On 07/03/2018 01:58 PM, Fred Cisin via cctech wrote:
> On Tue, 3 Jul 2018, Stephen Pereira via cctech wrote:
>> I believe that Mike Douglas has a utility program that you can get
>> into a Northstar Horizon, and then it can receive a .DSK image sent
>> from the terminal and it will write the disk
I believe that Mike Douglas has a utility program that you can get into a
Northstar Horizon, and then it can receive a .DSK image sent from the terminal
and it will write the disk for you in the Horizon.
It’s called PCtoFlop and I think he has it in his archive here:
You "get it into a NorthStar", by already booting the NorthStar to
CP/M, and using PIP.
On Tue, 3 Jul 2018, allison via cctech wrote:
NO matter what first you have to boot the horizon and if you lack
prepared media its a hard stop.
Mike Douglass solved it by putting an Eprom on the ZPB-A as
On Tue, 3 Jul 2018, Stephen Pereira via cctech wrote:
I believe that Mike Douglas has a utility program that you can get into a
Northstar Horizon, and then it can receive a .DSK image sent from the terminal
and it will write the disk for you in the Horizon.
It’s called PCtoFlop and I think he
On 07/02/2018 06:27 PM, Fred Cisin via cctech wrote:
> On Mon, 2 Jul 2018, dwight via cctalk wrote:
>> I have a machine that I'm just now bringing up. I have some boot
>> software but it is TSS/A that is the accounting multi-user package.
>> I'd really like the TSS/B floppies instead. I'd settle
I'm told that the N* controller can write H89 formated disk but the H89
controller can't do N* format. I could have that backwards but that is what I
recall. One can't do the other.
The H89 hard sectored controller is single density only, while the newer N* can
do both single and double
Yes but they're in pretty bad shape the units are under a tarp in a Briar
Patch for about 2 years in the Pacific Northwest. Amazingly enough one of
the deflection boards had enough working parts the CPU board for the 4051
was so corroded the lids fell off the chips. I only kept them to offer the
On 2018-Jul-03, at 5:59 PM, Jon Elson via cctalk wrote:
> On 07/03/2018 03:35 PM, Ian Finder via cctalk wrote:
>> 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 -
On 07/03/2018 03:35 PM, Ian Finder via cctalk wrote:
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
On 2018-Jul-03, at 5:06 PM, Brent Hilpert via cctalk wrote:
> However, compare to:
> https://drive.google.com/file/d/1TJjeZqszca1C7XILsnDyO9D_r64ZMwoo/view
> the 2 & 3 pin labels on U184A should be swapped.
Whoops, correction to my correction, they got the pins right, but the +/- input
On 2018-Jul-03, at 1:21 PM, Monty McGraw via cctalk 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
Pete,
Thanks for checking on the display board.
Are any of the other boards, power supplies or keyboards left in the 4051
or 4052?
Monty
On Tue, Jul 3, 2018 at 4:19 PM, Pete Lancashire via cctalk <
cctalk@classiccmp.org> wrote:
> -- Forwarded message -
> From: Pete Lancashire
-- Forwarded message -
From: Pete Lancashire
Date: Tue, Jul 3, 2018, 2:18 PM
Subject: Re: Looking for Tektronix 4051 or 4052 Display Board
To: Monty McGraw
Yeah the two display boards went to Europe.
If anybody needs three perfectly good 11 inch CRTs, deflection yolks
excetera
Is 206 Washington ? I have the remains of a 4051 4052 and 4010 terminal
sitting outside in the scrap pile. Parts have gone to Europe but they're
still pieces left over
They were about 25 miles west of Portland Oregon.
On Tue, Jul 3, 2018, 1:35 PM Ian Finder via cctalk
wrote:
> These systems
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
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
On Tue, 3 Jul 2018, dwight via cctalk wrote:
I'm not as worried about 10 hard secrtored disk. I still have the punch
I had made for my H89. I can create 10 sector from old 360K disk.
If you have a working H89 (hard sectored), then you should be able to
write a program to run on the H89 to
I realize it's been a while since this happened:
http://e4aws.silverdr.com/hacks/6500_1/
But, I have pulled my hacked reader out from mothballs to read a CPU
someone is sending, so I thought I would inquire if others have 6500/1
units that want read.
Jim
--
Jim Brain
br...@jbrain.com
The degradation and attracting bacteria is also why geeks don’t get to
handle humans ... well, the halitosis, body odor, long hair/beards, etc.,
probably don’t help, either!
All the Best,
Jim
On Tue, Jul 3, 2018 at 9:09 AM js--- via cctalk
wrote:
>
> Different kind of oils, Christian. What
On 7/3/2018 3:58 AM, Christian Corti via
cctalk wrote:
On Mon, 2 Jul 2018, "j...@cimmeri.com"
wrote:
Seriously! Liam, don't you know that
handling paper with your hands
transfers oils to it and hastens its
decay? This is why gloves are worn
to handle old paper artifacts.
*lol*
> From: Glen Slick
> There are 88 41256 256Kx1 DRAMs on a 2MB MSV11-J. Each 512KB bank has
> 22 256Kx1 DRAMs organized as 16 data bits plus 6 ECC bits.
Umm, I think the internal organization is paired banks (one for even word
addresses, one for odd); the manual talks about doing
I'm not as worried about 10 hard secrtored disk. I still have the punch I had
made for my H89. I can create 10 sector from old 360K disk.
Dwight
From: cctalk on behalf of allison via cctalk
Sent: Tuesday, July 3, 2018 6:05:23 AM
To: cctalk@classiccmp.org
On 07/02/2018 11:31 PM, Fred Cisin via cctalk wrote:
>>> BUT, the Horizon can also manage 8" drives (SSSD soft-sector CP/M
>>> standard!) with appropriate controller, or use other S100 FDC boards.
>
> On Mon, 2 Jul 2018, allison via cctalk wrote:
>> Really? not any of the MDS (SD or DD)
On Mon, Jul 2, 2018 at 11:09 PM, Evan Koblentz via cctalk
wrote:
> Time to reveal a personal project related to vintage computing and unrelated
> to my role at VCFed.
>
> In the past two years, while getting neck-deep in the historic Lego 9700
> "Technic Control Center" set, I learned that there
Time to reveal a personal project related to vintage computing and
unrelated to my role at VCFed.
In the past two years, while getting neck-deep in the historic Lego 9700
"Technic Control Center" set, I learned that there is a TON of
information about this set (and about various related sets)
On Tue, 3 Jul 2018 at 12:08, Bill Degnan via cctalk
wrote:
>
> And wouldn't it be possible that tape strewn artistically is just that, a
> prop? Especially given the pattern on the tape? Who would display the
> real thing that way?
Exactly! :-) It looked like a dummy to me, artfully
On Tue, Jul 3, 2018, 4:58 AM Christian Corti via cctalk <
cctalk@classiccmp.org> wrote:
> On Mon, 2 Jul 2018, "j...@cimmeri.com" wrote:
> > Seriously! Liam, don't you know that handling paper with your hands
> > transfers oils to it and hastens its decay? This is why gloves are worn
> to
> >
On Mon, 2 Jul 2018, "j...@cimmeri.com" wrote:
Seriously! Liam, don't you know that handling paper with your hands
transfers oils to it and hastens its decay? This is why gloves are worn to
handle old paper artifacts.
*lol*
Especially with oiled paper tape that is exposed to daylight and
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