jhalbrecht
Experienced Member
I'm exhibiting some S-100 equipment at VCF West 2017.
Earlier today a couple nice guys taught me a bit about my Ebay pdp8m purchase that I brought along hoping for just such a meeting. Jack and ?Vince?. We got bold, pulled the cards and checked the power supply during the show Saturday morning.
Re assembled after borrowing a hex wrench from the VCM to remove the knob.
Hey it powered up, works a bit but when I set addresses to zero and pressed 'dep' the RUN light came on and stayed on, can't 'halt'. Jack said something about a 5v sense line that may be sensitive to ripple?? Any suggestions?
Earlier today a couple nice guys taught me a bit about my Ebay pdp8m purchase that I brought along hoping for just such a meeting. Jack and ?Vince?. We got bold, pulled the cards and checked the power supply during the show Saturday morning.
Re assembled after borrowing a hex wrench from the VCM to remove the knob.
Hey it powered up, works a bit but when I set addresses to zero and pressed 'dep' the RUN light came on and stayed on, can't 'halt'. Jack said something about a 5v sense line that may be sensitive to ripple?? Any suggestions?