TU-58

[rod]

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