ERRATA
FOR
INSTRUCTION MANUAL
MODELS 452
&
852
DUAL HIILO FILTERS
DATED 10/86
Make the following changes to the manual:
Page 1-3, Paragraph 1-4, following "FI'equency Range" table:
3/2/88
1 of 1
Add "NOTE:
Specifications apply for cutoff frequency dial settings from
0.10 to 10.1010".
Page 1-4, PaI'agraph 1-4, Maximum Stopband Attenuation:
Replace "90 dB" with:
"80 dB minimum (fin
S.
400 kHz, 1K and 10K multiplier ranges)
70 dB minimum (fin
S.
300 kHz, 100 and 10 multiplier I'anges)".
Page 1-6, Paragraph 1-5, following "Frequency Range" table (bottom of page):
Add "NOTE:
Specifications apply for cutoff frequency dial settings from
0.10 to 10.1010".
Page 1-7, PaI'agI'aph 1-5, Maximum Stopband Attenuation:
Replace "90 dB" with:
"SO dB minimum (fin
S.
400 kHz, lK and 10K multiplier ranges)
70 dB minimum (fin
S.
300 kHz, 100 and 10 multiplier ranges)".
Page 4-12, Table 4.5, Specification:
Replace "90 dB" with "SO dB" (two locations).
Page 4-15, Table 4.5, Specification:
Replace "90 dB" with "SO dB" (two locations).
Page 5-5, Parts List 004-0930:
Change "R4" to "R4, R3S*".
Change "RI2, R20, R25, R32, R38*" to "R12, R20, R25, R32."
Drawing 03-004-0930:
Change R38 ft'om 1K to 4.7K.
Summary of Contents for 452
Page 16: ......
