 Jul 2016, Corey Cohen wrote: There were no blank boards. That's the key. The sockets were wave soldered by the PCB manufacturer according to Woz. There were 2 runs of 100 boards each. Then, there were blank boards before the shop making the boards populated them. A bord could ha

Re: Reproduction micros

2016-07-22 Thread Chuck Guzis
On 07/21/2016 11:34 PM, Lars Brinkhoff wrote: > It's not. Peter is talking about a four-bit field in the > instructions. You're talking about a six-bit field in the program > counter. Something that's always bothered me about three-address architectures like ARM is why there is the insistence o

Re: Possibly rarest Apple 1 ever for auction

2016-07-22 Thread Noel Chiappa
> From: Corey Cohen > This board is from the 1st PCB house that made the "byte shop" boards > but has the more expensive and reliable RN sockets. Maybe someone at the 1st PCB house made an extra board for themselves, and used better sockets (since it was for themselves)? Noe

Re: Nova 3 front panel

2016-07-22 Thread Fred Cisin
On Fri, 22 Jul 2016, Vincent Slyngstad wrote: Somewhere, I have Oshino's write-up about bulb rated voltage and bulb operating voltage, but I do remember the lifespan varies as some power of the ratio, and it makes a huge difference. (There are also formulae for derating brightness, etc.) I fo

Re: Nova 3 front panel

2016-07-22 Thread Brent Hilpert
On 2016-Jul-22, at 11:00 AM, Vincent Slyngstad wrote: > From: Vincent Slyngstad: Friday, July 22, 2016 10:39 AM >> Somewhere, I have Oshino's write-up about bulb rated voltage and bulb >> operating voltage, but I do remember the lifespan varies as some power of >> the ratio, and it makes a huge d

Re: Nova 3 front panel

2016-07-22 Thread Bruce Ray
DG generally used 28V, 0.040 Ma (nominal), fragile wire-lead incandescent bulbs for the Nova/SuperNova/Nova2/Nova3 front panels as well as the early Eclipses. The S/130 was DG's first LED-based front panel and was much-appreciated by Field Service. More followup off-list... Bruce On 7/21/

Re: Nova 3 front panel

2016-07-22 Thread Brent Hilpert
On 2016-Jul-22, at 10:39 AM, Vincent Slyngstad wrote: > From: jim stephens: Friday, July 22, 2016 12:46 AM >> On 7/22/2016 12:25 AM, Vincent Slyngstad wrote: >>> I mentioned http://www.foxdata.com/blog/tag/nova-312/ to you earlier, which >>> suggested the 28V bulbs. I also found >>> http://www.ch

Re: Nova 3 front panel

2016-07-22 Thread Vincent Slyngstad
From: Vincent Slyngstad: Friday, July 22, 2016 10:39 AM Somewhere, I have Oshino's write-up about bulb rated voltage and bulb operating voltage, but I do remember the lifespan varies as some power of the ratio, and it makes a huge difference. (There are also formulae for derating brightness, e

Re: HP Computer Museum in the (local) News

2016-07-22 Thread Curious Marc
Thanks for the link. My heart is sinking every time I read about Jon’s passing. Marc From: cctalk on behalf of Rodney Brown Reply-To: "cctalk@classiccmp.org" Date: Friday, July 22, 2016 at 12:43 AM To: "cctalk@classiccmp.org" Subject: HP Computer Museum in the (local) News http://www.

Re: Nova 3 front panel

2016-07-22 Thread Vincent Slyngstad
From: jim stephens: Friday, July 22, 2016 12:46 AM On 7/22/2016 12:25 AM, Vincent Slyngstad wrote: I mentioned http://www.foxdata.com/blog/tag/nova-312/ to you earlier, which suggested the 28V bulbs. I also found http://www.chookfest.net/nova3/ledmod.html which makes it clear that the voltage

Re: How to open a SUN CDROM drive box?

