Re: Is this a new record?

[Ian Finder via cctalk]

Hi,

I'm the guy who got the PERQ 1 keyboard from Chris for a $100 donation.

Since I got @'ed here, I felt the need to state:

1) The PERQ 1 KB is foam and foil, and isn't a space cadet full of wild
keys, so I don't think the keyboard collectors are after them for BIG
MONEY.
(Which is great, I wish they all were undesirable.) It's rather nasty
vacuum form and I'd be surprised to find out the keyboarders want 'em.

2) I've re-foiled it

3) To defend my honor I feel the need to clarify that I've attached it to a
*REAL PERQ 1* which is otherwise complete. No USB, raspberry PIs, etc.

4) I can provide any reference info on it to folks who need.

Thx,

~ I

On Fri, Apr 23, 2021 at 6:04 AM Chris Zach via cctalk 
wrote:

> Oh weird. Who did I send that keyboard to then. Oh, Ian. I did send it
> to him with the request he dump the ROMs and such so other people can
> build replicas, I'd say reach out to him.
>
> Josh: Do you need a Perq1 or Perq2 keyboard. I have a pair of P2
> keybards but then again I also have a pair of Perq2's in addition to one
> Perq1 and a second Perq1 shell with just the disk drive.
>
> It's finally (a) warming up and (b) people getting vaccinated so maybe I
> can get some help this summer removing more of that stuff. The Microvax
> 3400 is not going to go up the steps easily...
>
> C
>
> On 4/23/2021 12:22 AM, jim stephens via cctalk wrote:
> >
> >
> > On 4/22/2021 7:30 PM, Al Kossow via cctalk wrote:
> >> On 4/22/21 5:08 PM, Chris Zach via cctalk wrote:
> >>> Jesus, I just traded a Perq1 keyboard to a guy for a $100 donation to
> >>> a food bank of his choice.
> >>
> >> josh dersch is looking for a keyboard and a monitor
> >>
> > He already chimed in.  His search also triggered as soon as it was
> > posted.  Up to 4900 in first hour.  Ridiculous.
> >
> > One has to wonder for these two (another keyboard maybe a month ago)
> > where the machines are these are "liberated" from, or if the actual
> > owners are missing them.
> >
> > thanks
> > Jim
>

PSA to SparcBook 2 Users

[Ian Finder via cctalk]

There is a 1000uf 10v cap on the main logic board just above the Bt display 
controller. 

It is leaking... a lot. (4/4 samples so far)

Go replace it, flush the area and scrub the with 99.9% IPA.

Seeking "MEGATEK" Sun 3/4 era (?) VME Graphics accelerator information and driver

[Ian Finder via cctalk]

I picked up a pair (1 set) of these very neat old graphics boards.

Alas I have no idea what they are or if there is hope of using them. One is
a dual
slot 9U VME board that has gobs of video ram all over it, including a board
labeled Z buffer.

The only output are (3) BNC connectors
(R,G, and B) and a 50 pin connector marked P4.

The other is a single slot 9UVME board with (8) 30 pin SIMM slots with 1mb
SIMM in them, a couple of Weitek chips, another 50 pin connector labeled
P4, jumpered with a baby backplane to the other board, and 6 led on the
front.

Anyone know what these are and where to get drivers? They appear to be Sun
3 era, and the boards are labeled “Sun OHC” with a megatek sticker.

They do not appear to work out-of-box in my 3/260 as console devices- the
Kernel does not identify them correctly.

Thanks.

Re: Alto II keyset connector plug identification

[Ian Finder via cctalk]

It's actually an ITT CANON ***2DE19P***, not a DE19 as Marc indicates.

On Wed, Aug 19, 2020 at 1:48 AM Curious Marc via cctalk <
cctalk@classiccmp.org> wrote:

> We had the same problem. It’s a DE-19 connector, fits in the same envelope
> has a DB-9, but 3 rows instead of 2. You can see in this video right around
> here: https://youtu.be/GMp5EAq-Elo?t=541  . ITT-canon used to make these.
> You can look them up on eBay, which is where we found ours. Make sure you
> don’t get a two row DB-19, which is a completely different animal.
> Marc
>
> > On Aug 18, 2020, at 8:15 PM, Steve Malikoff via cctalk <
> cctalk@classiccmp.org> wrote:
> >
> > Would anyone be able to identify the 19 pin connector used on the Alto
> II keyset?
> > Shown in the second photo on
> https://www.computerhistory.org/collections/catalog/X124.82C
> >
> > The Xerox engineering doc (209962B_Alto_II_Assembly_Keyset.pdf) has it
> as P/N DE51218-1 if I interpret it correctly.
> >
> > I've looked for a while and the closest I can find appears to be Mouser
> p/n 2DEF19P
> > The cost of 136 USD (each!) is more than I (and perhaps everyone else)
> would really like to pay, and that's only for
> > the male end.
> >
> > Ideally I would like a datasheet on this original connector if possible,
> to know the pin-pin spacing and the pressed metal
> > surround dimensions.
> >
> > I've just ordered small trial quantities of screws, microswitches,
> e-clips, nutserts, rods and so on for my keyset
> > lookalikes/workalikes. Also about to start the key mapping to F5-F9
> using a popular small SOC board, which is small enough
> > to be inside a custom printed shell that the keyset plugs into.
> > That is, the 3-row 19-pin female connector side which goes through to
> USB.
> >
> > I was thinking there's no reason it shouldn't be able to work using the
> original connector with a real keyset-less Alto,
> > should any such animal be lurking out there. Hence looking at the
> feasibility of placing in a 19 pin male-female
> > connector arrangement rather than the fallback of straight-through to
> USB.
> >
> > The whole thing is still at prototype stage so even if it doesn't work
> out, well I will at least have a bunch of additions
> > to my nuts/bolts/fasteners/switches stash.
> >
> > Thanks for any help,
> >
> > Steve.
> >
>

Re: Getting files off a 7300--Mission accomplished

[Ian Finder via cctalk]

I may be able to track down floppies for 7300 TCP, if we can confirm it is
extinct in the wild...

On Mon, Jul 20, 2020 at 1:31 AM Al Kossow via cctalk 
wrote:

> On 7/19/20 12:42 PM, Chris Zach via cctalk wrote:
>
> > Now I have a big crate with "Convergent technologies" sitting in my
> truck, I'll have to figure that one out next. Also more Perq manuals and
> > floppy disks.
>
> Probably a miniframe or mightyframe, considering the 7300 is a Convergent
> machine under the ATT badge.
>
> Could you tell if TCP/IP is installed, since it has the rare Ethernet card
> in it.
>
> I don't know if 7300 TCP software is archived anywhere.
>
>
>
>
>

Re: Getting files off a 7300

[Ian Finder via cctalk]

David Gesswein's excellent MFM emulator will capture a full-fidelity image
of the disk- both flux and bits- if you want the ultimate possible archival
integrity:
https://www.pdp8.net/mfm/mfm.shtml

Every vintage computing household needs at least one.

On Mon, Jul 13, 2020 at 11:39 PM Grant Taylor via cctalk <
cctalk@classiccmp.org> wrote:

> On 7/13/20 9:12 PM, Phil Budne via cctalk wrote:
> > UUCP?
>
> I'm glad that someone else said UUCP.  I was thinking UUCP.
>
>
>
> --
> Grant. . . .
> unix || die
>

Re: In search of 4B3A Microswitch Keyswitches (for a restoration, not a keyboard collector!)

