rod rodsmallwood52 at btinternet.com
Mon Dec 7 04:51:42 CST 2015

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.

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
>> 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

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