Re: Australian Computer Museum in trouble.

[Toby Thain via cctalk]

On 2018-07-27 3:54 PM, Rich Alderson via cctalk wrote:
> From: Toby Thain
> Sent: Friday, July 27, 2018 11:31 AM
> 
>> Or I may be confusing with other Australian evictions:
> 
>> https://www.theage.com.au/technology/chips-are-down-for-computer-museum-20030520-gdgsdr.html
> 
>> The Villawood location seems to be distinct from the warehouses that the
>> ACMS maintains?
> 
>> http://www.acms.org.au/warehouse.html
> 
>> Presumably they couldn't help out, even though Homebush is only a suburb
>> away.
> 
> May I point out that this *IS* the ACMS, according to Mr. Geremin's signature
> in the original post?
> 
> John GEREMIN, Honorary Treasurer, 0427 10 20 60.
> Australian Computer Museum Society Inc.
> PO Box 4005, Homebush, NSW, 2140.
> 

Yeah, I didn't miss the connection.

--T

> 
> 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/
> 

WTB: Data I/O 351A-070, 071, 072 Socket Adapters

[systems_glitch via cctalk]

All,

I'm looking for any or all of the following Data I/O Socket Adapters:

351A-070 (8741, 8748, etc)
351A-071 (8751)
351A-072 (8755A)

Thanks,
Jonathan

RE: Australian Computer Museum in trouble.

[Rich Alderson via cctalk]

From: Toby Thain
Sent: Friday, July 27, 2018 11:31 AM

> Or I may be confusing with other Australian evictions:

> https://www.theage.com.au/technology/chips-are-down-for-computer-museum-20030520-gdgsdr.html

> The Villawood location seems to be distinct from the warehouses that the
> ACMS maintains?

> http://www.acms.org.au/warehouse.html

> Presumably they couldn't help out, even though Homebush is only a suburb
> away.

May I point out that this *IS* the ACMS, according to Mr. Geremin's signature
in the original post?

John GEREMIN, Honorary Treasurer, 0427 10 20 60.
Australian Computer Museum Society Inc.
PO Box 4005, Homebush, NSW, 2140.


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/

DRIVE 95 a third party add on disc drive for HP95 LX Palmtop for sale or trade NOS untested from SMECC MUSEUM

[Ed Sharpe via cctalk]

DRIVE 95 a third party add on disc drive for HP95 LX Palmtop  for sale or trade 
NOS untested from SMECC MUSEUM

 
Found the  2  that   I had  left over  from the   computer business I had in AZ 
...  it is NOS  but  untested.  I will keep one  for the museums  collection  
at  SMECC   the other will be  SOLD  or  TRADED   for the museum's  advantage. 
Will  to listing to  offers  before  I  consider   EBAY.
 
See   www.smecc.org  for   areas for possible trades  we   save... it is not  
just  computers.
 
Money offers  considered  too.
 
Drop us a not  off-list  with subject of 

DRIVE  95 OFFER

in the  subject  line.
 
Thanks  Ed Sharpe archivist  for SMECC

Re: Epson DECTalk IC

[Torfinn Ingolfsen via cctalk]

Perhaps this is of interest: http://tinyvga.com/avr-isa-vga
(just found when googling, haven't tried it)

On Fri, Jul 27, 2018 at 6:24 PM, Anders Nelson via cctalk
 wrote:
> I'd love to find a project that interfaces the ISA and PC/104 bus to an
> Arduino/rPi/USB/whatever...
>
> http://www.vcfed.org/forum/showthread.php?39329-USB-to-ISA-Card-Emulator-System-or-the-ISA-XT-USB-Project
>
> https://www.reenigne.org/blog/isa-bus-sniffer-update/
>
> =]
> --
> Anders Nelson
>
> +1 (517) 775-6129
>
> www.erogear.com
>
>
> On Fri, Jul 27, 2018 at 12:00 PM Jason T via cctalk 
> wrote:
>
>> On Thu, Jul 26, 2018 at 3:12 PM Cameron Kaiser via cctalk
>>  wrote:
>> > I've got a serial port DECTalk Express. Works great except for the
>> battery
>> > pack. No, you can't have it.
>>
>> That's the DTC03 and it's an acceptable substitute for those of us who
>> can't find a DTC01 for under $300.  I've wanted an 01 for years and
>> passed up a number of chances as their value went higher and higher.
>>
>> For those who want to play with the DECtalk engine, there is the
>> Windows software implementation which, last I tried, still runs in
>> modern Windows versions.  The software is "out there" and probably
>> easy to find.  When I last tried it is open to some doubt - might need
>> to run it in a VM these days :)
>>
>> There is also the PC ISA card DECtalk, whose DTCxx number I forget
>> (DTC07 maybe?)  I have one "somewhere" but have never had the software
>> for it.
>>
>> -j
>>



-- 
mvh
Torfinn

Re: Australian Computer Museum in trouble.