[Ian Finder via cctalk]

Mistake below, Vo should be a fraction of 5 volts, not "a volt" when
operating

On Fri, Jul 10, 2020 at 2:28 PM Ian Finder  wrote:

> A few responses-
>
> On Fri, Jul 10, 2020 at 12:29 PM Brent Hilpert  wrote:
>
>> Reading that datasheet, it appears that to reduce power consumption those
>> sensors employ pulsed sleep/wake operation, presenting up to a 1/8 second
>> delay in response time. Probably not very good for use in a keyboard, and
>> something to watch out for if looking for a modern replacement sensor.
>>
>
> Great catch, Brent. I'll keep looking at other options. I must have
> skimmed the data sheet a bit too hard.
>
> On Fri, Jul 10, 2020 at 01:19 PM Santo Nucifora wrote:
> > I can't help as I have a full keyboard that I'd like to keep intact but
> this is a home made...
>
> I have many of the keyboards with these 3-pin switches. As mentioned
> previously, what the sensors need to be electrically is the ***A sensor,
> which is harder to find by a considerable margin. Sink level, vs sink
> pulse, vs scan. In Al's words-  non-multiplexed contact closure type.
>
> http://telcontar.net/KBK/Micro_Switch/SD
>
> The machine is a Xerox system.
>
> On Fri, Jul 10, 2020 at 02:01 PM Al Kossow wrote:
> > It would be interesting to understand the failure mode.
> > I wonder if they passivated the die correctly
>
> I agree. What is interesting to me is this- If I look at other hall effect
> keyboards, and even other examples of the same sensor:
> http://telcontar.net/KBK/Micro_Switch/images/SD/Micro_Switch_SD_Hall_sensors.jpg
>
> They appear to be encased in a hard, black epoxy of some kind. Some of the
> other keyboards I have with the same SD switches- but alas the wrong sensor
> output type- appear to exhibit this as well, and have not failed.
>
> My failed sensors have something with the gelatinous consistency and
> transparency of RTV silicone. It did not appear to have become conductive,
> but who knows. There were three distinct failure modes:
>
> * 1) Output stuck at Vcc (+5v) - By the spec sheet, this should never
> happen. Vo should be a fraction of a volt when not actuated, dropping to 0v
> when actuated.
>
> * 2) Output stuck at 0v - Self explanatory.
>
> * 3) Output appears to be correct-ish Vo, but does not actuate to 0v with
> magnet. This was the rarest failure.
>
> Based on this, my best guess is that there are two failure modes:
>
> 1) RTV silicone decomposes over time, leaching something into the die that
> destroys the IC's passivization layer per Al's comment
>
> 2) The RTV silicone (or similar) is not robust enough to shield the
> delicate sensor die to ceramic substrate connections from vibration and
> force-based trauma as it decomposes.
>
> My expectation is that most of these switches have the black epoxy style
> of package for a reason- this is the correct design, hopefully should last
> a long time, and the ones that use this transparent goop will all
> inevitably die.
>
> I have never seen any other semiconductor die encased in what appears to
> be silicone...
>
> This is, incidentally, more about keyboards than I have ever cared to
> know. The fact that this is an entire hobby for some people is all the more
> shocking to me. I'd far rather be debugging some logic...
>
>
> Cheers- I
>
>
>
>
>
>

Re: In search of 4B3A Microswitch Keyswitches (for a restoration, not a keyboard collector!)

[Ian Finder via cctalk]

A few responses-

On Fri, Jul 10, 2020 at 12:29 PM Brent Hilpert  wrote:

> Reading that datasheet, it appears that to reduce power consumption those
> sensors employ pulsed sleep/wake operation, presenting up to a 1/8 second
> delay in response time. Probably not very good for use in a keyboard, and
> something to watch out for if looking for a modern replacement sensor.
>

Great catch, Brent. I'll keep looking at other options. I must have skimmed
the data sheet a bit too hard.

On Fri, Jul 10, 2020 at 01:19 PM Santo Nucifora wrote:
> I can't help as I have a full keyboard that I'd like to keep intact but
this is a home made...

I have many of the keyboards with these 3-pin switches. As mentioned
previously, what the sensors need to be electrically is the ***A sensor,
which is harder to find by a considerable margin. Sink level, vs sink
pulse, vs scan. In Al's words-  non-multiplexed contact closure type.

http://telcontar.net/KBK/Micro_Switch/SD

The machine is a Xerox system.

On Fri, Jul 10, 2020 at 02:01 PM Al Kossow wrote:
> It would be interesting to understand the failure mode.
> I wonder if they passivated the die correctly

I agree. What is interesting to me is this- If I look at other hall effect
keyboards, and even other examples of the same sensor:
http://telcontar.net/KBK/Micro_Switch/images/SD/Micro_Switch_SD_Hall_sensors.jpg

They appear to be encased in a hard, black epoxy of some kind. Some of the
other keyboards I have with the same SD switches- but alas the wrong sensor
output type- appear to exhibit this as well, and have not failed.

My failed sensors have something with the gelatinous consistency and
transparency of RTV silicone. It did not appear to have become conductive,
but who knows. There were three distinct failure modes:

* 1) Output stuck at Vcc (+5v) - By the spec sheet, this should never
happen. Vo should be a fraction of a volt when not actuated, dropping to 0v
when actuated.

* 2) Output stuck at 0v - Self explanatory.

* 3) Output appears to be correct-ish Vo, but does not actuate to 0v with
magnet. This was the rarest failure.

Based on this, my best guess is that there are two failure modes:

1) RTV silicone decomposes over time, leaching something into the die that
destroys the IC's passivization layer per Al's comment

2) The RTV silicone (or similar) is not robust enough to shield the
delicate sensor die to ceramic substrate connections from vibration and
force-based trauma as it decomposes.

My expectation is that most of these switches have the black epoxy style of
package for a reason- this is the correct design, hopefully should last a
long time, and the ones that use this transparent goop will all inevitably
die.

I have never seen any other semiconductor die encased in what appears to be
silicone...

This is, incidentally, more about keyboards than I have ever cared to know.
The fact that this is an entire hobby for some people is all the more
shocking to me. I'd far rather be debugging some logic...


Cheers- I

Re: In search of 4B3A Microswitch Keyswitches (for a restoration, not a keyboard collector!)

[Ian Finder via cctalk]

Yeah Al, that's a great suggestion. I was looking at the AH1815 last night.
The challenge is getting the whole assembly as thin as the original, which
presents a not insignificant challenge-

Even using the SOT553 package of this:
https://cdn.sparkfun.com/assets/4/4/8/2/a/AH1815.pdf - I'd have to do some
trickery, like have it mount into a hole into the center of the board.



On Fri, Jul 10, 2020 at 11:06 AM Al Kossow via cctalk 
wrote:

> On 7/10/20 9:45 AM, Al Kossow via cctalk wrote:
>
> > 4B3A is a non-multiplexed contact closure type which is extremely
> difficult to find.
>
> Since it isn't very fancy, I wonder if you could make a new board with a
> modern Hall
> effect sensor? You just need a contact closure.
>
>

Re: In search of 4B3A Microswitch Keyswitches (for a restoration, not a keyboard collector!)

[Ian Finder via cctalk]

Thanks Cindy-

Unfortunately those won't work :(

On Fri, Jul 10, 2020 at 10:42 AM Electronics Plus 
wrote:

> I have a number of keyboards with Micro Switch ST switches, but no SD.
> Does anyone still use old Memorex or Telex keyboards?
>
> -Original Message-
> From: cctech [mailto:cctech-boun...@classiccmp.org] On Behalf Of Ian
> Finder via cctech
> Sent: Thursday, July 09, 2020 11:34 PM
> To: classic...@classiccmp.org
> Subject: In search of 4B3A Microswitch Keyswitches (for a restoration, not
> a keyboard collector!)
>
> I know what you guys are thinking- no, this isn't for a keyboard collection
> or some modern build or some other nonsense like that.
>
> I have a friend who is restoring a fairly interesting and historically
> significant vintage computer- a and subject to what appears to be a
> batch-related encapsulation failure on the proprietry hall effect sensors,
> but could have been some other trauma, around a little over half of them
> are bad.
>
> The correct SD-series replacement switch would be the 4B3A-
>
> *** These can allegedly be found on some of the Diablo printing
> terminals.**
>
> It is possible other switches ending in ***A could be made to work with a
> bit of labor and disassembly (swapping the fairly brittle sensors).
>
> I am not a keyboard expert but I have learned that you can remove a key on
> some of these microswitch keyboards and read the model fairly easily.
>
> Please let me know if you have a lead on a donor for these switches. They
> will be put to good use, and you can reply to me off list for more details.
>
> Thanks,
>
> - I
>
>
> --
> This email has been checked for viruses by Avast antivirus software.
> https://www.avast.com/antivirus
>
>

In search of 4B3A Microswitch Keyswitches (for a restoration, not a keyboard collector!)

