TB 9-6625-2334-24
(4) After 24 hour stabilization, frequency difference meter indication will be <5 parts
NOTE
It may be necessary to wait 5 minutes after each voltage
change in (5) below for oscillator to stabilize.
(5) Adjust autotransformer from 105 to 125 V ac and verify frequency difference
meter indication remains <5 parts in 10-9 of indication recorded in (4) above.
(6) Adjust autotransformer to 115 V ac.
b. Adjustments. No further adjustments can be made.
Figure 1. Test instrument - top view.
9. Channel A Sensitivity
a. Performance Check
(1) Connect function generator Function Outputs Unbalanced to TI INPUT A
using 50 feedthrough termination.