[Toby Thain via cctalk]

On 2018-07-27 2:23 PM, Toby Thain via cctalk wrote:
> On 2018-07-27 12:41 PM, Al Kossow via cctalk wrote:
>>
>>
>> On 7/26/18 6:00 PM, John GEREMIN via cctalk wrote:
>>
>>>  We have been told that BULLDOZERS will demolish our Villawood storage 
>>> space in 2 weeks.
>>>
>>> We have yet to find a suitable/affordable alternate space so ... "OPEN  
>>> DOOR  DAYS"
>>
>> How much notice were you given of this happening?
>> Rescues with weeks or days notice are a drag.
>>
>>
>>
> 
> 
> I don't have cites, but I seem to recall that the risk to this site has
> been in the air for a couple of years or more.
> 

Or I may be confusing with other Australian evictions:

https://www.theage.com.au/technology/chips-are-down-for-computer-museum-20030520-gdgsdr.html

The Villawood location seems to be distinct from the warehouses that the
ACMS maintains?

http://www.acms.org.au/warehouse.html

Presumably they couldn't help out, even though Homebush is only a suburb
away.

--Toby

> --T
> 

Re: Australian Computer Museum in trouble.

[Toby Thain via cctalk]

On 2018-07-27 12:41 PM, Al Kossow via cctalk wrote:
> 
> 
> On 7/26/18 6:00 PM, John GEREMIN via cctalk wrote:
> 
>>  We have been told that BULLDOZERS will demolish our Villawood storage space 
>> in 2 weeks.
>>
>> We have yet to find a suitable/affordable alternate space so ... "OPEN  DOOR 
>>  DAYS"
> 
> How much notice were you given of this happening?
> Rescues with weeks or days notice are a drag.
> 
> 
> 


I don't have cites, but I seem to recall that the risk to this site has
been in the air for a couple of years or more.

--T

Re: how good is the data reliability with CD ROM and DVD RAM?

[Fred Cisin via cctalk]

Again, I've been misunderstood.  I'm looking for an adapter that allows
one to use standard size SD cards in a MicroSD slot.


On Fri, 27 Jul 2018, Alexander Schreiber via cctalk wrote:

I'm not very optimistic here, given that the µSD card end of such an
adapter is going to be quite mechanically weak due to size and thickness
constraints. It would just be something that waits for a gentle accidental
push to break it to pieces.


Probably.
but, ideally, the male end would be the size of a micro-sd, with a cable 
from it, to avoid that, and to make placement of the female (SD) end more 
convenient.

Re: Australian Computer Museum in trouble.

[Anders Nelson via cctalk]

Oh boy, what items are they letting go?

--
Anders Nelson

+1 (517) 775-6129

www.erogear.com


On Fri, Jul 27, 2018 at 12:41 PM Al Kossow via cctalk 
wrote:

>
>
> On 7/26/18 6:00 PM, John GEREMIN via cctalk wrote:
>
> >  We have been told that BULLDOZERS will demolish our Villawood storage
> space in 2 weeks.
> >
> > We have yet to find a suitable/affordable alternate space so ... "OPEN
> DOOR  DAYS"
>
> How much notice were you given of this happening?
> Rescues with weeks or days notice are a drag.
>
>
>

Re: Troubleshooting HP 2116B

[Al Kossow via cctalk]

I have other 2116 cpu manuals, getting time to do anything to find them or look 
for differences is a problem.