2016-07-22 Thread Ethan Dicks
On Fri, Jul 22, 2016 at 1:23 PM, Mattis Lind wrote: >> There are a couple of locking tabs on the sides in the back corner. >> You poke at them through the holes in the outer shell. They look >> decorative. Two of them are not. > > That did the trick! Thanks! I think I never would have found out

Re: How to open a SUN CDROM drive box?

2016-07-22 Thread Mattis Lind
> > There are a couple of locking tabs on the sides in the back corner. > You poke at them through the holes in the outer shell. They look > decorative. Two of them are not. > > Once you depress one, lift lightly on that back corner and it should > move up 1mm-2mm. Do the other corner and the ba

Re: Possibly rarest Apple 1 ever for auction

2016-07-22 Thread Corey Cohen
There were no blank boards. That's the key. The sockets were wave soldered by the PCB manufacturer according to Woz. There were 2 runs of 100 boards each. This is also an early layout board (Non NTI) but with different wave soldered sockets than the two known production runs which both used

Looking for HP 9810A keyboard springs

2016-07-22 Thread Camiel Vanderhoeven
Hi Guys, I've got an HP 9810A that has been stored in sub-optimal conditions by a previous owner; a lot of the keyboard springs have rusted away, so I'm looking for a replacement. These are about 15.5mm outer diameter, 0.35mm thick wire, about 10mm high when uncompressed, and have only about 1.5 t

Re: How to open a SUN CDROM drive box?

2016-07-22 Thread E. Groenenberg
Mattis, Seen from the front, use a pencil or whatever fits in the holes and count 3 (or 2) holes from the back of each side and push it gently in. There is a notch on each side which locks the cover. Regards, Ed -- Ik email, dus ik besta. BTC : 1J5fajt8ptyZ2V1YURj3YJZhe5j3fJVSHN LTC : LP2WuEmYPb

Re: WANTED: PDP-8 KE8E Extended arithmetic element

2016-07-22 Thread Anders Sandahl
>You used to be able to find a set with connector blocks for $200 to $300 >range on EBay. But I haven't seen any pop up for a couple of years now. > There are actually two individual board on eBay now, but the they are a bit expensive, ~$250 each. The freight change is about $200 to Sweden for ea

Re: Reproduction micros

2016-07-22 Thread Adam Sampson
Lars Brinkhoff writes: > The link you posted above says "Sophie maintains that "inspired by" > isn't the right choice of words." [...] I'm just genuinely curious > exactly which features of the 6502 and ARM instruction sets people > think are so alike? I've always interpreted the "inspired by" d

RE: Nova 3 front panel

2016-07-22 Thread Jay West
Jim wrote... --- Jay did your DG stuff on the back dock move? just curious --- Not yet. One listmember expressed interest but nothing firm. Two racks of DGblue just waiting for someone to cart them off ;) One is an S/200 and it uses bulbs. My S/130 uses LEDS I seem to recall, but haven'

Re: How to open a SUN CDROM drive box?

2016-07-22 Thread Ethan Dicks
On Fri, Jul 22, 2016 at 10:35 AM, Mattis Lind wrote: > I am probably too stupid to not understand how to get into this box: > > http://i.imgur.com/7KXKP2l.jpg > > Before I break some parts of the old plastic I better ask... > > What is the procedure to open this up? There are a couple of locking

How to open a SUN CDROM drive box?

2016-07-22 Thread Mattis Lind
I am probably too stupid to not understand how to get into this box: http://i.imgur.com/7KXKP2l.jpg Before I break some parts of the old plastic I better ask... What is the procedure to open this up? The drive doesn't seem to work properly. Either I need to get it working somehow or replace it

Re: Possibly rarest Apple 1 ever for auction

2016-07-22 Thread Fred Cisin
"Original owner believed to be an early Apple employee ". You have the current owner who has a receipt from the previous owner who had said he got it from "maybe" an Apple employee back in 1977. On Fri, 22 Jul 2016, Corey Cohen wrote: The key to this board is the evidence it wasn't part of eith

