Some amount of DG goodness

I decided to raid the front panel of my S/200 to get a switch cover and a switch for the S/130; what can I say - I got antsy to see if the S/130 worked ;) When taking the S/200 front panel apart I found it really wasn't in great shape as it had appeared to be from the outside. A large number of the incandescents had broken off and were sitting loose and one of the switch covers was broken so someday I'll return to the S/200 but the S/130 restoration was completed as a result. Pictures (completely out of order) are at https://www.flickr.com/photos/131070638 at N02 but the first picture shows the cpu up. Once or twice, running the microcoded self-test produced a "Rom Error", but almost always it produces the desired result and loops on that test (checks microcode checksum, ability to execute and step microcode, a few CPU instructions & paths, and tests the lowest 16Kw of ram). Raising switch 0 halts cpu at microcode address 2 just as it should. I also noticed that on rare occasion, hitting "examine" on AC1 produces no result - but other than that I can store and read AC0-3 as well as several different sections of memory. Next step is to locate a 4045 board and see if I can get a console hooked up. After that, I'll need some way to get diagnostics into the machine. To that end, I could try restoring a HD, 8" diskette, paper tape, or dual cassette drive - but I'm wondering if there is any previous art for entering a front panel ditty and stuffing diags down the console port (from a PC)? Yes, google is my next stop ;) Thanks to several listmembers and especially Bruce for pointers and advice, as documentation is scarce and not organized the way my brain works. Best, J