[Ian Finder via cctalk]

I know what you guys are thinking- no, this isn't for a keyboard collection
or some modern build or some other nonsense like that.

I have a friend who is restoring a fairly interesting and historically
significant vintage computer- a and subject to what appears to be a
batch-related encapsulation failure on the proprietry hall effect sensors,
but could have been some other trauma, around a little over half of them
are bad.

The correct SD-series replacement switch would be the 4B3A-

*** These can allegedly be found on some of the Diablo printing terminals.**

It is possible other switches ending in ***A could be made to work with a
bit of labor and disassembly (swapping the fairly brittle sensors).

I am not a keyboard expert but I have learned that you can remove a key on
some of these microswitch keyboards and read the model fairly easily.

Please let me know if you have a lead on a donor for these switches. They
will be put to good use, and you can reply to me off list for more details.

Thanks,

- I

In search of 4B3A Microswitch Keyswitches (for a system restoration, not keyboarding)

[Ian Finder via cctalk]

I know what you guys are thinking- no, this isn't for a keyboard collection
or some modern build or some other nonsense like that.

I have a friend who is restoring a fairly interesting and historically
significant vintage computer-
The correct SD-series replacement switch would be the 4B3A-

*** These can allegedly be found on some of the Diablo printing
terminals.***

Subject to what /appears/ to be a batch-related encapsulation failure in
the glue on the proprietary hall effect sensors, around a little over half
of the switches on the current keyboard are bad.

It is possible other switches ending in ***A could be made to work with a
bit of labor and disassembly (swapping the fairly brittle sensors).

I am not a keyboard expert but I have learned that you can remove a key on
some of these microswitch keyboards and read the model fairly easily on
each switch.

Please let me know if you have a lead on a donor for these switches. They
will be put to good use, and you can reply to me off-list for more details.

Thanks.

Re: Anyone know what an AM000076 (Dip 18) is?

[Ian Finder via cctalk]

Thanks Bob- this is alongside the 27S29 parts- which are labeled as such,
but this question is about a part labeled AM76 (different than the
27S29 which are clearly labeled).
Are you saying they're identical?

On Mon, Jun 1, 2020 at 11:34 AM Bob Smith  wrote:

> 27S29
>
> Abstract: AM27S28 Am27S28/27S29
> Text: Am27S28/ 27S29 4,096-Bit (5 1 2 x 8 ) Bipolar PROM Am27S28/
> 27S29 DISTINCTIVE CHARACTERISTICS · · · High Speed Highly reliable,
> ultra-fast programming Platinum-Silicide fuses High programming yield
> · · · Low-current PNP inputs High-current open-collector and
> three-state outputs Fast chip select GENERAL DESCRIPTION The
> Am27S28/29 (512-words by 8-bits) is a Schottky TTL Programmable
> Read-Only Memory (PROM). This device is available in both open
> collector (Am27S28) and three-state (Am27S29) output
>
> On Sun, May 31, 2020 at 7:35 PM Ian Finder via cctalk
>  wrote:
> >
> > Title says all,
> >
> > Backing up all the programmable parts in the Apollo DN100 and the CPU
> board
> > has a few of these ceramic DIPs with the same Apollo P/N labels as the
> > Am27S29 and similar programmable parts.
> >
> >
> > Thanks
>

Anyone know what an AM000076 (Dip 18) is?

[Ian Finder via cctalk]

Title says all,

Backing up all the programmable parts in the Apollo DN100 and the CPU board
has a few of these ceramic DIPs with the same Apollo P/N labels as the
Am27S29 and similar programmable parts.


Thanks

In search of Apollo DN100 Technical Reference Manual

[Ian Finder via cctalk]

Hi folks,

I've recently acquired an Apollo DN100 I'd like to restore to former glory.

Sadly, there are no schematics anywhere that I can find.
I have seen this alluded to, but do not have a part number- anyone got a
lead?

Even better would be to find anything describing the PALs in the system.

Separately, there is a 14" Priam DISKOS hard drive in here- not with the
Priam interface used by the later SAU2 Apollos (DN300, etc.) but something
else- perhaps the early ANSI interface option provided by Priam.

If anyone has leads on -
1) The failure modes of these drives and
2) A replacement

… advice would be much appreciated.

Thanks,

- Ian

In search of Apollo DN100 Technical Reference Manual

[Ian Finder via cctalk]

Hi folks,

I've recently acquired an Apollo DN100 I'd like to restore to former glory.

Sadly, there are no schematics anywhere that I can find.
I have seen this alluded to, but do not have a part number- anyone got a
lead?

Even better would be to find anything describing the PALs in the system.

Separately, there is a 14" Priam DISKOS hard drive in here- not with the
Priam interface used by the later SAU2 Apollos (DN300, etc.) but something
else- perhaps the early ANSI interface option provided by Priam.

If anyone has leads on -
1) The failure modes of these drives and
2) A replacement

… advice would be much appreciated.

Thanks,

- Ian

In search of SGI IRIS 1400 / 2000 era technical reference manuals & schematics

[Ian Finder via cctalk]

Title says all.

Thanks,

- Ian

Re: Fwd: Crypto AG

[Ian Finder via cctalk]

ok boomer

On Tue, Feb 18, 2020 at 1:20 PM Jim Manley via cctalk 
wrote:

> On Tue, Feb 18, 2020 at 4:08 PM Toby Thain via cctalk <
> cctalk@classiccmp.org>
> wrote:
>
> Is this blather on topic?
> >
> > If so I need to be on a different list.
> >
>
> Go ahead, if you think you can enjoy ignoring the reality that exists
> outside an imaginary bubble.  Computing was, and is, used for all sorts of
> useful purposes, including protecting people from their own negligence.  We
> crossed the Rubicon in the late 1980s when it comes to preventing world
> hunger, because without computing and high-speed telecommunications,
> production and distribution of food world-wide for a population closing in
> on eight billion people would be impossible.  Likewise for pretty much any
> economic undertaking in any sector, anywhere, these days.  Look what's
> happening to the supply chains coming out of China now that 1.3 billion
> people are increasingly being quarantined in response to a virus with a
> speck of RNA that kills.
>
> Those who fail to learn the lessons of history are doomed to repeat them,
> even if subsequent stanzas may only rhyme.  That includes computing
> history, as it's been entwined in making all of our existences possible.
>

Re: Grid 1537 ”Tempest” schematics

[Ian Finder via cctalk]

I was under the impression that the internal hard drive on the 1537 is SCSI
and not IDE.
Careful, some of those pins have +12 power for the drive on them as well.


On Wed, Aug 14, 2019 at 8:49 PM Curt Vendel via cctalk <
cctalk@classiccmp.org> wrote:

> Hi,
>
>   I’m doing some work for a friend who has one of these unicorns it’s
> apparently a super beefed up CIA use the laptop that wound up in Russia
> somehow and he got it shipped back here to the US
>
> The motherboard was modified it looks like the hard drive was on some kind
> of a tray going to a connector which is IDE compatible
>
> Someone had extremely poorly soldered on an IDE cable in place of the sled
> and over the years several of the pans of popped off and they’re not really
> making sense as to the solder points they’re supposed to go to.
> Complicating the matter is the paint outs are not just a direct staggered
> 40 Pin to Pin connection several of the through holes are not in use so
> just soldering on I had her and plug in the cable into it is not possible
> also the pens are staggered so that wouldn’t make it possible either.
>
> So to cut to the chase does anyone have the schematics or the motherboard
> pinouts for this connector so that I can do a proper soldering job and put
> on a clean working cable so that this laptop can vote from the IDE hard
> drive?
>
>

Re: VCF West?

