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Model 35
170Hz to 25.6MHz, 24dB/Octave
Butterworth Tunable Active
Plug-In Filter Card
Operating Manual
Service and Warranty
Krohn-Hite Instruments are designed and manufactured in accordance with sound
engineering practices and should give long trouble-free service under normal operating
conditions. If your instrument fails to provide satisfactory service and you are unable to
locate the source of trouble, contact our Service Department at (508) 580-1660, giving all
the information available concerning the failure.
DO NOT return the instrument without our written or verbal authorization to do so. After
contacting us, we will issue a Return Authorization Number which should be referenced on
the packing slip and purchase order. In most cases, we will be able to supply you with the
information necessary to repair the instrument, avoiding any transportation problems and
costs. When it becomes necessary to return the instrument to the factory, kindly pack it
carefully and ship it to us prepaid.
All Krohn-Hite products are warranted against defective materials and workmanship. This
warranty applies for a period of one year from the date of delivery to the Original Purchaser.
Any instrument that is found within the one year warranty period not to meet these
standards, will be repaired or replaced. This warranty does not apply to electron tubes,
fuses or batteries. No other warranty is expressed or implied.
Krohn-Hite Corporation reserves the right to make design changes at any time without
incurring any obligation to incorporate these changes in instruments previously purchased.
Modifications to this instrument must not be made without the written consent of an
authorized employee of Krohn-Hite Corporation.
MODEL 35
170Hz to 25.6MHz
LOW-PASS BUTTERWORTH
PLUG-IN FILTER CARD
OPERATING AND MAINTENANCE
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PLUG-IN FILTER CARDS
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KRCHN-HITE
255 Bodwell Street, Avon
,
MA 02322-9987
Tel: (508)580-1660; Fax: (508)583-8989
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Table of Contents
Model 35
Table of Contents
1.0 GENERAL DESCRIPTION
1.1 INTRODUCTION
1.2 SPECIFICATIONS
1.2.1 Filter Ch ar ac te r is
t
ics
1.2.2 Input
1.2.3 Output
1.2.4 General
2.0 OPERATION
2.1 INTRODUCTION
2.2 TURN-ON PROCEDURE
2.3 SELF-TEST fEATURE
2.4 JUMPER SETTINGS FOR FRONT AND REAR PANEL OPERATION
2.5 FRONT PANEL CONTROLS AND DISPLAY
2.5.1 Data Keys
2.5.2 [MODE] Key
2.5.3 [TYPE]
Key
2.5.4 Channel
2
.5.5
Gain Set
2.5.6 Input Overload
2.5.7 Output Overload
2.5.g
ICE]
Clear Entry Key
2.5.9
lALL CHANNEL]
Key
2.5.10
Input Ohms (Labeled White)
1-1
1-1
1-1
1-1
1-1
1-2
1-2
2-1
2-1
2-1
2-1
2-2
2-2
2-2
2-2
2-2
2-2
2-2
2-2
2-2
2-3
2-3
2-3
3-1
3-1
3
-1
3-1
3-1
4-1
4-1
3.0 I£EE-488 STn (GPID) PROGRAMMING
3.1
INTRODUCTION
3.2
FILTER TYPE
3.3
MODE OF OPERATION "
3.4 DEVICE CLEAR
4.0 INCOMING ACCEPTANCE
4.1 INTRODUCTION
4.2
TEST EQUlPMENT REQUIRED
4.3 INITIAL SETTINGS
4.4 DC OUTPUT LEVEL CHECKS
4.5 GAIN ACCURACY CHECK
4.6 DISTORTION CHECK
4.7 SQUAREWAVE RISE AND FALL TIME CHECK
4.8 FREQUENCY CALIBRATION CHECK
4.9 WIDEBAND NOISF CH
ECK
4.10 STOPBAND ATTENUATION
C
H E C K
4-1
4-1
4-1
4-2
4-2
4-2
4-2
4-3
4-3
Model 35
Table of Contents
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