On 7/27/18 4:14 AM, Christian Corti via cctalk wrote:
> Ok, so I've got the computer almost running now. I now need to fix both sense 
> amplifier cards. One (0..4k) sometimes
> reads a one for bit 3 after the machine has warmed up. The other (4..8k) has 
> a stuck one for bit 7.
> Swapping these cards make the errors move to the other core bank respectively.
> 
> I have the newer cards, 02116-6298, not the older 02115-6001
> The latter has CA3028A used as sense amplifiers. My card uses HP 1820-0183 
> (metal can IC from RCA). I guess that it is
> also a CA3028A or maybe a CA3053. Can anyone confirm this?
> 
> Next, the manual on bitsavers (02116-9153_2116B_Vol2_Oct70, and the same as 
> found on the hpmuseum site) not only
> contains some errors (see my other post about the front panel lamps). It has 
> also some badly scanned pages with parts
> missing, notably page 5-50 (PDF page 350) lacks the right part of the page. 
> Is there a better scan available? My 1968
> copy does not list the 02116-6298.
> 
> Christian

Re: Australian Computer Museum in trouble.

[Al Kossow via cctalk]

On 7/26/18 6:00 PM, John GEREMIN via cctalk wrote:

>  We have been told that BULLDOZERS will demolish our Villawood storage space 
> in 2 weeks.
> 
> We have yet to find a suitable/affordable alternate space so ... "OPEN  DOOR  
> DAYS"

How much notice were you given of this happening?
Rescues with weeks or days notice are a drag.

RE: Epson DECTalk IC

[Henk Gooijen via cctalk]

IIRC, that is indeed the DTC07.
I think I have that board, together with the “mating” loudspeaker and
probably also the software. I will check next time I go to my “museum”.

Van: Jason T via cctalk
Verzonden: vrijdag 27 juli 2018 18:00
Aan: General Discussion: On-Topic and Off-Topic 
Posts
Onderwerp: Re: Epson DECTalk IC

There is also the PC ISA card DECtalk, whose DTCxx number I forget
(DTC07 maybe?)  I have one "somewhere" but have never had the software
for it.

-j

Re: Epson DECTalk IC

[Anders Nelson via cctalk]

I'd love to find a project that interfaces the ISA and PC/104 bus to an
Arduino/rPi/USB/whatever...

http://www.vcfed.org/forum/showthread.php?39329-USB-to-ISA-Card-Emulator-System-or-the-ISA-XT-USB-Project

https://www.reenigne.org/blog/isa-bus-sniffer-update/

=]
--
Anders Nelson

+1 (517) 775-6129

www.erogear.com


On Fri, Jul 27, 2018 at 12:00 PM Jason T via cctalk 
wrote:

> On Thu, Jul 26, 2018 at 3:12 PM Cameron Kaiser via cctalk
>  wrote:
> > I've got a serial port DECTalk Express. Works great except for the
> battery
> > pack. No, you can't have it.
>
> That's the DTC03 and it's an acceptable substitute for those of us who
> can't find a DTC01 for under $300.  I've wanted an 01 for years and
> passed up a number of chances as their value went higher and higher.
>
> For those who want to play with the DECtalk engine, there is the
> Windows software implementation which, last I tried, still runs in
> modern Windows versions.  The software is "out there" and probably
> easy to find.  When I last tried it is open to some doubt - might need
> to run it in a VM these days :)
>
> There is also the PC ISA card DECtalk, whose DTCxx number I forget
> (DTC07 maybe?)  I have one "somewhere" but have never had the software
> for it.
>
> -j
>

Re: Epson DECTalk IC

[Jason T via cctalk]

On Thu, Jul 26, 2018 at 3:12 PM Cameron Kaiser via cctalk
 wrote:
> I've got a serial port DECTalk Express. Works great except for the battery
> pack. No, you can't have it.

That's the DTC03 and it's an acceptable substitute for those of us who
can't find a DTC01 for under $300.  I've wanted an 01 for years and
passed up a number of chances as their value went higher and higher.

For those who want to play with the DECtalk engine, there is the
Windows software implementation which, last I tried, still runs in
modern Windows versions.  The software is "out there" and probably
easy to find.  When I last tried it is open to some doubt - might need
to run it in a VM these days :)

There is also the PC ISA card DECtalk, whose DTCxx number I forget
(DTC07 maybe?)  I have one "somewhere" but have never had the software
for it.

-j

RE: Troubleshooting HP 2116B

[David Collins via cctalk]

Christian, I tried to track down details of the 1820-0183 and the manuals
appear to say it's an RCA item, part number 80170 but I cant find anything
with that number anywhere - you are probably on the right track with a
CA3082A or similar.  

