Re: R: What interest in a

[jim stephens]

On 11/3/2016 9:55 AM, Ian S. King wrote:

On Thu, Nov 3, 2016 at 9:45 AM, Norman Jaffe  wrote:


Hi:




a

Hi,

very interesting machine. I've always been a fan of hp-ux...
How much would you think it's going to cost, to ship to Italy ? ( near
Milan )

Alessandro

-Messaggio originale-
Da: cctalk [mailto:cctalk-boun...@classiccmp.org] Per conto di Richard
Inviato: giovedì 3 novembre 2016 15:38
A: General Discussion: On-Topic and Off-Topic Posts
Oggetto: What interest in a

Hi to everyone,

I have a PrecisionBook laptop made by RDI Computer Corporation in
Carlsbad, CA. It's a Model #H16-12-8-256L2S with a 4050mAHr battery, a
6.5Gb hard drive with data and a 4.0Gb hard drive with HP-UX 10.2. I also
have the charger for it. It works but I have no documentation at all.

Is it of any use to anyone or should I dump it?

Richard
Bristol, UK


Well, if no one else can afford shipping :-) I'm in Seattle and would
definitely be interested.  I used HP-UX when I was training people on
Boeing's aircraft simulator software.

I am still supporting HPUX PA machines, would love to have a laptop 
sized system running HPUX.  Would be glad to deal if you like.

thanks
Jim

VAX Common Lisp

[aswood]

any idea where to get VAX Common Lisp?

Re: What the heck is the deal with this eBay item

[Antonio Carlini]

On 02/11/16 00:12, Glen Slick wrote:

On Tue, Nov 1, 2016 at 4:43 PM, Corey Cohen  wrote:

https://www.ebay.com/itm/272433760795

This Helios II has been "sold" multiple times for varying amounts and then 
suddenly hours later appears for sale again.  I'm done bidding on this each time it 
appears, because if I won, who knows what I'd receive or if the seller would cancel the 
auction.


"PAYPAL USERS MUST WAIT COMPLETE CLEARANCE
(IT CAN REQUIRES ALSO 21 DAYS)"

What they heck does that mean? Not a seller I would touch with a 10 foot pole.

Something seems odd about this seller "scroogemcduckbonaparte" and
their cousin "paperonebonaparte", who has positive feedback for
selling a "HELIOS II DISK SOL 20 8 INCHES FLOPPY WITH CONTROLLER
ALTAIR ERA IMSAI S100 BUS (#272205548861)" for $1,950.00 within the
last 6 months. "scroogemcduckbonaparte" has positive feedback as a
buyer from "paperonebonaparte" for several items over a year ago.


The listing seems to have vanished now. (Probably just as well).

Paperone is the Italian version of Disney's Scrooge McDuck.

paperonebonaparte also sold a PET for 350 euro and an Altair for $1136
and a C4004 microprocessor for 1297 euro.

He (or she) is obviously quite reasonable: the

" MITS Altair 8800a Lights Working! BILL GATES IMSAI 8080 - C4004 ERA PC 
DISK (#271980509395)"


was up for 2000 euro but a best offer was accepted :-)

Antonio

--
Antonio Carlini
arcarl...@iee.org

Re: What interest in a

[Richard Smith]

Wow! That amount of interest wasn't expected at all.

I have a best offer so far of £100 (112€ / $124) plus shipping.

The cheapest shipping to the USA would be $50, into Europe would be 18€ 
for the parcel which weighs in at 8kg / 18lb. All at your risk.


I don't want to put it on ebay, I'd much rather it went to a serious 
user on here but I do want to expand my collection of 80-BUS 
(NASCOM/GEMINI) parts so anything I get for the PrecisionBook would help.


Let me know if you are still interested.

Richard


On 03/11/2016 14:37, Richard wrote:

Hi to everyone,

I have a PrecisionBook laptop made by RDI Computer Corporation in 
Carlsbad, CA. It's a Model #H16-12-8-256L2S with a 4050mAHr battery, a 
6.5Gb hard drive with data and a 4.0Gb hard drive with HP-UX 10.2. I 
also have the charger for it. It works but I have no documentation at 
all.


Is it of any use to anyone or should I dump it?

Richard
Bristol, UK

Re: What interest in a

[Richard]

Wow! That amount of interest wasn't expected at all.

