Scully 280B Series - Flutter

Model 280B
Maintenance
G. Adjust range
selector knob on wave analyzer
K. Compare reading at 1 V to the reading on the
to 3V range.
third hannonic. It should be less than 0.6%.
H. Adjust
calibration on wave analyzer to 1 V
reading.
1. Reset wave analyzer to 1.5 kHz (third har- 7.21 Flutter
monic).
To check flutter, use ANSI. S4.3-1972 method .
J. Readjust selector knob on wave analyzer until Flutter shall not exceed the values listed on page
a reading
is indicated on the meter.
1-2.
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