My experience in fixing similar faults on the memory boards of the 2116A was
that the transistors were often leaky which created stuck bits.  Sometimes I
had to swap parts around between working and non-working bits to isolate the
faulty items and it turned out exact replacements for the bad transistors
were still available for purchase. 

If you're prepared to swap components around on your boards to troubleshoot,
you might by lucky and find that the ICs are OK.  

David Collins

-Original Message-
From: cctalk  On Behalf Of Christian Corti
via cctalk
Sent: Friday, 27 July 2018 9:14 PM
To: cctalk@classiccmp.org
Subject: Troubleshooting HP 2116B

Ok, so I've got the computer almost running now. I now need to fix both
sense amplifier cards. One (0..4k) sometimes reads a one for bit 3 after the
machine has warmed up. The other (4..8k) has a stuck one for bit 7.
Swapping these cards make the errors move to the other core bank
respectively.

I have the newer cards, 02116-6298, not the older 02115-6001 The latter has
CA3028A used as sense amplifiers. My card uses HP
1820-0183 (metal can IC from RCA). I guess that it is also a CA3028A or
maybe a CA3053. Can anyone confirm this?

Next, the manual on bitsavers (02116-9153_2116B_Vol2_Oct70, and the same as
found on the hpmuseum site) not only contains some errors (see my other post
about the front panel lamps). It has also some badly scanned pages with
parts missing, notably page 5-50 (PDF page 350) lacks the right part of the
page. Is there a better scan available? My 1968 copy does not list the
02116-6298.

Christian

Re: Strange third party board in PDP-11/45

[Noel Chiappa via cctalk]

> As to what _else_ it is doing, and why it has the cable to the main
> card... I think that it must intercept MSYN from the processor and only
> let it pass if there's no hit in the cache.
> (To explain why it would need to do that... normally with the MS11,
> there's a static partitioning between FastBus memory and UNIBUS A
> memory. So when the CPU goes to do a memory cycle, it can put the
> address out on both the UNIBUS and FastBus, with the certainty that it
> will only get a reply on one.

So, my guess was wrong there. I had _assumed_ that when doing a memory
operation, the CPU started a cycle on both busses, to minimize the delay on
the UNIBUS cycle if the MS11 on the FastBus didn't have that location. (I had
previously checked, and there is an 'I have that location' signal which the
MS11 sends back, making the concept of a cache possible.)

Well, no. In the "KB11-A CPU Maintenance Manual" (DEC-11-HKBB-D), section
7.7.1 ("Bus Control Introduction"), it says:

  If the address applies to a Fastbus device, that device will respond in time
  to inhibit the UNIBUS MSYN signal

(It turns out the KB11-A is very clever; it has to delay for a bit after
asserting the address, etc, signals on the UNIBUS, for de-skew, before it can
assert MSYN, and during that delay, in parallel, it checks to see if the MS11
has that location.)

So my theory about what that double-card does (prevent an MSYN sent to main
memory on a cache hit) is apparently wrong.


Which leaves the question of what that card _does_ do...

The cache _does_ need to have the A and B UNIBUS tied together, so that it can
snoop UNIBUS memory cycles (which are on the A UNIBUS) via the B UNIBUS (which
is what it has access to on the backplane), _but_ it doesn't need a special
card, with i) active logic, and b) a cable back to the main board, to do that
- a regular M9200 will do that.

The cable back to the main card, and the logic on the two dual-width cards,
mean it wants to interfere somehow in the connection between the A and B
UNIBUS. But if not the MSYN thing, what else could it be?  I have pondered
that question, but I can't think of anything.

It can't be doing anything with interrupts or DMA, I would think, so no grant
interception. So what else could it be? Anyone have any ideas?

Noel

RE: SCO Skunkware?

[james via cctalk]

I have Skunkware 7 (1997) and Skunkware 98 (1998) if they will do. What is
your desire?

On 7/25/18 6:53 PM, David Griffith via cctalk wrote:
> 
> Does anyone have any Skunkware ISOs from around 1995 to 1998?
> 

Troubleshooting HP 2116B

[Christian Corti via cctalk]

Ok, so I've got the computer almost running now. I now need to fix both 
sense amplifier cards. One (0..4k) sometimes reads a one for bit 3 after 
the machine has warmed up. The other (4..8k) has a stuck one for bit 7.
Swapping these cards make the errors move to the other core bank 
respectively.