I have a best offer so far of £100 (112€ / $124) plus shipping.

The cheapest shipping to the USA would be $50, into Europe would be 18€ 
for the parcel which weighs in at 8kg / 18lb. All at your risk.


I don't want to put it on ebay, I'd much rather it went to a serious 
user on here but I do want to expand my collection of 80-BUS 
(NASCOM/GEMINI) parts so anything I get for the PrecisionBook would help.


Let me know if you are still interested.

Richard

On 03/11/2016 14:37, Richard wrote:

Hi to everyone,

I have a PrecisionBook laptop made by RDI Computer Corporation in 
Carlsbad, CA. It's a Model #H16-12-8-256L2S with a 4050mAHr battery, a 
6.5Gb hard drive with data and a 4.0Gb hard drive with HP-UX 10.2. I 
also have the charger for it. It works but I have no documentation at 
all.


Is it of any use to anyone or should I dump it?

Richard
Bristol, UK

Re: What interest in a

[Norman Jaffe]

$50 to U.S. would likely be the same for Canada, so I'm still interested... but 
let's try not to make this into a 'bidding war'. 

From: "Richard"  
To: "cctalk"  
Sent: Friday, November 4, 2016 4:26:14 AM 
Subject: Re: What interest in a 

Wow! That amount of interest wasn't expected at all. 

I have a best offer so far of £100 (112€ / $124) plus shipping. 

The cheapest shipping to the USA would be $50, into Europe would be 18€ 
for the parcel which weighs in at 8kg / 18lb. All at your risk. 

I don't want to put it on ebay, I'd much rather it went to a serious 
user on here but I do want to expand my collection of 80-BUS 
(NASCOM/GEMINI) parts so anything I get for the PrecisionBook would help. 

Let me know if you are still interested. 

Richard 

On 03/11/2016 14:37, Richard wrote: 
> Hi to everyone, 
> 
> I have a PrecisionBook laptop made by RDI Computer Corporation in 
> Carlsbad, CA. It's a Model #H16-12-8-256L2S with a 4050mAHr battery, a 
> 6.5Gb hard drive with data and a 4.0Gb hard drive with HP-UX 10.2. I 
> also have the charger for it. It works but I have no documentation at 
> all. 
> 
> Is it of any use to anyone or should I dump it? 
> 
> Richard 
> Bristol, UK 
> 
> 
> 
> 

Re: Altair, IMSAI, SWTPC, etc. for sale in Philly

[Sam O'nella]

Out of curiosity and ignorance what's with the solder joints on the cards in 
the pictures? That orange color seems like it's everywhere around cold looking 
solder joints.  Is that rust, some sort or protection, or acid corrosion?
 Original message From: Mark G Thomas  Date: 
10/31/16 
I had the pleasure of visiting Rick yesterday. Please see below 
additional information about remaining items, with links to photos.
Please contact Rick directly if interested.

Original posting here:
On Tue, Oct 18, 2016 at 08:44:39AM +, steven stengel wrote:
> ---
> *  Contact Rick below if interested.  *
> ---
> Name: Rick Bunker
> Contact: r...@bunker.us
> Location: Jenkintown, PA    
10/30/2016 Update:--

> The Altair 8800, a very early one, 4-slot motherboard, 1K ram, ceramic CPU,
> you will see: https://goo.gl/photos/3C1pzfwFoZ3koPgt9
> 

Re: Unknown DEC indicator panel

[Noel Chiappa]

> I suppose I should try and round up images of 19" x 5-1/4" PDP-10
> panels, too

So there are quite a few, although I'm not sure they are exactly the same as
the ones used in the PDP-11's, PDP-15's, etc. Those use a plastic bezel which
is the same as the blank panels in the H960 racks, into which the inlay is set
from the front, and glued down to the lip inside the bezel. The PDP-10 ones,
from the pictures, and my vague memory, use metal bezels which cover the
panels from the front, holding them on, so the shape of the inlay may be
subtly different.

Anyway, I found images (not great - all B+W illustrations in manuals) of the
following PDP-1 panels:

DF10
DA10
RC10
BA10
TD10
TM10
DS10
RM10B
DC10
RP10-C

MB10
MD10

I'll add them to the page at some point. If any has actual images of any of
these, they'd be appreciated. (And no, none of them is the mystery panel in
the RSTS manual.)

