Vince,
I know plenty about your PDP8A and it's use in Kearney & Trecker machine
tools. I fixed these and PDP8E computers for K&T back in the 80's and
continue to do it to this day. I am running one as I write this.
If you want to talk email at riedelec at
wi.rr.com
Dave
Riedel Electronics/Telstar
phone: 262-392-3366
fax: 262-392-3971
www.predicta.com
riedelec at
wi.rr.com