20 Jun
2018
20 Jun
'18
5:53 a.m.
I was successfull at capturing all the files from a 4051 Graphics T1 tape
last weekend.
Here is the link to a couple of photos of the process:
Capturing Tektronix 4051 Graphics T1 tape files to laptop
<https://drive.google.com/open?id=18hROXB28PD9Z_GYDNNSXGPK4Pv7GQD8w>
First I replaced the disintegrated drive belt with one from a NOS 3M DC6250
cartridge.
I used my 4051 to PC serial transfer program on my recently repaired and
upgraded 4054A.
I set the comm speed of the 4054 serial interface to the maximum 9600 baud,
but as it is 7-bit, my program changes all 32 Tektronix control characters
to "~X~" where X is the ASCII character corresponding to that control
character.
This way I don't lose any of the Tektronix 405x text formatting in the
transfer.
I was using ExtraPutty on the laptop to capture the program text strings,
then copied the statements into Notepad++ and saved each file.
I am also working on a Tektronix 4051/52/54 compatible GPIB MicroSD flash
drive that will emulate the Tektronix 4924 tape drive - for all of us with
these computers to use - since both the tapes and drives are very
problematic after all these years.
This flash drive contains an Arduino with my code - based on the GPIB
flowcharts and info in a 4051 and 4052 GPIB manual.
You will be able to use the existing 405x program statements with @Y for
the drive GPIB address - since I don't know how to write a ROMPACK for any
of the series :)
I plan to organize the different captured tapes in directories on the flash
- and that may mean using a non-4924 GPIB secondary address for that
command. It also likely means I need to change any tape commands in each
program to use the flash drive GPIB address.
That's why I wanted to capture one of the Tektronix tapes with a menu - is
to ensure I could get those files to work on my flash drive design.
Monty McGraw
21 Jun
21 Jun
11:06 a.m.
a few months ago i had about 20 4051/4052 tapes. if i still do i can send
them to you
On Wed, Jun 20, 2018 at 5:53 AM Monty McGraw via cctalk <
cctalk at classiccmp.org> wrote:
I was successfull at capturing all the files from a
4051 Graphics T1 tape
last weekend.
Here is the link to a couple of photos of the process:
Capturing Tektronix 4051 Graphics T1 tape files to laptop
<https://drive.google.com/open?id=18hROXB28PD9Z_GYDNNSXGPK4Pv7GQD8w>
First I replaced the disintegrated drive belt with one from a NOS 3M DC6250
cartridge.
I used my 4051 to PC serial transfer program on my recently repaired and
upgraded 4054A.
I set the comm speed of the 4054 serial interface to the maximum 9600 baud,
but as it is 7-bit, my program changes all 32 Tektronix control characters
to "~X~" where X is the ASCII character corresponding to that control
character.
This way I don't lose any of the Tektronix 405x text formatting in the
transfer.
I was using ExtraPutty on the laptop to capture the program text strings,
then copied the statements into Notepad++ and saved each file.
I am also working on a Tektronix 4051/52/54 compatible GPIB MicroSD flash
drive that will emulate the Tektronix 4924 tape drive - for all of us with
these computers to use - since both the tapes and drives are very
problematic after all these years.
This flash drive contains an Arduino with my code - based on the GPIB
flowcharts and info in a 4051 and 4052 GPIB manual.
You will be able to use the existing 405x program statements with @Y for
the drive GPIB address - since I don't know how to write a ROMPACK for any
of the series :)
I plan to organize the different captured tapes in directories on the flash
- and that may mean using a non-4924 GPIB secondary address for that
command. It also likely means I need to change any tape commands in each
program to use the flash drive GPIB address.
That's why I wanted to capture one of the Tektronix tapes with a menu - is
to ensure I could get those files to work on my flash drive design.
Monty McGraw
7:54 p.m.
Hi Pete,
Send them to Monty - my 4051 is crippled with no serial port. I currently have no way to
get data in and out of this, except via Micheal's RAMSTORE modules.
Monty, I also looked at emulating the tape drive, or the floppy disk over GPIB, that would
be great, have the PC with a NI USB dongle.
I could not figure out how to make the National Instruments dongle act like a slave, its
normally the master.
