Looking for PDP8/A RL01 boot proms.

Ethan Dicks ethan.dicks at gmail.com
Thu Jul 22 13:13:02 CDT 2010


On 7/22/10, Tony Duell <ard at p850ug1.demon.co.uk> wrote:
>> >> You'll need to burn the images into 82s126 chips...
>>
>> Looks like the 74S387 is another cross.  Jameco has them for $4 each.
>
> Most of these bipolar PROMs had many 'crosses', but for reading only. The
> programming methods are manufacturer-specific. Once programmed, the chips
> behave identically, so the PDP8/a (or watherver) doesn't care.

All true.  I was focusing on what could be plugged into a KM8A.  I
haven't personally checked my old programmers to see which variants
they can burn, but we used to blow out hundreds of 6309s, so while I'd
be confident I have the equipment to burn 6301s, I'd have to check on
the 74S387s.

-ethan



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