--- John Allain <allain_at_panix.com> wrote:
> Anyone have information on this product series?
> The 'dec Lab Modules' are 45 years old so on
> topic. What I'm looking for is the pin assignment
> for the backplane (only 5 jacks at this stage)
> All I know is that -15v,+10v,+10v and -3v are
> supposed to go in (I think) but I don't know where.
I do not have docs for anything prior to 1964, but I have a question
that might help shed some light. Are the jacks on your modules color
coded? Some of the very old DEC stuff I have use color to indicate
which voltage goes to which power pin.
According to the legend on the DEC PSU (c. 1966), the color scheme _I_ am
familiar with looks like this...
Red +10VDC fixed
Black Ground
Blue -15VDC fixed
Green -15VDC variable
Orange +10VDC variable
I don't know if yours resembles this, but it's a place to start.
-ethan
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Received on Wed Apr 24 2002 - 01:16:08 BST