4 Dec
2015
4 Dec
'15
3:41 a.m.
Hello All
Well I managed to find some suitable rubber tubing and
glued it in place of the nasty black mess.
So I put everything back and turned on. Lo and Behold LED on the board
flashed once and stayed on.
I had been told (Tony D I think) thats what its supposed to do.
Anybody know whats the quickest way to test a TU-58?
Rod
4 Dec
4 Dec
6:01 a.m.
On December 4, 2015 5:41:52 AM CST, Rod Smallwood <rodsmallwood52 at btinternet.com>
wrote:
Hello All
Well I managed to find some suitable rubber tubing and
glued it in place of the nasty black mess.
So I put everything back and turned on. Lo and Behold LED on the board
flashed once and stayed on.
I had been told (Tony D I think) thats what its supposed to do.
Anybody know whats the quickest way to test a TU-58?
Put a cartridge in and if the belt in the cartridge breaks, it's working ;-)
Chris
--
Chris Elmquist
6:40 a.m.
On Fri, Dec 04, 2015 at 08:01:05AM -0600, Chris Elmquist wrote:
On December 4, 2015 5:41:52 AM CST, Rod Smallwood <rodsmallwood52 at
btinternet.com> wrote:
:-)
I seem to recall that the "roller" in the cartridge also turns
to goo, might want to check that out also.
/P
Hello All
Well I managed to find some suitable rubber tubing and
glued it in place of the nasty black mess.
So I put everything back and turned on. Lo and Behold LED on the board
flashed once and stayed on.
I had been told (Tony D I think) thats what its supposed to do.
Anybody know whats the quickest way to test a TU-58?
Put a cartridge in and if the belt in the cartridge breaks, it's working ;-)
7:28 a.m.
On 12/4/15 6:40 AM, Pontus Pihlgren wrote:
I seem to recall that the "roller" in the cartridge also turns
to goo, might want to check that out also.
Nope, it's hard plastic. They have been known to have crescents worn
into them if the tape jams and it can't spin against the pinch roller
though.
8:11 a.m.
Yes thats right nothing soft inside the case.
On 04/12/2015 15:28, Al Kossow wrote:
On 12/4/15 6:40 AM, Pontus Pihlgren wrote:
I seem to recall that the "roller" in the cartridge also turns
to goo, might want to check that out also.
Nope, it's hard plastic. They have been known to have crescents worn
into them if the tape jams and it can't spin against the pinch roller
though.
6 Dec
6 Dec
9:27 a.m.
On Friday, December 4th, 2015 at 11:41 A.M. GMT (6:41
A.M. EST) Rod
Smallwood wrote:
Hello All
Well I managed to find some suitable rubber tubing and
glued it in place of the nasty black mess.
So I put everything back and turned on. Lo and Behold LED on the board
flashed once and stayed on.
I had been told (Tony D I think) thats what its supposed to do.
Anybody know whats the quickest way to test a TU-58?
As expected, my approach will always be based on using RT-11.
There are DD(X).SYS device drivers available up to V05.04G
of RT-11. If you are able to boot one of those versions and
you manage to connect the null-modem cable between the
DL and the TU-58, you should be able to read and write
to the TU-58 device.
If you don't have a cabinet kit, then use whatever is needed
at both ends. If your cable is 10-pin at each end, then
disconnect the 10-pin cable to the cabinet kit for that DL
port and connect the cable directly to the DLV11-J.
Note that under RT11XM, I believe
it is necessary to first LOAD the DDX device handler as in:
LOAD DD:
In addition, even before that, you must match the CSR and
VECTOR with the DL port you are using. On a Qbus
system with a DLV11-J, usually the first DL port is:
SET DD CSR=176500
SET DD VECTOR=300
On a PDP-11/23, there is an extra port at:
SET DD CSR=177570
SET DD VECTOR=70
if I remember correctly.
With a Unibus system, I am not sure, but the values will be
similar.
Let us know what happens. Don't forget that the TU58 is
a very slow serial tape device, not a disk drive even though
the RT-11 software thinks that there is a small disk drive
being used.
Jerome Fine
7 Dec
7 Dec
12:47 a.m.
its working ok now. Its hung off of an old notebook on a serial port.
NB has dos 6.2 and some drivers I found on spare time gizmos site
I discovered by chance that the rubber compression sleeve from an NType
RF connector
is exactly the right size and when cut in half fixes both drive wheels.
I need to go up in the loft and see if I have any more carts.
Rod
On 06/12/2015 17:27, Jerome H. Fine wrote:
On Friday,
December 4th, 2015 at 11:41 A.M. GMT (6:41 A.M. EST) Rod
Smallwood wrote:
Hello All
Well I managed to find some suitable rubber tubing and
glued it in place of the nasty black mess.
So I put everything back and turned on. Lo and Behold LED on the
board flashed once and stayed on.
I had been told (Tony D I think) thats what its supposed to do.
Anybody know whats the quickest way to test a TU-58?
As expected, my approach will always be based on using RT-11.
There are DD(X).SYS device drivers available up to V05.04G
of RT-11. If you are able to boot one of those versions and
you manage to connect the null-modem cable between the
DL and the TU-58, you should be able to read and write
to the TU-58 device.
If you don't have a cabinet kit, then use whatever is needed
at both ends. If your cable is 10-pin at each end, then
disconnect the 10-pin cable to the cabinet kit for that DL
port and connect the cable directly to the DLV11-J.
