"Tweetldee" wrote in message
...
I hope someone can point me to a source for the calibration procedure for
a
B&K model 707 tube tester.
I've looked through all the normal test equipment manual vendors' sites,
and
the boat anchor sites, and found sopies of the user manual and charts, but
not the cal procedure. I have the user manual and tube data manuals, so I
don't need a source for those.

took about 5 seconds to find via Google...

http://www.idalis.com/images/bk707.htm

Service adjustments begin on page 11. Schematic is included.