I'm working on bringing a Pertec 6860-9-75 9-track tape drive back to life. I'm looking for schematics, specifically for the server power supply D board. Bitsavers has documentation for 6x60 transports, but it's for a later generation than this one. They also have the documentation for 6660, which is much closer to this one and uses the same server power supply board, but it's missing the schematics other than the read/write boards. Anyone have one of those around somewhere?
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