TB 9-6625-149-50
(4) While maintaining a 4-major division vertical display, vary autotransformer
(A3) from 105 to 125 volts and then back to 115 volts. Ac calibrator indication will remain
between 34.29 and 36.41 volts.
b. Adjustments
(1) Adjust output of ac calibrator for 35.35 volts rms.
(2) Adjust GAIN ADJ R570 (fig. 2, not shown) for 4 major divisions of vertical
deflection on TI crt. (R)
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