Which PDP?

The 11/35 is the same CPU as the 11/40, and it did come in a 10 1/2" chassis as an option, but the CPU card set is *quite difficult* to find spares for. The standard 10 1/2" chassis isn't set up to hold a lot. I have one that is sickly and it has a CPU backplane, an early 9-slot core memory backplane, and a 4-slot core memory backplane. Even if you tried to replace the core memory backplanes with a standard unibus backplane such as the DD11-DK so you could use more modern MOS memory and add an RL02 controller or something like that, you could not plug the backplane into the power supply without reworking the power supply connectors. The old blinking lights PDP-11s are not easy to come by, and if you do find one you will likely have to pay lots of $$$$ for it. I think an 11/34 is a better choice if you want a 70s model PDP-11 to start out with. I actually have a spare 11/34A that I might be interested in selling once I fix what I believe is a power supply problem. Spares for the 11/34 are also fairly obtainable. Ashley