Noel

Re: Looking for Prompt-475

[dwight]

I'd have thought they had it better under control by the 432 time

but you never know.

Most times on the UPP, you could hit the reset a number of

times if there was a problem. The changes in randomness would

usually let it reset and start code that would reset.

Intel had a number of poorly designed circuits that were on the edge

of working. One of the disk controllers with the 3000 series bit slice

had a problem if the ROMs used were too fast. I forget which one.

They were using the wrong edge of the clock to latch the data.

Dwight



From: cctalk  on behalf of Eric Smith 

Sent: Thursday, November 3, 2016 5:15:56 PM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: Looking for Prompt-475

On Thu, Nov 3, 2016 at 8:42 AM, dwight  wrote:

> The UPP had a bug that was never fixed. The level for the
> [...]
> The problem was in an app note. Their solution was to put
> a few NOPs at the start of the code. It worked most of the time.
>

Wow!  I noticed the NOPs when I disassembled the code, but had no idea why
it was there.

The first >NINE< microinstructions in the iAPX 432 GDP Release 1.0
microcode ROM (in the 43201 chip) are all "reset processor", which doesn't
affect the micro program counter, but resets much of the other hardware in
both the 43201 and 43202 chips.  I wonder whether there might have been
similar issues.

Re: Altair, IMSAI, SWTPC, etc. for sale in Philly

[Paul Koning]

> On Nov 4, 2016, at 9:19 AM, Sam O'nella  wrote:
> 
> Out of curiosity and ignorance what's with the solder joints on the cards in 
> the pictures? That orange color seems like it's everywhere around cold 
> looking solder joints.  Is that rust, some sort or protection, or acid 
> corrosion?...
> 
>> The Altair 8800, a very early one, 4-slot motherboard, 1K ram, ceramic CPU,
>> you will see: https://goo.gl/photos/3C1pzfwFoZ3koPgt9

I doubt it's any of those.  That's the typical look of a board hand-soldered 
with conventional rosin core solder.  While it's possible to remove that flux 
(thought I think the best solvents are non-PC), it is often omitted and 
generally not needed.

paul

Re: What the heck is the deal with this eBay item

[Glen Slick]

> The listing seems to have vanished now. (Probably just as well).
>

Maybe the listing was reported and removed. It was listed again exactly the
same.

https://www.ebay.com/itm/272436936862

Re: What interest in a

[Richard Smith]

I'm much less interested in a bidding war that most people would be. The 
computer is sitting on my shelf, it isn't being used, it just takes up 
space. I'm not a dealer in old computers, I don't rely on any profit to 
feed my family. I would prefer that this machine went to someone who 
would use it. Shipping to Canada would be CAN$64


I would be far happier to swap it for 80-BUS parts than for cash.

Richard


On 04/11/2016 13:12, Norman Jaffe wrote:

$50 to U.S. would likely be the same for Canada, so I'm still interested... but 
let's try not to make this into a 'bidding war'.

From: "Richard" 
To: "cctalk" 
Sent: Friday, November 4, 2016 4:26:14 AM
Subject: Re: What interest in a

Wow! That amount of interest wasn't expected at all.

I have a best offer so far of £100 (112€ / $124) plus shipping.

The cheapest shipping to the USA would be $50, into Europe would be 18€
for the parcel which weighs in at 8kg / 18lb. All at your risk.

I don't want to put it on ebay, I'd much rather it went to a serious
user on here but I do want to expand my collection of 80-BUS
(NASCOM/GEMINI) parts so anything I get for the PrecisionBook would help.

Let me know if you are still interested.

Richard

On 03/11/2016 14:37, Richard wrote:

Hi to everyone,

I have a PrecisionBook laptop made by RDI Computer Corporation in
Carlsbad, CA. It's a Model #H16-12-8-256L2S with a 4050mAHr battery, a
6.5Gb hard drive with data and a 4.0Gb hard drive with HP-UX 10.2. I
also have the charger for it. It works but I have no documentation at
all.

Is it of any use to anyone or should I dump it?

