PDP 11 - how to lock heads in a rx01 and rx02 - seeking advice

[Jerry Weiss]

See page 2-8 for a view of the packing configuration.

http://www.pdp8online.com/pdp8cgi/query_docs/tifftopdf.pl/pdp8docs/ek-0rx02-tm-001.pdf <http://www.pdp8online.com/pdp8cgi/query_docs/tifftopdf.pl/pdp8docs/ek-0rx02-tm-001.pdf>

Jerry Weiss
jsw at ieee.org



> On Jul 10, 2015, at 10:57 AM, Jerry Weiss <jsw at ieee.org> wrote:
> 
> Make sure the doors are shut.   I used to tape them. Remove any floppies you care about.
> 
> Some of the non-DEC 8” drives used to come with a cardboard blank.  
> But these were double sided disks and the blank was meant (I believe)
> to prevent the heads from banging against each other.
> 
> 
> Jerry Weiss
> jsw at ieee.org
> 
> 
> 
>> On Jul 10, 2015, at 10:40 AM, Paul Koning <paulkoning at comcast.net> wrote:
>> 
>> 
>>> On Jul 10, 2015, at 10:18 AM, Noel Chiappa <jnc at mercury.lcs.mit.edu> wrote:
>>> 
>>>> From: devin davison
>>> 
>>>> I was told to lock the heads in the rx01 and rx02 drives.
>>> 
>>> Err, I think we told you to lock the heads the RL0x's, not RX0x's; the former
>>> use large rigid packs, the latter are 8" floppy drives. AFAIK, there is no
>>> need to lock RX heads when moving them - there is nothing in the manual about
>>> RX drives being shipped from DEC with the heads locks.
>> 
>> That seems logical; stepper motors are to some extent self-locking.
>> 
>> 	paul
>> 
>> 
>