DEC RF08/RS08 module placement info

[Josh Dersch]

On Sun, Apr 25, 2021 at 1:55 PM Mattis Lind <mattislind at gmail.com> wrote:

>
>
> Den sön 25 apr. 2021 kl 22:43 skrev Josh Dersch via cctalk <
> cctalk at classiccmp.org>:
>
>> Hi all --
>>
>> In addition to the 11/45 project I'm also working on restoring an
>> RF08/RS08
>> fixed head disk/controller (in the vain hopes of one day running TSS/8 on
>> my PDP-8/I).  I have the power supply repaired and running and I'm getting
>> ready to power the logic up (the disc itself will be a project all its
>> own,
>> once it arrives).
>>
>> I'd like to double-check that all the flip chips are in their right
>> places;
>> I have no cause to think they've been shuffled around but I want to be
>> sure.  The engineering docs have detailed schematics but no placement
>> chart
>> for the modules themselves.  Given enough time with the schematics I could
>> derive this chart but I'm saving that as a last resort.  So, two
>> possibilities here:
>>
>> 1) Does anyone know of a document I've overlooked that includes module
>> placement?
>> 2) Can someone with an RF08 and/or RS08 take a few detailed pictures of
>> the
>> logic (from the handle side, of course) so I can compare?  (Note: the
>> available RF08/RS08 pictures on the 'net are of the unit currently in my
>> possession, so are not useful in this regard!)
>>
>>
> I have a RF08 / RS08 combo. It was connected to a PDP-8/L, but the cabinet
> with the DW08 was missing.
> I can take a bunch of pictures next weekend.
>
> I have a vague idea that I have a bunch of docs with the unit. Double
> ledger size or around A2. I will have a look.
>

Thanks!  That will be very helpful!


> Would be very interesting to read your story when repairing it!
>

I'm going to try to write about it, we'll see how good I am about keeping
up.  Still slowly writing things up about the 11/70 from earlier this year
and I'm behind on just about everything.  I imagine getting an actual
physical disk working is going to be an unlikely prospect, my plan is to
develop some hardware to emulate one or more RS08 drives, eventually.  But
I want to try the real thing first :).

- Josh



>
> /Mattis
>
>
>
>> Thanks!
>> - Josh
>>
>