OK, here's another one regarding the Rev6 construction manual:
In the board picture on page 4 (and text on page 24), the cathode connection shows the pins ordered (starting from pin 1 on the connector) 0, 1, 2, 3, ...9. In the tube schematic shown on page 28, the order on the connector is shown as 0, 9, 8, 7, ...1. (The connector is shown reversed on page 28, with pin 1 to the right, to make the layout cleaner). The board schematic is of no help to resolve the conflict, since the pins get remapped in software.
Then on page 29, the partial schematic and text are obviously from an earlier version board. And the suggest resistor values seem much too low, I'd expect them to be in the 220-330K range for an INS-1 driven with 170-180 V.