[Ian Finder via cctalk]

The only mention I've heard of the event is that the main attraction is 10
of the exact same boring, single-board, extremely simple, but incredibly
expensive computer. Perhaps an overrated collectible, rather than an
interesting technological showcase- my interests focus more toward the
latter.

That said, in spite of the main 'attraction,' I'm excited to see many of
you and will be there this weekend.

I hope the turnout is better than we expect...

On Wed, Jul 31, 2019 at 11:02 AM Al Kossow via cctalk 
wrote:

>
>
> On 7/30/19 11:43 PM, Fred Cisin via cctalk wrote:
> > Is there a reason why there has been no mention of VCF West?
> > Isn't it scheduled for this coming weekend?
>
> I has been embarassingly underpromoted.
> They couldn't even get the promo right on the http://www.vcfed.org banner
> for months
> and I see it's already been dropped there to promote VCF MW
>
>
>
>

In search of microchannel P390 card...

[Ian Finder via cctalk]

If you have a lead on one, please ping me off-list.
I have a very specific project I'm trying to accomplish.

thanks

Re: Looking for Tektronix 4051 or 4052 Display Board

[Ian Finder via cctalk]

These systems are rare enough that it's probably worth fixing instead of
treating the board as a simple FRU. There are schematics on bitsavers for
that board, and they are complete.

On Tue, Jul 3, 2018 at 1:21 PM, Monty McGraw via cctalk <
cctalk@classiccmp.org> wrote:

> I've been repairing my Tektronix 4052.
>
> I've got the digital logic working - but the text and graphics are messed
> up.
>
> I posted photos of the screens in my Tektronix 4052 troubleshooting thread
> on vcfed.
>
> With a scope on the final X amplifier stage - it is oscillating - so I see
> weird horizontal strokes instead of dots for text.  I know from the service
> manual that this circuit includes a feedback loop, and with the scope I see
> oscillation all around the loop - so I haven't found the source.
>
> Does anyone have a spare Tektronix 4052 (or 4051) Display Board that I
> could buy?
>
> Thanks,
> Monty
>



-- 
   Ian Finder
   (206) 395-MIPS
   ian.fin...@gmail.com

Re: old vintage stuff for pretty cheap

[Ian Finder via cctalk]

How did you find this? Sadly I don't think it's legit. These are just
scraped from eBay!

On Thu, May 3, 2018 at 10:48 AM, Electronics Plus via cctalk <
cctalk@classiccmp.org> wrote:

> https://www.acrosups.top/vintage-computing-c-29/
>
> Don't pay attention to where it says Old Price.
>
> Click on the item and see the discounted price.
>
> Free shipping over $15.
>
>
>
> Not affiliated with seller, etc.
>
>
>
> Cindy Croxton
>
> Electronics Plus
>
> 1613 Water Street
>
> Kerrville, TX 78028
>
> 830-370-3239 cell
>
> sa...@elecplus.com
>
> AOL IM elcpls
>
>
>
>
>
> ---
> This email has been checked for viruses by Avast antivirus software.
> https://www.avast.com/antivirus
>



-- 
   Ian Finder
   (206) 395-MIPS
   ian.fin...@gmail.com

Re: radar history

[Ian Finder via cctalk]

All I have to say in response to this message is...
http://i0.kym-cdn.com/entries/icons/original/000/022/978/yNlQWRM.jpg

OS for a Paragon XP/E

[Ian Finder via cctalk]

Does anyone have leads on an operating system for such a beast?

TIA,

- Ian

Re: Maxtor full-height 5.25" drives of death

[Ian Finder via cctalk]

> Drives of the day were power hungry and ran hot.  Heat is a killer.

Yes, certainly heat is why these drives go onto a shelf working and come
off of it broken with servo and head amplifier problems at an astonishing
rate far higher than their contemporary brethren.
It also helps answer my question of common failure modes- surely, it must
be the refrigeration on the drives that fails while it is on the shelf.
Perhaps the freon slowly leaks.

Thank you for this insightful response.

Maxtor full-height 5.25" drives of death

[Ian Finder via cctalk]

XT2190s, XT1140s, some of the early ESDI disks...
I have 6 XT2190s at home, and maybe one of the damn things works.

Does anyone out here know, beyond speculation, what some of the common
failure modes of these drives are? I'm not opposed to open-HDA surgery.

And I probably won't do anything.
But the question of WHY this line of drives in particular sucks so much has
haunted me for some time...

- Ian

Honorable mention: CDC Sabre, Wren.

-- 
   Ian Finder
   (206) 395-MIPS
   ian.fin...@gmail.com

Re: Password reset for ~1998 AIX on RS/6000?

[Ian Finder via cctalk]

I had this experience with a Tadpole N40, running AIX 3.

I simply DD'ed the drive, took the image...
$ strings aix-machine.img | grep root:
...to get the password line.

Dump that into a passwd file and run john (the password cracker utility) on
it for a couple days.

I don't think Linux can mount the early AIX filesystems directly.

On Thu, Feb 1, 2018 at 8:24 PM, r.stricklin via cctalk <
cctalk@classiccmp.org> wrote:

>
> On Feb 1, 2018, at 7:28 PM, Tapley, Mark via cctech wrote:
>
> >> Image the hard drive off to a raw file using a linux host with a SCSI
> HBA?
> >>
> >> Once that is done, it might be possible to run a hex editor against the
> hard drive (one that doesn't copy the contents into RAM) and then search
> for the password file. From there you can copy the des hash and use rainbow
> tables / wordfiles to crack it or replace it with a known DES hash?
>
> You don't need to do any of these things.
>
> > Update, I did locate a CD saying “AIX V4.2.1 for 5765-C34” and this URL:
>
> All you need is this disk. You can boot it, and use it to start a
> maintenance shell, from which you can mount the root filesystem and edit
> the password file(s) directly. The procedure you found will get you there,
> easily.
>
> ok
> bear.
>
>
> --
> until further notice
>
>


-- 
   Ian Finder
   (206) 395-MIPS
   ian.fin...@gmail.com

Re: Sneak peak: this year's VCF PNW/East/West shirt design

[Ian Finder via cctalk]

Thanks, Evan. With that bit of background, I personally enjoy the design
quite a bit more- and the 'quirkiness' makes a lot more sense.

On Wed, Jan 31, 2018 at 1:03 PM, Evan Koblentz via cctalk <
cctalk@classiccmp.org> wrote:

> I think it would be helpful if Evan and co. chimed in with the context of
>>> the shirt and why it exists- maybe a bit more about who the guy on it is.
>>>
>>
> Fair enough.
>
> It's a caricature of Dan Roganti aka Ragooman on this list, VC Forum,
> various Apple and S-100 forums, etc.
>
> Dan drew most of the early VCF East shirts in a certain style. Everyone
> liked those. Now he's going through a tough time (not my place to elaborate
> here), so we decided to make a shirt in his honor, using the same style.
>
> My favorite parts are the cat and the robot.
>



-- 
   Ian Finder
   (206) 395-MIPS
   ian.fin...@gmail.com

Re: Sneak peak: this year's VCF PNW/East/West shirt design

[Ian Finder via cctalk]

I've been told the fellow in the picture is someone active from the
community who I had never heard of or recognized, but who has fallen ill.-
which is very sad.
And the shirt was made to recognize him.

My criticism of the shirt was, admittedly, originally based on the
"stereotypical computer collector" on front.

While I'm not a big fan of the design in general, it's a nice gesture and I
think it would be helpful if Evan and co. chimed in with the context of the
shirt and why it exists- maybe a bit more about who the guy on it is.

Without this context, I ended up criticizing it for something it didn't
intend to portray- inadvertently insulting the subject in the process. :^(

Context! It's important! Not everyone picks up on every reference.