Richard
Bristol, UK

Re: What interest in a

[Norman Jaffe]

I love older machines and had to part with several SGI and HP systems in order 
to 'downsize' enough to fit in my apartment, so an HP-UX laptop is very 
desirable. 
Unfortunately, I don't have access to 80-BUS parts, so my offer would be for 
cash; I'll make my offer outside this forum. 

From: "Richard Smith"  
To: "cctalk"  
Sent: Friday, November 4, 2016 7:10:22 AM 
Subject: Re: What interest in a 

I'm much less interested in a bidding war that most people would be. The 
computer is sitting on my shelf, it isn't being used, it just takes up 
space. I'm not a dealer in old computers, I don't rely on any profit to 
feed my family. I would prefer that this machine went to someone who 
would use it. Shipping to Canada would be CAN$64 

I would be far happier to swap it for 80-BUS parts than for cash. 

Richard 


On 04/11/2016 13:12, Norman Jaffe wrote: 
> $50 to U.S. would likely be the same for Canada, so I'm still interested... 
> but let's try not to make this into a 'bidding war'. 
> 
> From: "Richard"  
> To: "cctalk"  
> Sent: Friday, November 4, 2016 4:26:14 AM 
> Subject: Re: What interest in a 
> 
> Wow! That amount of interest wasn't expected at all. 
> 
> I have a best offer so far of £100 (112€ / $124) plus shipping. 
> 
> The cheapest shipping to the USA would be $50, into Europe would be 18€ 
> for the parcel which weighs in at 8kg / 18lb. All at your risk. 
> 
> I don't want to put it on ebay, I'd much rather it went to a serious 
> user on here but I do want to expand my collection of 80-BUS 
> (NASCOM/GEMINI) parts so anything I get for the PrecisionBook would help. 
> 
> Let me know if you are still interested. 
> 
> Richard 
> 
> On 03/11/2016 14:37, Richard wrote: 
>> Hi to everyone, 
>> 
>> I have a PrecisionBook laptop made by RDI Computer Corporation in 
>> Carlsbad, CA. It's a Model #H16-12-8-256L2S with a 4050mAHr battery, a 
>> 6.5Gb hard drive with data and a 4.0Gb hard drive with HP-UX 10.2. I 
>> also have the charger for it. It works but I have no documentation at 
>> all. 
>> 
>> Is it of any use to anyone or should I dump it? 
>> 
>> Richard 
>> Bristol, UK 
>> 
>> 
>> 
>> 
> 

Re: VAX Common Lisp

[Ian S. King]

On Fri, Nov 4, 2016 at 4:10 AM,  wrote:

> any idea where to get VAX Common Lisp?
>

ISTR when I installed it on the VAX-11/780-5 at Living Computer Museum, I
got it either from the hobbyist distribution or from the freeware
collection at HP.  I know I didn't jump through any special hoops to get
it.  In fact, I had both Common Lisp and 'Standard' Lisp installed.  -- Ian

-- 
Ian S. King, MSIS, MSCS, Ph.D. Candidate
The Information School 
Dissertation: "Why the Conversation Mattered: Constructing a Sociotechnical
Narrative Through a Design Lens

Archivist, Voices From the Rwanda Tribunal 
Value Sensitive Design Research Lab 

University of Washington

There is an old Vulcan saying: "Only Nixon could go to China."

Re: VAX Common Lisp

[Glen Slick]

On Fri, Nov 4, 2016 at 4:10 AM,   wrote:
> any idea where to get VAX Common Lisp?

917AA VAX LISP/VMS [LISP030] or [LISP031] was on VMS Consolidated
Software Distribution CD sets from at least Jan-1990 to May-1993
according to this link:

http://de.openvms.org/spl.php?product_name=LISP&display=full

I don't have any CONDIST sets that old myself to take a look.

Re: VAX Common Lisp

[Ian S. King]

On Fri, Nov 4, 2016 at 9:19 AM, Glen Slick  wrote:

> On Fri, Nov 4, 2016 at 4:10 AM,   wrote:
> > any idea where to get VAX Common Lisp?
>
> 917AA VAX LISP/VMS [LISP030] or [LISP031] was on VMS Consolidated
> Software Distribution CD sets from at least Jan-1990 to May-1993
> according to this link:
>
> http://de.openvms.org/spl.php?product_name=LISP&display=full
>
> I don't have any CONDIST sets that old myself to take a look.
>

I don't recall how old my CONDIST is but I'll try to give it a look-see.

