Okay, I have the same drive(s-this weekend). The switch allows you to select
one of three computers the drive will be used on:
Straight 8
PDP-8/S
PDP-8I
the switch controls bus lines, (and selectors diode or resistor) logic for:
pcl - straight 8
init - for 8i
certain bus signals for 8/8s/8i, and other things I am finding in the
schematic (mentioned changes between 8,8I,8/s). I haven't read the whole
book yet as I have been inundated with documentation again... and my pick up
this weekend will make my current document set look like a pamphlet. Do you
have schematics? Contact me off the list.
P.S. They did not put this switch on early model DF32s as only the 8,8/S was
around. I am getting a newer drive that has the 8I switch (more changes).
Does anyone know if digital fixed the head crashing problem with the DF32-D,
or -F?
Thanks
john
-----Original Message-----
From: Ethan Dicks <ethan_dicks_at_yahoo.com>
To: Discussion re-collecting of classic computers
<classiccmp_at_u.washington.edu>
Date: Friday, November 05, 1999 9:45 AM
Subject: Re: Finally got a "straight" DF32 yesterday
>--- John B <dylanb_at_sympatico.ca> wrote:
>> >> >What's the -8/I switch?
>
>> I believe I am VERY lucky to have a wife and children that don't mind
>> co-existing with such hardware (it is in its own room)!
>
>I ended up buying a farm with a 30'x50' quonset hut, but for more reasons
than
>just the collection. If all goes well, I'll be breaking ground for a
purpose-
>built edifice for the collection in the spring.
>
>> I can answer your question when you tell me:
>>
>> What kind of modules are in your DF32 - purple M series with "G", or read
>> "R" series with "G".
>
>No M. R. On all drives, masters and slaves.
>
>-ethan
>
>=====
>Infinet has been sold. The domain is going away in February.
>Please send all replies to
>
> erd_at_iname.com
>__________________________________________________
>Do You Yahoo!?
>Bid and sell for free at http://auctions.yahoo.com
>
Received on Fri Nov 05 1999 - 09:02:53 GMT