Part Details | VARIABLE ATTENUATOR
5985-00-666-0947 A device for reducing the strength of an alternating current signal either continuously or in steps, without causing appreciable signal distortion, by maintaining substantially constant output and/or input impedance match. Continuously variable resistive devices must consist of at least two sections or one section with at least two rotating contacts. The item must have an overall attenuation rating. Includes tandem mounted variable resistors designed to function as an attenuator but whose terminals are not connected. See also RESISTOR, VAIABLE (as modified).
Alternate Parts: D851747, D51747, 5985-00-666-0947, 00-666-0947, 5985006660947, 006660947
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 59 | JAN 01, 1963 | 00-666-0947 | 00838 ( ATTENUATOR, VARIABLE ) |
REFERENCE DRAWINGS & PICTURES
WAVEGUIDE TYPE
Cross Reference | NSN 5985-00-666-0947
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| D851747 | 98738 | HERLEY CHICAGODBA STEWART WARNER ELECTRONICS |
| D51747 | 00798 | MUTRON CORP |
Technical Data | NSN 5985-00-666-0947
| Characteristic | Specifications |
|---|---|
| APPLICATION DESIGN | WAVEGUIDE |
| FREQUENCY RANGE | 925.000 MEGAHERTZ MINIMUM AND 1.225 GIGAHERTZ MAXIMUM |
| IMPEDANCE RATING IN OHMS | 51.0 INPUT-OUTPUT |
| VOLTAGE STANDING WAVE RATIO | B1.20$$B1.30 |
| POWER RATING | 3.0 KILOWATTS PEAK |
| OVERALL ATTENUATION RANGE IN DECIBELS | P0.0/P12.0 |
| ATTENUATION VARIATION METHOD | CONTINUOUS |
| BODY STYLE | WAVEGUIDE TYPE |
| OVERALL LENGTH | 12.000 INCHES NOMINAL |
| OVERALL HEIGHT | 2.250 INCHES MINIMUM AND 2.311 INCHES MAXIMUM |
| OVERALL WIDTH | 4.157 INCHES MINIMUM AND 4.219 INCHES MAXIMUM |
| ADJUSTMENT DEVICE TYPE AND QUANTITY | 1 SHAFT |
| SHAFT TYPE | ROUND |
| SHAFT DIAMETER | 0.248 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| SHAFT LENGTH | 0.719 INCHES MINIMUM AND 0.781 INCHES MAXIMUM |
| TERMINAL TYPE AND QUANTITY | 2 CONNECTOR, COAXIAL, MALE |
| COAXIAL CONNECTOR SERIES DESIGNATION | BNC |
| MOUNTING FACILITY TYPE AND QUANTITY | 2 THREADED HOLE |
| MOUNTING FACILITY SCREW THREAD SERIES DESIGNATOR | UNC |
| MOUNTING FACILITY NOMINAL SCREW THREAD DIAMETER | 0.164 INCHES |
| MOUNTING THREAD QUANTITY | 32 PER INCH |
| MOUNTING FACILITY PATTERN | TWO POSITION IN-LINE |
| DISTANCE BETWEEN MOUNTING FACILITY CENTERS | 2.688 INCHES NOMINAL |
| OPERATING TEMP RANGE | -55.0 TO +100.0 DEG CELSIUS |
| FSC APPLICATION DATA | TEST SET EXCEPT SPECIALLY DESIGNED |