NSN 5985-00-978-0944
Part Details | VARIABLE ATTENUATOR
5985-00-978-0944 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: G356241, D470, CVA18207, CVA18207, CVA-18207, 5985-00-978-0944, 00-978-0944, 5985009780944, 009780944
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 59 | JAN 01, 1962 | 00-978-0944 | 00838 ( ATTENUATOR, VARIABLE ) |
REFERENCE DRAWINGS & PICTURES
COAXIAL TYPE
Cross Reference | NSN 5985-00-978-0944
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| G356241 | 64959 | AMERICAN TELEPHONE AND TELEGRAPH CO |
| D470 | 12083 | CODECO CORP OF VERMONT |
| CVA18207 | 28057 | SHALLCO, INC. |
| CVA-18207 | 54294 | SHALLCROSS INC |
Technical Data | NSN 5985-00-978-0944
| Characteristic | Specifications |
|---|---|
| APPLICATION DESIGN | TRANSMISSION LINE |
| FREQUENCY RANGE | 0.000 HERTZ MINIMUM AND 90.000 MEGAHERTZ MAXIMUM |
| IMPEDANCE RATING IN OHMS | 75.0 INPUT-OUTPUT |
| INSERTION LOSS AT MINIMUM ATTENUATION IN MAXIMUM DECIBELS | 0.2 |
| ATTENUATION VARIATION METHOD | STEPPED |
| BODY STYLE | COAXIAL TYPE |
| OVERALL LENGTH | 11.500 INCHES NOMINAL |
| OVERALL HEIGHT | 3.380 INCHES NOMINAL |
| OVERALL WIDTH | 4.560 INCHES NOMINAL |
| MOUNTING FACILITY TYPE AND QUANTITY | 4 UNTHREADED HOLE |
| UNTHREADED MOUNTING HOLE DIAMETER | 0.201 INCHES MINIMUM AND 0.207 INCHES MAXIMUM |