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

[Jerry Weiss]

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
> 
>