I'm not sure how helpful this is, but the government calibration
manual
for the TU-7 / 1M1 / 067-0521-00 / 067-0521-01 is available online:
That can be some handy information. But be forewarned about U.S.
Army calibration T.O.s (Technical Orders) which the USAF also uses.
I have seen some that leave a lot to be desired. For instance, the
Army calibration guys (only one of two calibration resources on
Okinawa; the other was at Kadena AFB) were contracted to come to the
Hanza USNSGA site for semi-annual calibrations. I noticed that a
Hewlett-Packard 606A HF signal generator that I'd sent out there came
back with one of the bands loaded with harmonics and a non-sinusoidal
output. I showed them the generator and told that that this was a
problem that was taken care of with calibration. Then I saw the T.O.
that they were REQUIRED to use (against regulations to use HP's
service manual for calibration!) and it never even have them adjust
the oscillator frequency or the output amplifier tank -- that's half
of the calibration of a 606A/B! Since I was in Navy calibration
(couldn't legally do the stuff at the time at our site because of
limited standards) I patiently showed the Army techs the manual and
how to calibrate a 606A's RF section. They told me that it was
against regulations for them to use anything but the Army T.O. -- and
then asked me for a copy of the HP 606A calibration procedure so that
it could be done right!
Just saying that you need to be wary that you might not get a
complete procedure with an Army/Air Force T.O. The one noted in this
series of posts appears to be a retyped copy of the Tek procedure.
By the way, the Navy used the manufacturer's procedure first and then
a Navy procedure if the manufacturer's manual wasn't available. The
Navy Calibration stuff at Pomona is available if you have the right
government connections. Danged shame that stuff like that that
should be public domain is not available to the public.
Dean
