GENERAL RADIO COMPANY 1650-B Instruction Manual page 58

Impendance bridge
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REACTANCE CHART
A l w a y s use corresponding scales
1 Hz
10 Hz
1 MHz
10 MHz
1 kHz
10 kHz
100 kHz
100 MHz
1 GHz
10 GHz
100 GHz
F R E Q U E N C Y
F I G U R E I
1 MHz
10 MHz
1000 GHz
Figure 1 is the complete chart, used for rough calcula-
tions. Figure 2, which is a single decade of Figure
1
en-
larged approximately
7
times, is used where two or three
significant figures are to be determined.
TO FlND REACTANCE
Enter the charts vertically from the bottom (frequency)
and along the lines slanting upward to the left (capaci-
tance) or to the right (inductance). Corresponding scales
(red or black) must be used throughout.
Project hori-
zontally to the left from the intersection and read reac-
tance.
TO FIND RESONANT FREQUENCY
Enter the slanting lines for the given inductance and
capacitance.
Project downward and read resonant fre-
quency from the bottom scale. Corresponding scales (red
or black) must be used throughout.
APPENDIX 6

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