On Thu, Apr 15, 2021 at 10:46 AM, Martin Hodge wrote:
If you have the time, could you look to see if there is anThe lower right corner of the first page is marked:
First Printing APR 1980
Revised OCT 1985
The last change it covers is on the A20 High Voltage board, which changed
at serial number B073999.
My manual also contains a set of Manual Change Information sections,
which cover schematic, calibration and theory of operation changes
extending to serial number B095219 (dated 6-11-86).