- Ian



On Wed, Jan 31, 2018 at 12:31 PM, Fred Cisin via cctalk <
cctalk@classiccmp.org> wrote:

> Gene wrote...
>>
>>> Just...no.
>>>
>> Yeah, agreed. No.
>>
>> Fred wrote...
>>
>>> The "nuts" and "bolts" should be capacitors and chips.
>>> The squared off U shaped object nearest on the desk >should be replaced
>>> by
>>>
>> an Escher Fork (aka impossible >trident).
>>
>>> soldering iron and scope, instead of hammer.
>>> maybe some magic smoke escaping from whatever he >works on.
>>> inadequate clutter.
>>> howzbout some books and schematics
>>>
>>
>> On Wed, 31 Jan 2018, Jay West wrote:
>
>> Completely agreed (Fred). But by the time you add all that... it's too
>> detailed for a t-shirt. Actually, already is.
>>
>
> Then, howzbout: leave out the guy.  He isn't "distinctive" enough to add
> much.  Then just show a cluttered vintage computer collector workbench.
>
>
>


-- 
   Ian Finder
   (206) 395-MIPS
   ian.fin...@gmail.com

Re: Keyboard "enthusiasts"

[Ian Finder via cctalk]

On Tue, Jan 23, 2018 at 11:32 AM, Daniel Seagraves via cctalk <
cctalk@classiccmp.org> wrote:

>
>
> > On Jan 23, 2018, at 12:15 PM, Chuck Guzis via cctalk <
> cctalk@classiccmp.org> wrote:
> >
> > Really, is this any worse than the gold bugs scrapping whole systems for
> > the prospective precious metal content?
>
> It seems worse to me because the gold bugs are ignorant and greedy but the
> keyboardists are “computer people” and should know better.
>
> Also as far as I know the gold bugs don’t deliberately target rare systems
> for their rarity.
>
>
Thanks, Daniel, for this succinct differentiation!


-- 
   Ian Finder
   (206) 395-MIPS
   ian.fin...@gmail.com

Re: Keyboard "enthusiasts"

[Ian Finder via cctalk]

I too have always enjoyed the analogy to ivory poachers.

On Tue, Jan 23, 2018 at 10:58 AM, william degnan via cctalk <
cctalk@classiccmp.org> wrote:

> >
> > Well, the latter are presumably in it as a business, whereas it seems
> these
> > people do it for 'fun'.
> >
> > Now there's an idea: perhaps we could convince them that pulling the
> wings
> > off flies is a more entertaining hobby?
> >
> > Noel
> >
>
> Did anyone attend VCF South East this past year, there was a large table
> run by a keyboard vendor.  Just keyboards, laid out like tusks from poached
> elephants.
>
> b
>



-- 
   Ian Finder
   (206) 395-MIPS
   ian.fin...@gmail.com

Re: Apollo Software

[Ian Finder via cctalk]

Bill,

I have an Apollo here with an 8" drive and I'm hunting for an 8" Domain
media set so I can reinstall the OS.
If you get them to me I can image them and send images to Al.

- Ian

On Tue, Jan 23, 2018 at 7:44 AM, Daniel Seagraves via cctalk <
cctalk@classiccmp.org> wrote:

>
>
> > On Jan 23, 2018, at 9:33 AM, jim stephens via cctalk <
> cctalk@classiccmp.org> wrote:
>
> > The real work was done in the back rooms @ Mission control, with certain
> features implemented on the systems onboard the rocket.
> >
> > You couldn't carry out a mission w/o the ground supporting either system
> with computations to the onboard systems.  You didn't punch in the address
> of the moon on any system onboard the rocket, you got pre-computed
> parameters from ground  computations that the flight computers carried out.
>
> That’s exactly what I was trying to point out. What we have is a
> relatively small piece of the entire puzzle. People seem to think that just
> because a few versions of CM and LM software exist all is saved and done,
> but it’s really only the user interface to a much larger stack. You can't
> just fire up the AGC and push the “land on the moon” button. You can run it
> by itself and look at the idle loop or display the clock but getting it to
> actually DO anything close to its original tasks requires input from a lot
> of missing pieces. We aren’t trying to just run it in a box, that’s been
> done. We’re making it FLY.
>
> > I'm not getting your "absolutely wrong" part.
>
> He said "The Saturn IBM firmware is lost, but was under command of the LM
> and CM computers”. This is absolutely wrong. It was the other way around.
>
>
>


-- 
   Ian Finder
   (206) 395-MIPS
   ian.fin...@gmail.com

Re: Keyboard "enthusiasts"

[Ian Finder via cctalk]

I get these all the time with Lisp Machines. "Yo can I get a keyboard!"

UGH.

On Tue, Jan 23, 2018 at 10:15 AM, Chuck Guzis via cctalk <
cctalk@classiccmp.org> wrote:

> On 01/23/2018 09:44 AM, Daniel Seagraves via cctalk wrote:
>
> > One of them scrapped a Symbolics XL for the keyswitches. That would
> > be bad enough, but it gets worse - They did because they thought it
> > was a CADR "Space Cadet” keyboard.
> Really, is this any worse than the gold bugs scrapping whole systems for
> the prospective precious metal content?
>
> --Chuck
>



-- 
   Ian Finder
   (206) 395-MIPS
   ian.fin...@gmail.com

Re: Sun 3/50 processor board and unknown processor

[Ian Finder via cctalk]

The second board is clearly out of a ComputerVision CADDstation.

On Tue, Nov 21, 2017 at 4:38 AM, Camiel Vanderhoeven via cctalk <
cctalk@classiccmp.org> wrote:

> On 11/21/17, 3:40 AM, "cctalk on behalf of Charles Dickman via cctalk"
>  wrote:
>
>
> >It looks like board 2 is for a Sun 3/50 workstation. Board 1 is some
> >kind of micro-programmed processor based on AM29331 and AM29331. There
> >are also some Analog Devices DSPs.
> >
> >AM29000 based processor with Analog Device DSPs
> >http://www.chdickman.com/board1.jpg
>
> In the bottom right hand corner, above ³COMPONENT SIDE², there is some
> lettering that seems to read ³COMPUTER Š BEDFORD MA². Given the DSP¹s, the
> MITRE corporation comes to mind. This might have been part of some
> military or civil aviation signal processing system.
>
> Camiel
>
>
>


-- 
   Ian Finder
   (206) 395-MIPS
   ian.fin...@gmail.com

Re: Tek 4051 semi-repaired

[Ian Finder via cctalk]

Does it warm up or flood?

"When I got my 4051, on power up there
would be no voltage to the motherboard and nothing came up on the screen.
That has been fixed, however we still do not have any kind of prompt or
anything appearing."

Care to share with the class what you've done so far?

On Tue, Oct 3, 2017 at 9:29 AM, Brad H via cctalk 
wrote:

> Hi there,
>
>
>
> My go-to guy for CRT stuff has informed me that he has the CRT on my 4051
> working and that the tube is good.  When I got my 4051, on power up there
> would be no voltage to the motherboard and nothing came up on the screen.
> That has been fixed, however we still do not have any kind of prompt or
> anything appearing.
>
>
>
> Wondering if anyone has any ideas on where to go from here?   I'm picking
> up
> the machine this week and will do some more testing.. hopefully the board
> didn't take any damage while he was working on the CRT.
>
>
>
> Brad
>
>


-- 
   Ian Finder
   (206) 395-MIPS
   ian.fin...@gmail.com

Re: Tek 4051 users and replacement for the 405x QIC Tape

[Ian Finder via cctalk]

On Tue, Oct 3, 2017 at 9:12 AM, Randy Dawson via cctalk <
cctalk@classiccmp.org> wrote:

>
> I think he has a few of these left.  The big problem is the RAMPACK
> plastic cases are recycled from old ROMPACKs and these are in short supply.
>
>
> He is looking for a 'Toaster' too.  Can we get a count of active 405x
> users out there, and start a group effort to build, swap, restore 405x
> hardware?
>
>
Were you looking to start a list? A group? A megathread?
Proud owner of a few 4051s and a basket case 4054 reporting in here.