Note that under RT11XM, I believe
it is necessary to first LOAD the DDX device handler as in:
LOAD DD:
In addition, even before that, you must match the CSR and
VECTOR with the DL port you are using. On a Qbus
system with a DLV11-J, usually the first DL port is:
SET DD CSR=176500
SET DD VECTOR=300
On a PDP-11/23, there is an extra port at:
SET DD CSR=177570
SET DD VECTOR=70
if I remember correctly.
With a Unibus system, I am not sure, but the values will be
similar.
Let us know what happens. Don't forget that the TU58 is
a very slow serial tape device, not a disk drive even though
the RT-11 software thinks that there is a small disk drive
being used.
Jerome Fine
2:51 a.m.
OK as you surmised its destined for 'eleven_heaven' my row of q-bus
pdp11's 11/23 11/53 11/73.
I I also have two 11/94's (Hybrid bus) waiting on the day KDJ11-E's
don't cost $2000.
DLV-11J I have or what ever the four port one is called.
Plus backplate with four 25way D connectors and split ribbon cable to
four plugs into the DLV.
As to the speed , well, I had one at DecPark called Sylvester because
sat on my desk and purred.
Rod
On 07/12/15 08:47, rod wrote:
its working ok now. Its hung off of an old notebook on
a serial port.
NB has dos 6.2 and some drivers I found on spare time gizmos site
I discovered by chance that the rubber compression sleeve from an
NType RF connector
is exactly the right size and when cut in half fixes both drive wheels.
I need to go up in the loft and see if I have any more carts.
Rod
On 06/12/2015 17:27, Jerome H. Fine wrote:
On Friday,
December 4th, 2015 at 11:41 A.M. GMT (6:41 A.M. EST) Rod
Smallwood wrote:
Hello All
Well I managed to find some suitable rubber tubing
and glued it in place of the nasty black mess.
So I put everything back and turned on. Lo and Behold LED on the
board flashed once and stayed on.
I had been told (Tony D I think) thats what its supposed to do.
Anybody know whats the quickest way to test a TU-58?
As expected, my approach will always be based on using RT-11.
There are DD(X).SYS device drivers available up to V05.04G
of RT-11. If you are able to boot one of those versions and
you manage to connect the null-modem cable between the
DL and the TU-58, you should be able to read and write
to the TU-58 device.
If you don't have a cabinet kit, then use whatever is needed
at both ends. If your cable is 10-pin at each end, then
disconnect the 10-pin cable to the cabinet kit for that DL
port and connect the cable directly to the DLV11-J.
Note that under RT11XM, I believe
it is necessary to first LOAD the DDX device handler as in:
LOAD DD:
In addition, even before that, you must match the CSR and
VECTOR with the DL port you are using. On a Qbus
system with a DLV11-J, usually the first DL port is:
SET DD CSR=176500
SET DD VECTOR=300
On a PDP-11/23, there is an extra port at:
SET DD CSR=177570
SET DD VECTOR=70
if I remember correctly.
With a Unibus system, I am not sure, but the values will be
similar.
Let us know what happens. Don't forget that the TU58 is
a very slow serial tape device, not a disk drive even though
the RT-11 software thinks that there is a small disk drive
being used.
Jerome Fine 
1:24 a.m.
On 06/12/2015 17:27, Jerome H. Fine wrote:
In addition, even before that, you must match the CSR
and
VECTOR with the DL port you are using. On a Qbus
system with a DLV11-J, usually the first DL port is:
SET DD CSR=176500
SET DD VECTOR=300
On a PDP-11/23, there is an extra port at:
SET DD CSR=177570
SET DD VECTOR=70
if I remember correctly.
I don't think so :-) 177570 is the switch/display register, which only
exists on some Unibus machines. It definitely doesn't exist on an
11/23. Maybe you're thinking of the console CSR at 177560 with vector 60?
Unibus addresses are the same as QBus, at least for I/O devices (things
like memory management are done differently).
--
Pete
Pete Turnbull
1:47 a.m.
On 2015-12-07 10:24, Pete Turnbull wrote:
On 06/12/2015 17:27, Jerome H. Fine wrote:
The display register also exist on some Qbus machines, such as the
11/83, which have a two digit 7 segment display.
In addition, even before that, you must match the
CSR and
VECTOR with the DL port you are using. On a Qbus
system with a DLV11-J, usually the first DL port is:
SET DD CSR=176500
SET DD VECTOR=300
On a PDP-11/23, there is an extra port at:
SET DD CSR=177570
SET DD VECTOR=70
if I remember correctly.
I don't think so :-) 177570 is the switch/display register, which only
exists on some Unibus machines. It definitely doesn't exist on an
11/23. Maybe you're thinking of the console CSR at 177560 with vector 60? Unibus addresses are the same as QBus, at least for
I/O devices (things
like memory management are done differently).
Uh. I/O addresses as such are just addresses. Devices might be similar
between Unibus and Qbus. Depends on the device. There are many Qbus
devices that are similar/compatible with their Unibus counterparts, but
not always. DMA devices are not, for the obvious reason. However, they
can still be "mostly compatible".
The memory management is compatible, so no, memory management is not
done differently.
All that said, yeah, the second serial port is most likely not at
177570. But that can be checked in the manuals...
Johnny
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt at softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
3084
days inactive
3087
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9 comments
7 participants
participants (7)
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aek＠bitsavers.org -
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