Part Details | VARIABLE ATTENUATOR
5985-00-259-3939 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: 1C12558, SCB72791, 5985-00-259-3939, 00-259-3939, 5985002593939, 002593939
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 59 | JAN 01, 1963 | 00-259-3939 | 00838 ( ATTENUATOR, VARIABLE ) |
REFERENCE DRAWINGS & PICTURES
COAXIAL TYPE
Cross Reference | NSN 5985-00-259-3939
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 1C12558 | 15196 | A R F PRODUCTS INC |
| SCB72791 | 80063 | US ARMY COMMUNICATIONS &ELECTRONICS MATERIEL READINESS |
Technical Data | NSN 5985-00-259-3939
| Characteristic | Specifications |
|---|---|
| APPLICATION DESIGN | TRANSMISSION LINE |
| FREQUENCY RANGE | 1.000 MEGAHERTZ MINIMUM AND 20.000 MEGAHERTZ MAXIMUM |
| IMPEDANCE RATING IN OHMS | 50.0 INPUT-OUTPUT |
| POWER RATING | 1.0 WATTS AVERAGE |
| OVERALL ATTENUATION RANGE IN DECIBELS | P0.0/P100.0 |
| OVERALL ATTENUATION ACCURACY IN DECIBELS | M2.00/P2.00 |
| ATTENUATION VARIATION METHOD | STEPPED |
| STEP POSITION QUANTITY | 5 |
| ATTENUATION PER STEP IN DECIBELS | 20.0 |
| BODY STYLE | COAXIAL TYPE |
| OVERALL LENGTH | 3.500 INCHES NOMINAL |
| OVERALL HEIGHT | 2.500 INCHES NOMINAL |
| OVERALL WIDTH | 2.500 INCHES NOMINAL |
| ADJUSTMENT DEVICE TYPE AND QUANTITY | 2 SLOTTED SCREW |
| TERMINAL TYPE AND QUANTITY | 3 TAB, SOLDER LUG |
| MOUNTING FACILITY TYPE AND QUANTITY | 2 BRACKET AND 4 UNTHREADED HOLE |
| MOUNTING FACILITY SCREW THREAD SERIES DESIGNATOR | UNC |
| MOUNTING FACILITY NOMINAL SCREW THREAD DIAMETER | 0.138 INCHES |
| MOUNTING THREAD QUANTITY | 32 PER INCH |
| MOUNTING FACILITY PATTERN | FOUR POSITION RECTANGULAR |
| CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH | 2.000 INCHES NOMINAL |
| CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO HEIGHT | 2.000 INCHES NOMINAL |
| SPECIAL FEATURES | INCL SWITCH |
| SCALE LINEARITY | LINEAR |
| SCALE DIVISION QUANTITY | 5 |
| OPERATING TEMP RANGE | -4.0 TO +125.0 DEG FAHRENHEIT |
| BODY MATERIAL | ALUMINUM |
| PRECIOUS MATERIAL | SILVER |