I think Bob R. on the list had done a printable version of the ROMPACK
cases. It may be worth asking him about it, he might be willing to provide
an STL file.

Re: COTROL SYS> Navy using X Boxes to control sub periscopes Check this out!

[Ian Finder via cctalk]

That's very nice, Ed. What does this have to do with classic computing,
exactly?

On Wed, Sep 20, 2017 at 13:46 Ed via cctalk  wrote:

> Navy using X Boxes to control sub  periscopesCheck this  out!
>
> http://www.foxnews.com/tech/2017/09/20/us-navy-will-use-xbox-controllers-to-
> operate-submarine-periscopes.html
> 
>
-- 
   Ian Finder
   (206) 395-MIPS
   ian.fin...@gmail.com

WTB: IBM 7060 aka MP3000

[Ian Finder via cctalk]

I'm looking for a small s390 machine to do some learning with.
If you have one for sale, please contact me off-list.

I don't have an enterprise-sized budget but can make a reasonable
four-digit offer.

Thanks,

- I

Searching for a Sequent

[Ian Finder via cctalk]

Reiterating my yearly wanted post for a Sequent Symmetry of any kind. This
is the first system I ever got root on- I'd love to find one some day.

If you have any leads, please let me know.

Thanks,

- Ian

-- 
   Ian Finder
   (206) 395-MIPS
   ian.fin...@gmail.com

Re: New HP42s clone almost available

[Ian Finder via cctalk]

On Mon, Apr 3, 2017 at 12:07 AM, Ed via cctalk 
wrote:

> Good  hear it stood the  test of  time! As an HP  PC  dealer in the 80s
> into early 90s   we ha a calculator   contract with HP also and...
> we  sold the heck out of them!
>
> Is it the only  one of the 10  series  calcs that stayed in  production?
>
> I have a set of the  special demo versions that were mounted on a
> descriptive plaque
> that had been in the PHX HP Corp demo center... when they redid that   they
> knew I
> Hoarded stuff and   sent them over.  For  some of the  10 series that were
> still being used
> we had them on the  display  floor  the others went into the  the suites
> next to the business
> in the historical display.
>
> Ed#
>
>
> In a message dated 4/2/2017 8:50:16 P.M. US Mountain Standard Time,
> cctalk@classiccmp.org writes:
>
> On Sun,  2 Apr 2017, Ed via cctalk wrote:
>
> > That is an undertaking  indeed!  I had not seen this   Ed#
> > Someone   said the 12c was still being made?
>
> The 12c never went out of  production.  It has been continuously updated.
> A lot of bankers,  insurance people, etc still rely on them.
>
>
> --
> David  Griffith
> d...@661.org
>
> A: Because it fouls the order in which people  normally read text.
> Q: Why is top-posting such a bad thing?
> A:  Top-posting.
> Q: What is the most annoying thing in  e-mail?
>
>
So to necromance this thread, because why not, I got a DM42 beta unit last
month and it is AMAZING.

Even the pre-release hardware is pretty much up to production snuff, and in
my opinion this is the coolest thing SwissMicros has done to date.

I just felt like sending out a quick testimonial now that the thing is
in-hand.

SwissMicros deserves the business; they've come a very long way from the
original cute-but-not-super-useful credit card sized HP Voyager clones to
something as mature and powerful as the DM42.

-- 
   Ian Finder
   (206) 395-MIPS
   ian.fin...@gmail.com

Re: Repurposed Art (ahem...)

[Ian Finder via cctalk]

Keyboard collectors are a great evil in this world. I liken them to ivory
poachers.

On Tue, Jul 18, 2017 at 10:03 AM, Fred Cisin via cctalk <
cctalk@classiccmp.org> wrote:

> Re-purposed art or vandalism?
>>> http://www.ebay.com/itm/253015301943
>>>
>>
> On Tue, 18 Jul 2017, Eric Christopherson via cctalk wrote:
>
>> It (literally) looks like something out of Pee-Wee's Playhouse.
>>
>
> Earlier than that.
> The seller may have grown up with Peewee Herman,
> but that kind of painting decoration, with such color schemes and
> disjointed themes, wasn't all that uncommon in the late sixties.
>
>
>


-- 
   Ian Finder
   (206) 395-MIPS
   ian.fin...@gmail.com

Re: Back To: Getting to NeXt Command prompt

[Ian Finder via cctalk]

Wow those threads make me cringe.

Keyboard poachers are /really/ annoying.



On Wed, Jun 21, 2017 at 6:19 PM, Chris Hanson via cctalk <
cctalk@classiccmp.org> wrote:

> It’s command-backquote, not quote. The backquote key is in the upper left
> of the numeric keypad.
>
> Sorry for linking to a keyboard poaching site but it has a couple good
> images of the NeXT keyboards: https://deskthority.net/
> photos-f62/next-non-adb-keyboard-t12259.html  photos-f62/next-non-adb-keyboard-t12259.html>
>
>   -- Chris
>
> > On Jun 21, 2017, at 5:42 AM, william degnan via cctalk <
> cctalk@classiccmp.org> wrote:
> >
> > Confirmed.  It's Command + '
> >
> > (not shift + Command + ~)
> >
> > "Command + The key with the tilde and the single quote in the number pad
> of
> > a Next keyboard:"
> >
> > Bill
>
>


-- 
   Ian Finder
   (206) 395-MIPS
   ian.fin...@gmail.com

Sun2 replacement keyboard?

[Ian Finder via cctalk]

Hi folks,

Does anyone know if the Sun2 can take a Sun3 keyboard with an adapter?
Is the signaling the same?

Otherwise, does someone have one I might be able to buy?

Same question applies to the mouse.

Thanks,

- Ian

-- 
   Ian Finder
   (206) 395-MIPS
   ian.fin...@gmail.com

Re: Ebay - PDP-8/M

[Ian Finder via cctalk]

I think he may have already picked it up. I believe he is trying to un-pick
it up using eBay.

On Fri, May 26, 2017 at 3:08 PM, Glen Slick via cctalk <
cctalk@classiccmp.org> wrote:

> On Fri, May 26, 2017 at 12:05 PM, Anders Nelson via cctalk
>  wrote:
> > Oh boyee:
> >
> > http://www.ebay.com/itm/112414315290
> >
> > I thought the M variants all had blank front panels and bootstraps, but
> > this has all the pretty stuff!
> >
>
> That one is close to Josh, maybe he should pick it up. :) :)
>



-- 
   Ian Finder
   (206) 395-MIPS
   ian.fin...@gmail.com

Re: Re: Directory of old computer collectors

[Ian Finder via cctalk]

JP wrote:
>Randy, with all due respect, have you seen how much an Apple 1 or a
Lisa... or even their _drives_ go for lately?
>Symbolics machines? Crays? One-offs or limited-run machines?

While an honor to see my old favorite- the Symbolics- in a line with Cray
and Apple 1, they ain't THAT expensive. Just a couple guys this year got
into it on a few auctions. I've seen 11/40s go for far more. :)

On that note- I'd also *love* to see someone try and make it out of my
house with one. Enjoy your hernia.

