PDP-8/e Panel Differences

[Rod Smallwood]

Yes most helpful Vince.

             The multitude of variants did rarther surprise me.
As you say the switch change does have to be catered for. (its now a C 
or a D)
I have had one very good scan of a B panel in from a prospective client 
with yet another variation.
The title header for the EMA is in its own box and not attached to the 
first memoy address header

I now have a list of possible variations.
Its not quite the same as  what I had before.

A is the current shipping version


    A     No dividing lines between lamp groups
             Position 1 and 6  on select switch vertical

     B      Dividing lines between lamp groups
             Position 1 and 6  on select switch vertical

     C    No dividing lines between lamp groups
             Position 1 and 6  on select switch angled

     D     Dividing lines between lamp groups
             Position 1 and 6  on select switch angled


What I need to do is work up a portfolio of photos with an original on 
one side an my replica on the other.

What is annoying is if I had travelled back to 1978 I could have walked 
into the production control office in Parker St and
pulled out the file that would have told me the whole  8/e panel history.


Regards

Rod





On 12/06/2015 13:00, Vincent Slyngstad wrote:
> From: Rod Smallwood: Friday, June 12, 2015 1:51 AM
>>             The current debate has produced a growing  list of 
>> differences between the front panels of just one model
>> viz and towit the PDP-8/e
>>
>> Here's my list so far
> ...
>> It would be nice to be able to  correlate the one list with the other
>> Suggestions plese gentlemen
>
> I would suggest that cataloging the history of 8/E front panels is an 
> interesting project that I wish you luck with, but it needn't impact 
> your production.
>
> It seems to me that if attractive and mostly historically accurate 
> panels of types "A" and "B" (to fit the different rotary switches)
> are available, the other differences are akin to the font differences 
> and replica markings you have already talked about.
>
> Certainly the result will be clearly an 8/E (or F or M), and without 
> whatever damage (or loss) caused the original front panel to be replaced.
>
>    Vince
>