I have the newer cards, 02116-6298, not the older 02115-6001
The latter has CA3028A used as sense amplifiers. My card uses HP 
1820-0183 (metal can IC from RCA). I guess that it is also a CA3028A or 
maybe a CA3053. Can anyone confirm this?


Next, the manual on bitsavers (02116-9153_2116B_Vol2_Oct70, and the same 
as found on the hpmuseum site) not only contains some errors (see my other 
post about the front panel lamps). It has also some badly scanned pages 
with parts missing, notably page 5-50 (PDF page 350) lacks the right part 
of the page. Is there a better scan available? My 1968 copy does not list 
the 02116-6298.


Christian

Re: how good is the data reliability with CD ROM and DVD RAM?

[Carlo Pisani via cctalk]

DVD-RAM: Is it a reliable technology?

nobody has yet written about it :P

Re: how good is the data reliability with CD ROM and DVD RAM?

[Alexander Schreiber via cctalk]

On Wed, Jul 25, 2018 at 04:28:54PM -0700, Chuck Guzis wrote:
> On 07/25/2018 02:56 PM, Alexander Schreiber wrote:
> 
> > Of course there are. Since both SD cards and µSD cards have identical
> > electrical and protocol interfaces, those adapters are just passive pieces
> > of plastic and wires. In fact, a lot of µSD cards sold these days come
> > packaged with a µSD to SD card adapter.
> 
> Again, I've been misunderstood.  I'm looking for an adapter that allows
> one to use standard size SD cards in a MicroSD slot.

Ah, sorry.

> I can find only one incarnation of this idea in a rather shoddy-locking
> hunk of F44 PCB with a uSD socket mounted on it.
> 
> If someone knows of a slicker, better-designed adapter, I'd like to see it.

I'm not very optimistic here, given that the µSD card end of such an
adapter is going to be quite mechanically weak due to size and thickness
constraints. It would just be something that waits for a gentle accidental
push to break it to pieces.

Kind regards,
Alex.
-- 
"Opportunity is missed by most people because it is dressed in overalls and
 looks like work."  -- Thomas A. Edison

Re: RK05 spindle pulleys - trade 50Hz vs 60Hz?

[Alan Frisbie via cctalk]

Chuck Guzis  wrote:

> In WWII radio equipment, MGs in a unitzed form called
> "dynamotors" were used to supply the high-voltage anode voltage
> for the tubes.

And long after WWII!   In the 1960s, I had a Motorola 140D (140
for the power, "D" standing for Dynamoter) mobile radio (6 meter
ham band) in my car.   Everytime I keyed the mike, the dynamoter
would instantly spin up with a loud whine.   Such radios were
normally housed in the trunk of the car and required heavy wire
to carry the 12 volt battery current for the dynamoter.

My Monarch 10EE lathe originally came with a big motor-generator
to power the variable-speed DC motor.   Later versions use
thyratrons, while even later ones were solid state, but they all
continued to use DC motors.   The variable-speed DC drive was
very similar (identical?) to elevator drives, known as the
Ward-Leonard system.

To bring this back to the RK05, someone asked if anyone had a
copy of the RK05 IPB.   If you still need it, let me know and
I'll dig it out.   I haven't packed it for my move yet, but
the drives are.

Alan

Australian Computer Museum in trouble.

[John GEREMIN via cctalk]

Australian COMPUTER MUSEUM --  Dispersal Days  --  Villawood NSW.

 We have been told that BULLDOZERS will demolish our Villawood storage space in 
2 weeks.

We have yet to find a suitable/affordable alternate space so ... "OPEN  DOOR  
DAYS"

The old fruit shop at  888 Woodville Road, VILLAWWOOD, will be open for anyone
who cares to come and take anything away and help preserve our computing 
heritage.

Hours:  Sat 28th/Sun29th  9am to 9pm, then Monday-Friday 10am to 10pm, repeat 
the next week.

Off-street parking, easiest access is from south (Hume Hwy), see Google Maps.

Bring your Car, Van or Ute and enough muscle to help empty our shed.

Please tell your friends and/or work colleagues.

--
John GEREMIN, Honorary Treasurer, 0427 10 20 60.
Australian Computer Museum Society Inc.
PO Box 4005, Homebush, NSW, 2140.


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