All 130LC manuals that I have ever seen talk a lot about using
the S-30 to do a full calibration on the 130. No additional
inductance standardizer is considered necessary, by Tektronix, at least.
Hi Stan and Miroslav
I have a pdf of the 130LC manual which gives instructions on how to make the
"inductance standardizer". This is used to calibrate the 300uH range of the
S-30 transfer standard. It says that calibration of the 300uH range cannot
be easily done, because you can't transfer a 300uH standard from a bridge
(due to stray capacitance effects upsetting the bridge).
So the inductance standardizer is used; this has a fixed inductor in the
range 100-400uH, a capacitor (4310pF +/-2%), a resistor (7.5 ohms +/- 2%)
and a switch. It is used with a S-30 and a *known* standard 130 to set up
the tuning slug in the S-30.
The manual seems to be post '62.
If you'd like a copy of the pdf (3.9MB), mail me off-list.
Craig
