Can anyone identify this 9-track drive?

[Josh Dersch]

After looking through the manuals on Bitsavers it definitely is an M4 
drive.  Still not sure precisely what model, it's not a 9914, though the 
SCSI board is definitely very similar.

Thanks for the pointers!
Josh

Pete Turnbull wrote:
> On 30/07/2008 14:37, Nico de Jong wrote:
>
>> Sorry, but I dont agree. The 34xx series do not have a plastic cover 
>> between
>> the lid and the drive mechanism. The H and W sizes dont match either, 
>> but
>> the correspond to the M4 drive
>
> I'm with Nico.  It's definitely an M4 Data drive.  I have a very 
> similar model (a 9900), and it looks almost exactly like the 
> pictures.  Mine does 1600bpi and 3200bpi; 800bpi needs an extra card 
> which I don't have (and the M4 guys told me that not all the head 
> assemblies they used are good for 800bpi/NRZ anyway).  Mine has two 
> connectors for a Pertec interface, no SCSI, and connects to a QBus 
> controller on one of my 11/73s.
>