Randy
________________________________
From: cctalk <cctalk-bounces at classiccmp.org> on behalf of Pete Lancashire via
cctalk <cctalk at classiccmp.org>
Sent: Thursday, June 21, 2018 11:06 AM
To: mmcgraw74 at gmail.com; General
Subject: Re: More tapes - This time all Tektronix 405x series
a few months ago i had about 20 4051/4052 tapes. if i still do i can send
them to you
On Wed, Jun 20, 2018 at 5:53 AM Monty McGraw via cctalk <
cctalk at classiccmp.org> wrote:
I was successfull at capturing all the files from a
4051 Graphics T1 tape
last weekend.
Here is the link to a couple of photos of the process:
Capturing Tektronix 4051 Graphics T1 tape files to laptop
<https://drive.google.com/open?id=18hROXB28PD9Z_GYDNNSXGPK4Pv7GQD8w>
First I replaced the disintegrated drive belt with one from a NOS 3M DC6250
cartridge.
I used my 4051 to PC serial transfer program on my recently repaired and
upgraded 4054A.
I set the comm speed of the 4054 serial interface to the maximum 9600 baud,
but as it is 7-bit, my program changes all 32 Tektronix control characters
to "~X~" where X is the ASCII character corresponding to that control
character.
This way I don't lose any of the Tektronix 405x text formatting in the
transfer.
I was using ExtraPutty on the laptop to capture the program text strings,
then copied the statements into Notepad++ and saved each file.
I am also working on a Tektronix 4051/52/54 compatible GPIB MicroSD flash
drive that will emulate the Tektronix 4924 tape drive - for all of us with
these computers to use - since both the tapes and drives are very
problematic after all these years.
This flash drive contains an Arduino with my code - based on the GPIB
flowcharts and info in a 4051 and 4052 GPIB manual.
You will be able to use the existing 405x program statements with @Y for
the drive GPIB address - since I don't know how to write a ROMPACK for any
of the series :)
I plan to organize the different captured tapes in directories on the flash
- and that may mean using a non-4924 GPIB secondary address for that
command. It also likely means I need to change any tape commands in each
program to use the flash drive GPIB address.
That's why I wanted to capture one of the Tektronix tapes with a menu - is
to ensure I could get those files to work on my flash drive design.
Monty McGraw
8:12 p.m.
New subject: More tapes - This time all Tektronix 405x series -SERIAL PORT
I used an GPIB to serial converter to get serial data out of my 4052.
This allowed me to get 8 bit serial data, not just the seven the
Tektronix serial port allowed for.
I used it to drive a paper tape punch/reader, just for fun. There are
some on ebay. Also, an USB to GPIB converter should work.
Might help with transferring tapes.
Bob
On 6/21/2018 7:54 PM, Randy Dawson via cctalk wrote:
Hi Pete,
Send them to Monty - my 4051 is crippled with no serial port. I currently have no way
to get data in and out of this, except via Micheal's RAMSTORE modules.
Monty, I also looked at emulating the tape drive, or the floppy disk over GPIB, that
would be great, have the PC with a NI USB dongle.
I could not figure out how to make the National Instruments dongle act like a slave, its
normally the master.
Randy
________________________________
From: cctalk <cctalk-bounces at classiccmp.org> on behalf of Pete Lancashire via
cctalk <cctalk at classiccmp.org>
Sent: Thursday, June 21, 2018 11:06 AM
To: mmcgraw74 at gmail.com; General
Subject: Re: More tapes - This time all Tektronix 405x series
a few months ago i had about 20 4051/4052 tapes. if i still do i can send
them to you
On Wed, Jun 20, 2018 at 5:53 AM Monty McGraw via cctalk <
cctalk at classiccmp.org> wrote:
> I was successfull at capturing all the files from a 4051 Graphics T1 tape
> last weekend.
>
> Here is the link to a couple of photos of the process:
>
> Capturing Tektronix 4051 Graphics T1 tape files to laptop
> <https://drive.google.com/open?id=18hROXB28PD9Z_GYDNNSXGPK4Pv7GQD8w>
>
> First I replaced the disintegrated drive belt with one from a NOS 3M DC6250
> cartridge.
>
> I used my 4051 to PC serial transfer program on my recently repaired and
> upgraded 4054A.
>
> I set the comm speed of the 4054 serial interface to the maximum 9600 baud,
> but as it is 7-bit, my program changes all 32 Tektronix control characters
> to "~X~" where X is the ASCII character corresponding to that control
> character.
>
> This way I don't lose any of the Tektronix 405x text formatting in the
> transfer.
>
> I was using ExtraPutty on the laptop to capture the program text strings,
> then copied the statements into Notepad++ and saved each file.