Re: Reproduction micros

2016-07-22 Thread Liam Proven
On 22 July 2016 at 10:26, Pete Turnbull wrote: > I took that as "SA110 came in a plastic QFP, ..., with threaded shanks". > > I see that what you evidently meant was "the Alpha, which had threaded > shanks". Well, no, I meant to write exactly what I did write, drawing a comparison between the two

Re: Possibly rarest Apple 1 ever for auction

2016-07-22 Thread Corey Cohen
The key to this board is the evidence it wasn't part of either of the two known production runs. It was assembled at a different time. corey cohen uǝɥoɔ ʎǝɹoɔ > On Jul 21, 2016, at 10:54 PM, TeoZ wrote: > > "Original owner believed to be an early Apple employee ". You have the > current own

Re: Reproduction micros

2016-07-22 Thread Pete Turnbull
On 22/07/2016 00:56, Paul Koning wrote: PLCC and PQFP both are plastic packages with leads on all 4 sides. But PLCC specifically means a package with J-leads: the legs come out the package side, go straight down, and tuck under the package in a J-shaped curve. PQFP (and variations with similar a

HP Computer Museum in the (local) News

2016-07-22 Thread Rodney Brown
http://www.abc.net.au/news/2016-07-22/vintage-computer-museum-revives-hp2116a-founder-dies/7638458 A keen mountaineer who died trekking in Tibet has left a rare computer collection behind as his legacy. Surrounded by bushland in the eastern suburbs of Melbourne is a wooden shed with barn doors.

Re: Reproduction micros

2016-07-22 Thread Peter Corlett
On Thu, Jul 21, 2016 at 09:55:26PM -0600, ben wrote: [...] > A read and cuss item I see. Thank you, but it seems it is still big $$$ for > good compiler to follow the ever changing rules. Eh? The LLVM backend generates excellent code for at least x86 and ARM, and is effectively BSD-licenced.

Re: Reproduction micros

2016-07-22 Thread Pete Turnbull
On 22/07/2016 00:33, Adrian Graham wrote: On 22/07/2016 00:07, "Liam Proven" wrote: There were only a few made. They were used internally during development - hence the podule to connect it to a Beeb, which provided the I/O early on - and in the later stages before the Archimedes launch in 19

Re: Reproduction micros

2016-07-22 Thread Pete Turnbull
On 22/07/2016 00:07, Liam Proven wrote: On 21 July 2016 at 23:26, Pete Turnbull wrote: There were only a few made. They were used internally during development - hence the podule to connect it to a Beeb, which provided the I/O early on - and in the later stages before the Archimedes launch i

Re: Reproduction micros

2016-07-22 Thread Pete Turnbull
On 22/07/2016 00:07, Liam Proven wrote: On 21 July 2016 at 23:26, Pete Turnbull Hmm. Never seen one like that. None of the ones I've seen in real life are PQFPs, and none have a heatsink. Perhaps you misread my message. Ah, I misunderstood. You wrote: The SA110 came in a plastic QFP,

Re: Multiflow Trace 14/300 close to being scrapped in Texas

2016-07-22 Thread Chris Hanson
On Jul 21, 2016, at 8:09 PM, Mark Linimon wrote: > > I see that someone has picked it up via Buy It Now. No, > it wasn't me. I know the person who acquired it, who last I heard is seeking a good way to move and safely store it near its current site right now. If anyone has any suggestions, I

Re: Nova 3 front panel

2016-07-22 Thread jim stephens
On 7/22/2016 12:25 AM, Vincent Slyngstad wrote: From: jim stephens: Thursday, July 21, 2016 9:53 PM I have not had time to figure out the driver circuit for any of the lamps to see what that may turn up, and wanted to know whether it was 28v lamps before I buy 40 of them. (the thing has only

Re: Nova 3 front panel

2016-07-22 Thread Vincent Slyngstad
From: jim stephens: Thursday, July 21, 2016 9:53 PM I have not had time to figure out the driver circuit for any of the lamps to see what that may turn up, and wanted to know whether it was 28v lamps before I buy 40 of them. (the thing has only 2 out of a lot of lamps). I mentioned http://ww