-- 
Ian S. King, MSIS, MSCS, Ph.D. Candidate
The Information School 
Dissertation: "Why the Conversation Mattered: Constructing a Sociotechnical
Narrative Through a Design Lens

Archivist, Voices From the Rwanda Tribunal 
Value Sensitive Design Research Lab 

University of Washington

There is an old Vulcan saying: "Only Nixon could go to China."

Re: VAX Common Lisp

[Mark Wickens]

http://wickensonline.co.uk/static/files/vmslisp.zip

LISP031

Regards, Mark.


On 11/4/2016 4:19 PM, Glen Slick wrote:

On Fri, Nov 4, 2016 at 4:10 AM,   wrote:

any idea where to get VAX Common Lisp?

917AA VAX LISP/VMS [LISP030] or [LISP031] was on VMS Consolidated
Software Distribution CD sets from at least Jan-1990 to May-1993
according to this link:

http://de.openvms.org/spl.php?product_name=LISP&display=full

I don't have any CONDIST sets that old myself to take a look.

RE: VAX Common Lisp

[Rich Alderson]

From: Ian S. King
Sent: Friday, November 04, 2016 8:54 AM

> On Fri, Nov 4, 2016 at 4:10 AM,  wrote:

>> any idea where to get VAX Common Lisp?

> ISTR when I installed it on the VAX-11/780-5 at Living Computer Museum, I
> got it either from the hobbyist distribution or from the freeware
> collection at HP.  I know I didn't jump through any special hoops to get
> it.  In fact, I had both Common Lisp and 'Standard' Lisp installed.

Ooooh.  Standard Lisp.  Portable Standard Lisp (which is most probably what Ian
installed) was the first Lisp I learned after reading Weissman's _LISP 1.5
Primer_.  We installed it at the University of Chicago Computation Center as
part of making available the REDUCE symbolic mathematics package.  (IIRC, that
was on the Amdahl 470 under SVS, rather than on the DEC-20.)  That got me
interested in Lisp as a language, and I began hunting down all the different
implementations I could find.

The original Standard Lisp was an evalquote implementation--top-level loop is
the equivalent of

(print (apply (read) (read)))

rather than an eval implementation with a REPL

(print (eval (read)))

Portable Standard Lisp is an eval dialect, and contributed to the definition
of Common Lisp.  In addition, it provided an Algol-like alternative syntax not
unlike McCarthy's LISP 2 (the algebraic notation used in McCarthy et al. and
which McCarthy used to teach Lisp programming at Stanford until he retired).

Funniest thing is that we were having a Lisp programming discussion at the
museum just this morning, entirely unrelated to this ClassicCmp thread!

Rich


Rich Alderson
Vintage Computing Sr. Systems Engineer
Living Computers: Museum + Labs
2245 1st Avenue S
Seattle, WA 98134

mailto:ri...@livingcomputers.org

http://www.LivingComputers.org/

Re: Sage II

[emanuel stiebler]

On 2016-10-30 15:40, william degnan wrote:

On Sun, Oct 30, 2016 at 9:44 AM, emanuel stiebler  wrote:



I also got last week a IBM PC 5170, if I could get it working,
it should be able to write the SAGE II floppies, right?

if it's a 96 tpi drive and you have a newer OS like DOS 6.2 running on it.


OK, I got the IBM 5170 somehow working, got the sage II starting,
copied the system disk (SYSTEM.IMD) to the 5 1/4 disk,
and it boots !!!

Crashed after a while, and only shows 128K (512k is populated),
Monitor is Version 2.1, but it is a start !!!

Thanks to all who helped!

Epson MX-80 Technical Manual?

[Eric Smith]

Does anyone have a scan of the MX-80 Dot Matrix Printer Technical Manual?

It's apparently intended to be available here:

http://www.computinghistory.org.uk/det/39747/Epson-MX-80-Dot-Matrix-Printer-Technical-Manual/
but I was unable to actually download it.

Re: Epson MX-80 Technical Manual?

[jim stephens]

On 11/4/2016 1:29 PM, Eric Smith wrote:

Does anyone have a scan of the MX-80 Dot Matrix Printer Technical Manual?