On Wed, May 24, 2017 at 6:23 AM, JP Hindin via cctalk  wrote:

>
>
> On Wed, 24 May 2017, Randy Dawson via cctalk wrote:
>
>> Hi Jim,
>>
>> Anybody that is paranoid about telling their location and the computer
>> dinosaurs running in their basement needs a head alignment.
>>
>> Another case of some guy over-estimating the worth of the junk we hold on
>> to.  It is zero, of value to only us that play with it.
>>
>> And our numbers are diminishing every day.
>>
>
> Randy, with all due respect, have you seen how much an Apple 1 or a
> Lisa... or even their _drives_ go for lately? Symbolics machines? Crays?
> One-offs or limited-run machines?
>
> While I don't disagree that a lot of us (without question myself included)
> vastly overrate their collection of bits and pieces, that is not to say
> that _some_ of them can be worth staggering amounts of money to the right
> people.
>
> And people have broken into places for dollars worth of easily portable
> things - let alone tens of thousands+ worth.
>
> Caution is not undue or unwise.
>
>  - JP
>
>
> 
>> From: jim stephens 
>> Sent: Tuesday, May 23, 2017 11:26 PM
>> To: Randy Dawson; steven stengel
>> Subject: Fwd: Re: Directory of old computer collectors
>>
>>
>> Randy,
>> I'm sort of running interference for STeve on the list.  Since his email
>> is cc'd here and he's a subscriber I suspect has seen this.
>>
>> the tost...@yahoo.com is his email for these
>> computer matters.
>>
>> People are getting a bit torqued out over non issues, I think, thanks for
>> chiming in.  Hopefully we can all help each others collecting efforts with
>> a bit of visibility.
>>
>> thanks
>> jim
>>
>>
>>  Forwarded Message 
>> Subject:Re: Directory of old computer collectors
>> Date:   Wed, 24 May 2017 05:19:41 +
>> From:   Randy Dawson > >
>> To: jim stephens ,
>> steven stengel , General
>> Discussion: On-Topic and Off-Topic Posts > cctalk@classiccmp.org>
>>
>>
>>
>> Hi Jim,
>>
>>
>> add me to your list.
>>
>>
>> I am in Thousand Oaks, CA (Los Angeles area).
>>
>>
>> I have a Tektronix 4051 vector graphics computer running, just BASIC
>> games at the moment. I have  a Compaq Model 1 with the PC-IDE flash setup,
>> running Autocad, Versacad, Dr. Halo, Turbo-C, MS-Fortran.
>>
>>
>> I am in conversation with some Tek guys to add a modern RAM flash drive
>> to the 4051 to replace the DC300 tape.  We are about to build some PCBs for
>> it, let me know if you have a 4051.
>>
>>
>> Randy
>>
>>
>> 
>> From: cctalk > ccmp.org> on behalf of steven stengel via cctalk > >
>> Sent: Tuesday, May 23, 2017 12:05 PM
>> To: jim stephens; General Discussion: On-Topic and Off-Topic Posts
>> Subject: Re: Directory of old computer collectors
>>
>> I will post anything you want me to, just tell me.
>> email is not necessary, a link or website will do fine as well.The map is
>> intended to be a method to see who's where for assistance, trading,
>> meet-ups, etc.There's hundreds of people here, but few know where each
>> other live, I suppose.
>>
>>
>>
>>  From: jim stephens via cctalk > cctalk@classiccmp.org>
>> To: cctalk@classiccmp.org
>> Sent: Tuesday, May 23, 2017 12:09 AM
>> Subject: Re: Directory of old computer collectors
>>
>>
>>
>> On 5/22/2017 11:06 PM, Lyle Bickley via cctalk wrote:
>>
>>> On Mon, 22 May 2017 16:29:22 -0400
>>> william degnan via cctalk >> cctalk@classiccmp.org> wrote:
>>>
>>> can you send a link to the people who are on the list so they can see
 their listing?  I personally don't mind as long as any record that
 includes me personally does not include my email address or phone
 number.I much prefer to send people to my web page contact form.

>>> Folks who are on the list should have the opportunity to approve what
>>> will and will not be posted about them. That's not only a legal
>>> requirement in many States, but also common courtesy.
>>>
>>> Regards,
>>> Lyle
>>>
>> You do get that this isn't cctalk, but one that people had already 

Re: AT Work Group System Voice Power voice processing boards for Unix PC 6300/7300 for sale

[Ian Finder via cctalk]

Do not buy these expecting the UnixPC product, like Sellam has specified.
They are for a 386 intel/isa machine.

Also in the title, which is confusing, Sellam has also written 6300, which
is an AT 8086 PC clone that MAY have ISA and is not a UnixPC. It will
*also* not support this card as a 386 is required.

On Thu, May 18, 2017 at 11:52 AM, Ian Finder  wrote:

> These are clearly for a PC. It's an ISA card and says "386" on it.
>
> On Wed, May 17, 2017 at 9:53 PM, Sellam Ismail via cctalk <
> cctalk@classiccmp.org> wrote:
>
>> I have two of these available for sale. Details here:
>>
>> http://www.vcfed.org/forum/showthread.php?57816-AT-amp-T-Wor
>> k-Group-System-Voice-Power-voice-processing-boards-for-Unix-
>> PC-6300-7300=461052#post461052
>>
>> Thanks!
>>
>> Sellam
>>
>
>
>
> --
>Ian Finder
>(206) 395-MIPS
>ian.fin...@gmail.com
>



-- 
   Ian Finder
   (206) 395-MIPS
   ian.fin...@gmail.com

Re: AT Work Group System Voice Power voice processing boards for Unix PC 6300/7300 for sale

[Ian Finder via cctalk]

These are clearly for a PC. It's an ISA card and says "386" on it.

On Wed, May 17, 2017 at 9:53 PM, Sellam Ismail via cctalk <
cctalk@classiccmp.org> wrote:

> I have two of these available for sale. Details here:
>
> http://www.vcfed.org/forum/showthread.php?57816-AT-amp-T-
> Work-Group-System-Voice-Power-voice-processing-boards-for-
> Unix-PC-6300-7300=461052#post461052
>
> Thanks!
>
> Sellam
>



-- 
   Ian Finder
   (206) 395-MIPS
   ian.fin...@gmail.com

Re: Oscilloscope Recommendation

[Ian Finder via cctalk]

+1 for the TDS540.


On Sun, Apr 30, 2017 at 11:54 shad via cctech 
wrote:

> Hello,
> all fine with Rigol or similar oscilloscopes, but there's a very important
> technical specification that often is not considered, which really DOES the
> difference between a cheap oscilloscope and a powerful one: waveforms per
> second.
> Suppose you are searching for a rare glitch, or that you are trying to
> trace an edge of a signal with infinite persistence.
> If the scope is a DSO, it just takes a sampling window,  the memory is full
> and requires data processing and display, in the meantime the signal is not
> analyzed, and you can lose important events.
> A DPO can capture the signal continuously, or at least with very short
> death time, and the display is updated using a large number of triggered
> sampling windows.
> Of course this kind requires a far powerful acquisition circuit.
>
> I really like DPO scopes in place of DSO, for example used Tek TDS540C or
> D, they are quite cheap, no electrolytic caps, and can be optionally
> expended to increase acquisition memory depth.
> Display is small and grey, but you can use a VGA monitor.
>
> My two cents.
>
> Andrea
>
-- 
   Ian Finder
   (206) 395-MIPS
   ian.fin...@gmail.com

Re: Oscilloscope Recommendation

[Ian Finder via cctalk]

I would suggest just about any used Tektronix TDS 200mhz or higher 4
channel scope with a good display- from the mid 90s or newer.

Make sure to look up the model year to ensure it has reliable caps.

I have not been a fan of the new designed-in-china test equipment like the
'rigol'


On Sat, Apr 29, 2017 at 10:59 Jon Elson via cctech 
wrote:

> On 04/29/2017 12:28 PM, Michael Thompson via cctech wrote:
> > The RICM just received $1,000 to buy a new oscilloscope. I would like a
> > four channel. and color would also be nice. The bandwidth doesn't need to
> > be high because we usually work on ancient equipment.
> >
> > What would you suggest?
> >
> Really NEW, or just new for your museum?  I got a Tek 2465
> on eBay that I am quite happy with, for quite a bit less
> money.  There are some decent import digital scopes (such as
> Rigol) that many people seem to find good.
> If you are not familiar with digital scopes, there are some
> gotchas there.  You can't tell the trigger rate from looking
> at the screen, but then they can see what happened BEFORE
> the trigger event, and can freeze a single-shot event for
> you to look at.  The good Tek DPO scopes have not come down
> enough to meet your price range (yet).
>
> Jon
>
-- 
   Ian Finder
   (206) 395-MIPS
   ian.fin...@gmail.com

Re: test, please ignore

[Ian Finder via cctalk]

ACK TEST RECEIVED LOUD AND CLEAR JAY!
Don't need a response, please ignore.