>
> I am also working on a Tektronix 4051/52/54 compatible GPIB MicroSD flash
> drive that will emulate the Tektronix 4924 tape drive - for all of us with
> these computers to use - since both the tapes and drives are very
> problematic after all these years.
>
> This flash drive contains an Arduino with my code - based on the GPIB
> flowcharts and info in a 4051 and 4052 GPIB manual.
>
> You will be able to use the existing 405x program statements with @Y for
> the drive GPIB address - since I don't know how to write a ROMPACK for any
> of the series :)
>
> I plan to organize the different captured tapes in directories on the flash
> - and that may mean using a non-4924 GPIB secondary address for that
> command. It also likely means I need to change any tape commands in each
> program to use the flash drive GPIB address.
>
> That's why I wanted to capture one of the Tektronix tapes with a menu - is
> to ensure I could get those files to work on my flash drive design.
>
> Monty McGraw
>
>
--
Vintage computers and electronics
www.dvq.com
www.tekmuseum.com
www.decmuseum.org
22 Jun
22 Jun
5:10 a.m.
Randy,
I had the same issue. I have an older NI GPIB to serial adapter, and since
the Tektronix protocol was so customized - I couldn't get it to recover the
data either.
Right now I'm experimenting with a different PC serial program - which is
designed to transfer data from embedded systems like Arduino.
I would like to capture the data including the control characters without
having to convert them.
This effort is helping me get a deeper understanding of what is going on,
so I can get my GPIB flash drive designed properly.
Monty
On Thu, Jun 21, 2018 at 9:54 PM, Randy Dawson via cctalk <
cctalk at classiccmp.org> wrote:
Hi Pete,
Send them to Monty - my 4051 is crippled with no serial port. I
currently have no way to get data in and out of this, except via Micheal's
RAMSTORE modules.
Monty, I also looked at emulating the tape drive, or the floppy disk over
GPIB, that would be great, have the PC with a NI USB dongle.
I could not figure out how to make the National Instruments dongle act
like a slave, its normally the master.
Randy
________________________________
From: cctalk <cctalk-bounces at classiccmp.org> on behalf of Pete Lancashire
via cctalk <cctalk at classiccmp.org>
Sent: Thursday, June 21, 2018 11:06 AM
To: mmcgraw74 at gmail.com; General
Subject: Re: More tapes - This time all Tektronix 405x series
a few months ago i had about 20 4051/4052 tapes. if i still do i can send
them to you
On Wed, Jun 20, 2018 at 5:53 AM Monty McGraw via cctalk <
cctalk at classiccmp.org> wrote:
I was successfull at capturing all the files from
a 4051 Graphics T1 tape
last weekend.
Here is the link to a couple of photos of the process:
Capturing Tektronix 4051 Graphics T1 tape files to laptop
<https://drive.google.com/open?id=18hROXB28PD9Z_GYDNNSXGPK4Pv7GQD8w>
First I replaced the disintegrated drive belt with one from a NOS 3M
DC6250
cartridge.
I used my 4051 to PC serial transfer program on my recently repaired and
upgraded 4054A.
I set the comm speed of the 4054 serial interface to the maximum 9600
baud,
but as it is 7-bit, my program changes all 32
Tektronix control
characters
to "~X~" where X is the ASCII character
corresponding to that control
character.
This way I don't lose any of the Tektronix 405x text formatting in the
transfer.
I was using ExtraPutty on the laptop to capture the program text strings,
then copied the statements into Notepad++ and saved each file.
I am also working on a Tektronix 4051/52/54 compatible GPIB MicroSD flash
drive that will emulate the Tektronix 4924 tape drive - for all of us
with
these computers to use - since both the tapes and
drives are very
problematic after all these years.
This flash drive contains an Arduino with my code - based on the GPIB
flowcharts and info in a 4051 and 4052 GPIB manual.
You will be able to use the existing 405x program statements with @Y for
the drive GPIB address - since I don't know how to write a ROMPACK for
any
of the series :)
I plan to organize the different captured tapes in directories on the
flash
- and that may mean using a non-4924 GPIB
secondary address for that
command. It also likely means I need to change any tape commands in each
program to use the flash drive GPIB address.
That's why I wanted to capture one of the Tektronix tapes with a menu -
is
to ensure I could get those files to work on my
flash drive design.
Monty McGraw
2142
days inactive
2144
days old
4 comments
4 participants
participants (4)
-
bobalan＠sbcglobal.net -
mmcgraw74＠gmail.com -
pete＠petelancashire.com -
rdawson16＠hotmail.com