It's apparently intended to be available here:

http://www.computinghistory.org.uk/det/39747/Epson-MX-80-Dot-Matrix-Printer-Technical-Manual/
but I was unable to actually download it.


The manual is sold for 0 pounds, and the script fails in trying to check 
out.  Since the site is in the UK the script may fail with non UK 
locales.  Perhaps someone in the UK could try to get it and let Eric 
have access.


Hope they don't have worse problems with a bug in a script like that, 
such as having ways to get into their site and compromise financial 
data.  Kind of dangerous mixing routine stuff like downloads into having 
to pay no fees for the copy.

thanks
Jim

RE: Epson MX-80 Technical Manual?

[Dave G4UGM]

It doesn't work from the UK. I can't get to the checkout if I add an item with 
a cost. I think its broken.

Dave
G4UGM

> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of jim
> stephens
> Sent: 04 November 2016 20:38
> To: General Discussion: On-Topic and Off-Topic Posts
> 
> Subject: Re: Epson MX-80 Technical Manual?
> 
> 
> 
> On 11/4/2016 1:29 PM, Eric Smith wrote:
> > Does anyone have a scan of the MX-80 Dot Matrix Printer Technical
> Manual?
> >
> > It's apparently intended to be available here:
> >
> > http://www.computinghistory.org.uk/det/39747/Epson-MX-80-Dot-
> Matrix-Pr
> > inter-Technical-Manual/ but I was unable to actually download it.
> >
> >
> The manual is sold for 0 pounds, and the script fails in trying to check out.
> Since the site is in the UK the script may fail with non UK locales.  Perhaps
> someone in the UK could try to get it and let Eric have access.
> 
> Hope they don't have worse problems with a bug in a script like that, such as
> having ways to get into their site and compromise financial data.  Kind of
> dangerous mixing routine stuff like downloads into having to pay no fees for
> the copy.
> thanks
> Jim

Re: Epson MX-80 Technical Manual?

[Fred Cisin]

On Fri, 4 Nov 2016, Eric Smith wrote:

Does anyone have a scan of the MX-80 Dot Matrix Printer Technical Manual?


It may be a long shot, . . .
The first printer that IBM sold with the 5150 was a re-badged Epson MX-80.
The ROMs are likely to be different, but the rest of its circuitry should 
be the same.


http://www.minuszerodegrees.net/manuals/IBM_5150_Technical_Reference_6025005_AUG81.pdf
?

The original manual had schematics.

Tek 4051 with a 10 year old at the helm

[Randy Dawson]

Here is my daughter Gina, I thought you guys would like, Tek is still exciting.


Sure, we have lots of PC's around the house, but this is the first one that she 
is programming, and programming the 4051 creates a smile.


Randy


https://youtu.be/o0LiYkHG3iE

Re: Tek 4051 with a 10 year old at the helm

[drlegendre .]

How completely charming. Good for Gina, and good for you!

(And I'm sure that Future Gina will 'appreciate' the fact that you put her
on the web, dressed in a bathrobe. >Smirk<)

On Fri, Nov 4, 2016 at 7:03 PM, Randy Dawson  wrote:

> Here is my daughter Gina, I thought you guys would like, Tek is still
> exciting.
>
>
> Sure, we have lots of PC's around the house, but this is the first one
> that she is programming, and programming the 4051 creates a smile.
>
>
> Randy
>
>
> https://youtu.be/o0LiYkHG3iE
>
>

Re: Tek 4051 with a 10 year old at the helm

[Brad H]

Very cool.  I love how that display works.  It's just like something from an 
early 80s movie.
I want one badly but not $3000 badly.


Sent from my Samsung device

 Original message 
From: Randy Dawson  
Date: 2016-11-04  5:03 PM  (GMT-08:00) 
To: "General Discussion: On-Topic and Off-Topic Posts"  
Subject: Tek 4051 with a 10 year old at the helm 

Here is my daughter Gina, I thought you guys would like, Tek is still exciting.


Sure, we have lots of PC's around the house, but this is the first one that she 
is programming, and programming the 4051 creates a smile.


Randy


https://youtu.be/o0LiYkHG3iE

Re: Epson MX-80 Technical Manual?

[Eric Smith]

> The first printer that IBM sold with the 5150 was a re-badged Epson MX-80.

