Sigh. Bringing up a PDP-8/M

<boards? My strategy was this: < 1.) Debug the chassis. < 2.) Install components from a working 8/M. < 3.) Replace componets from the working 8/M with questionable < components. < 3a.) If the replaced component failed: Fix it. < 3b.) If the replaced component worked: Move to the next one. This is a good plan. Pay attention to debug the chassis though as there can be latent bugs like bad connectors. <BTW, the "best" tool I've found for working on PDP-8s is the Radio Shack <scope probe. Its more than fast enough to look at the signals. I suspect a <Logic Dart would be better but I've not had enough funds for that toy yet. For the PDP-8 any cheap logic probe will do if it can see 50nS pulses. or you can make one with 7404, a oneshot (7412x) and three leds. the oneshot is to strecth the fast ones to light a led. Allison