Cheers, Thanks,

- Ian

On Wed, Apr 26, 2017 at 5:39 PM, Jay West via cctalk 
wrote:

> Don't need a response, please ignore.
>
>
>
> J
>
>


-- 
   Ian Finder
   (206) 395-MIPS
   ian.fin...@gmail.com

Re: from reddit

[Ian Finder via cctalk]

I had worked out a deal with him for the Apollo, but I'm travelling so
pick-up will be hard (but doable as a last resort), and he won't ship.
If someone else plans to go up there, would you be willing to hold the
Apollo for me for a couple months so I can drive down and grab it this
summer?

It will be among a few other systems of it's kind here, and I can netboot
it over Apollo Token Ring. :^)

On Tue, Apr 4, 2017 at 8:36 AM, Pete Lancashire via cctalk <
cctalk@classiccmp.org> wrote:

> List of stuff in this post
>
> https://www.reddit.com/r/computercollecting/comments/
> 6395pt/so_i_bought_an_abandoned_storage_unit_in_paradise/
>
>
>
> On Tue, Apr 4, 2017 at 8:35 AM, Pete Lancashire 
> wrote:
>
> > https://www.reddit.com/r/retrobattlestations/comments/
> > 63b8bm/so_i_bought_an_abandoned_storage_unit_in_paradise/
> >
> > No association etc with the person
> >
> > -pete
> >
>



-- 
   Ian Finder
   (206) 395-MIPS
   ian.fin...@gmail.com

Need help with a rescue need Chico / Paradise, California (can someone pick-up and hold?)

[Ian Finder via cctalk]

If anyone would be willing to rescue and hold a small-ish (large desktop)
machine near there for later pickup by me this summer, it would be much
appreciated. I can pay you a small fee either in beer or American currency.

Please let me know if you're willing to help coordinate a rescue.

-- 
   Ian Finder
   (206) 395-MIPS
   ian.fin...@gmail.com

Got a Sun 2/120, ISO Sun 2/3 monitor, Sun 2 keyboard, Sun 2 mouse

[Ian Finder via cctalk]

Hi folks!

I recently acquired a functional Sun 2/120.

The framebuffer I have is switchable between TTL and ECL, so I can use
either an Sun 2 or Sun 3 monitor, which I am looking for.

I am also looking for a keyboard and mouse.

If anyone on list has any of these items and would be willing to sell them
to me, please contact me. I plan to completely restore the system.

Thanks,

- Ian

-- 
   Ian Finder
   (206) 395-MIPS
   ian.fin...@gmail.com

Re: Chip in first Apple AirPort WiFi

[Ian Finder via cctalk]

If I recall correctly, as you've noted it was a WaveLAN / Orinoco silver
card ('HERMES' chipset), connected via PCMCIA to a SBC based around an AMD
ELAN SC400 - 33AC 486-like CPU. It had something like a couple megs of RAM
and maybe 512K of FLASH. I don't know what OS it ran, if anything 'off the
shelf'

Why do you ask?

On Sat, Apr 1, 2017 at 10:40 AM, Tom Gardner via cctalk <
cctalk@classiccmp.org> wrote:

> Anyone know which Lucent semiconductor device or devices were used in the
> first Apple AirPort, the Lucent board was " Lucent WaveLAN Silver PC Card"
> but I'd like to know the devices used.
>
> Tom
>
>


-- 
   Ian Finder
   (206) 395-MIPS
   ian.fin...@gmail.com

Re: Apple 1, Commodore 65, Enigma Machine, Inventor of C++

[Ian Finder via cctalk]

On Wed, Mar 29, 2017 at 1:29 AM, Christian Corti via cctalk <
cctalk@classiccmp.org> wrote:

> On Tue, 28 Mar 2017, Evan Koblentz wrote:
>
>> "What do an Apple 1, Commodore 65, Enigma Machine, and the inventor of
>> C++ all have in common?"
>>
>
> They're just overestimated pieces of junk ;-)  (and C++, not its inventor)
> [duck...]
>
>
*applause* (except the enigma is neat)


-- 
   Ian Finder
   (206) 395-MIPS
   ian.fin...@gmail.com

Re: Borrowing a ADF scanner near Orangeburg SC next week?

[Ian Finder via cctalk]

Disregard. Purchased an Epson ES400. Fits in a carry on. Cute little thing.

Expect many GRiD Compass OS docs soon.

On Thu, Mar 9, 2017 at 18:56 Ian Finder  wrote:

> I'm going on an archiving trip to preserve a deserving piece of computer
> history, but it turns out the scanner I'm borrowing is overweight and
> united will charge $100-200 to check it each way.
>
> Before I buy one off amazon, I wanted to see if anyone on the list was
> local and could let us borrow one Tuesday-Friday.
>
> Looking for a heavy duty, double sided ADF deal.
>
> Thanks,
>
> - Ian
> --
>Ian Finder
>(206) 395-MIPS
>ian.fin...@gmail.com
>
-- 
   Ian Finder
   (206) 395-MIPS
   ian.fin...@gmail.com

Borrowing a ADF scanner near Orangeburg SC next week?

[Ian Finder via cctalk]

I'm going on an archiving trip to preserve a deserving piece of computer
history, but it turns out the scanner I'm borrowing is overweight and
united will charge $100-200 to check it each way.

Before I buy one off amazon, I wanted to see if anyone on the list was
local and could let us borrow one Tuesday-Friday.

Looking for a heavy duty, double sided ADF deal.

Thanks,

- Ian
-- 
   Ian Finder
   (206) 395-MIPS
   ian.fin...@gmail.com

Re: Looking to re-home some NeXT hardware

[Ian Finder via cctalk]

On Wed, Mar 8, 2017 at 15:50 Ed wrote:

> we may  some parts pieces  maybe  when  we stage  our  next cube...
>
> who knows  might pop up and  work  by it self..
>
> let me know what you are not  going to  used there.
> thx  Ed#
> _www.smecc.org_ (http://www.smecc.org)


Is someone testing a Markov chainer on the list? If so, you have some more
work to do...
-- 
   Ian Finder
   (206) 395-MIPS
   ian.fin...@gmail.com

Re: Sparcbook 3TX Hard Drive?

[Ian Finder via cctalk]

All I can say is good luck. These are typically the limiting reagent to
portable use. About half my sparcbooks have sleds, optimistically.

Any tadpole series 2 (P-series, N40, AlphaBook, Sparcbook) sled will work.

Sparcbook 3000 series caddies look identical but will not.

On Tue, Feb 28, 2017 at 08:07 Ben Sinclair via cctalk 
wrote:

> Hi Jerry, thanks for the info. I do have a some SCSI2SD adapters, though I
> would still have the problem with the weird internal connector and lack of
> a drive caddy to hold anything.
>
> I mean, I can't use a Sparcbook at the coffee shop with an external
> drive... That would be embarrassing!
>
> On Mon, Feb 27, 2017 at 8:10 PM, Jerry Kemp  wrote:
>
> > Hello Ben,
> >
> > Sorry I can not assist you directly.
> >
> > I believe that many people in your situation, and similar, are
> > successfully using the SCSI2SD adapter
> >
> > 
> >
> > Hope that there is something here that helps.
> >
> > Jerry
> >
> >
> >
> >
> > On 02/27/17 07:41 PM, Ben Sinclair wrote:
> >
> >> This is probably a long shot, but does anyone have a Sparcbook 3TX hard
> >> drive? I know they're difficult to find.
> >>
> >> I have a 3TX in great condition, but no drive.
> >>
> >> (hopefully this isn't a repost, I tried this when the list was having
> >> issues and don't think it went through)
> >>
> >>
>
>
> --
> Ben Sinclair
> b...@bensinclair.com
>
-- 
   Ian Finder
   (206) 395-MIPS
   ian.fin...@gmail.com