IBM 5152 Graphics Printer. It may have been equivalent to an MX-80 with the
optional Graftrax-80 upgrade.

However, I'd still really like to get a scan of the Epson manual.

WTB several IMSAI-8080 ON-OFF-ON momentary switches

[Mark G Thomas]

Hi,

Does anyone have any available? I don't need the paddles, just the
the ON-OFF-ON momentary switches.

I got good ON-OFF address/data ones from Herb Johnson, but the momentary
ON-OFF-ON ones I have are worn out and do not return to center properly.

Mark

-- 
Mark G. Thomas (m...@misty.com), KC3DRE

Re: Tek 4051 with a 10 year old at the helm

[Lee Courtney]

Awesome. I have a 16 year-old that hasn't gotten in vintage tech that much,
but thinks it is cool! Your daughter will have a more visceral
understanding of computing if she continues. Bravo!

Lee C.

On Fri, Nov 4, 2016 at 5:03 PM, Randy Dawson  wrote:

> Here is my daughter Gina, I thought you guys would like, Tek is still
> exciting.
>
>
> Sure, we have lots of PC's around the house, but this is the first one
> that she is programming, and programming the 4051 creates a smile.
>
>
> Randy
>
>
> https://youtu.be/o0LiYkHG3iE
>
>


-- 
Lee Courtney
+1-650-704-3934 cell

Re: WTB several IMSAI-8080 ON-OFF-ON momentary switches

[Eric Smith]

On Fri, Nov 4, 2016 at 9:16 PM, Mark G Thomas  wrote:

> Does anyone have any available? I don't need the paddles, just the
> the ON-OFF-ON momentary switches.
>

Just FYI, technically those are known as MOM-OFF-MOM.

RE: Sage II

[tony duell]

> Crashed after a while, and only shows 128K (512k is populated),
> 

It appears that there's a DIP shunt block on the CPU board where each shunt 
corespond to a row of DRAMs. You should check all 4 positions are shorted.

I think that the power-on test checks the first 128K RAM, then sees if the top 
location (? first location) of the next 128K works if so, it tests that RAM, and
repeats 128K at a time to work out how much RAM it has. So you may have
defective RAMs in the second 128K. 

I wonder if the crashing is due to RAM problems in the first 128K.

-tony

Re: Tek 4051 with a 10 year old at the helm

[drlegendre .]

BTW, how old is little Ms. Gina? I'm guessing 8-10 yrs? That's a perfect
time to start venturing into programming.

I first dug into PCs (at the time, "home computers") ca. 1977-78; I would
have been 8-9 yrs. That would have been an Apple II - not a II+ or IIe /
IIc - just the old ][ as we said.

What was the stock RAM on those machines - 16/32K? All I recall is that it
had a single Disk II and one of those little B&W monitors, which I don't
think was an Apple product.

On Fri, Nov 4, 2016 at 10:44 PM, Lee Courtney  wrote:

> Awesome. I have a 16 year-old that hasn't gotten in vintage tech that much,
> but thinks it is cool! Your daughter will have a more visceral
> understanding of computing if she continues. Bravo!
>
> Lee C.
>
> On Fri, Nov 4, 2016 at 5:03 PM, Randy Dawson 
> wrote:
>
> > Here is my daughter Gina, I thought you guys would like, Tek is still
> > exciting.
> >
> >
> > Sure, we have lots of PC's around the house, but this is the first one
> > that she is programming, and programming the 4051 creates a smile.
> >
> >
> > Randy
> >
> >
> > https://youtu.be/o0LiYkHG3iE
> >
> >
>
>
> --
> Lee Courtney
> +1-650-704-3934 cell
>

Re: WTB several IMSAI-8080 ON-OFF-ON momentary switches

[drlegendre .]

Am I correct that the Altair 8800(A/B) also uses those type of switch?

If so, I need one or two as well.. my own, lone 8800 isn't quite what it
could be, IIRC. Had to sub switches.

On Fri, Nov 4, 2016 at 10:50 PM, Eric Smith  wrote:

> On Fri, Nov 4, 2016 at 9:16 PM, Mark G Thomas  wrote:
>
> > Does anyone have any available? I don't need the paddles, just the
> > the ON-OFF-ON momentary switches.
> >
>
> Just FYI, technically those are known as MOM-OFF-MOM.
>