Part Details | VARIABLE ATTENUATOR
5985-00-256-6391 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: B1182007, B118200-7, T500L, 5985-00-256-6391, 00-256-6391, 5985002566391, 002566391
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 59 | JAN 01, 1963 | 00-256-6391 | 00838 ( ATTENUATOR, VARIABLE ) |
REFERENCE DRAWINGS & PICTURES
CYLINDRICAL W/SIDE TERMINALS
BRIDGED "T"
Cross Reference | NSN 5985-00-256-6391
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| B118200-7 | 90201 | MALLORY SONALERT PRODUCTS INC. |
| T500L | 37942 | YOSEMITE INVESTMENT INCDBA NORTH AMERICAN CAPACITOR CO |
Technical Data | NSN 5985-00-256-6391
| Characteristic | Specifications |
|---|---|
| APPLICATION DESIGN | AUDIO |
| SCHEMATIC DIAGRAM DESIGNATOR | BRIDGED "T" |
| IMPEDANCE RATING IN OHMS | 500.0 INPUT-OUTPUT |
| POWER RATING | 4.0 WATTS AVERAGE |
| OVERALL ATTENUATION RANGE IN DECIBELS | P0.0/P38.0 |
| OVERALL ATTENUATION ACCURACY IN DECIBELS | M1.90/P1.90 |
| ATTENUATION VARIATION METHOD | CONTINUOUS |
| BODY STYLE | CYLINDRICAL W/SIDE TERMINALS |
| OVERALL LENGTH | 2.375 INCHES NOMINAL |
| OVERALL WIDTH | 1.951 INCHES NOMINAL |
| BODY DIAMETER | 1.625 INCHES NOMINAL |
| BUSHING LENGTH | 0.406 INCHES NOMINAL |
| BODY LENGTH | 1.875 INCHES NOMINAL |
| ADJUSTMENT DEVICE TYPE AND QUANTITY | 1 SHAFT |
| SHAFT TYPE | ROUND |
| SHAFT DIAMETER | 0.250 INCHES NOMINAL |
| SHAFT LENGTH | 2.000 INCHES NOMINAL |
| TERMINAL TYPE AND QUANTITY | 6 TAB, SOLDER LUG |
| MOUNTING FACILITY TYPE AND QUANTITY | 1 THREADED BUSHING |
| MOUNTING FACILITY SCREW THREAD SERIES DESIGNATOR | UNEF |
| MOUNTING FACILITY NOMINAL SCREW THREAD DIAMETER | 0.375 INCHES |
| MOUNTING THREAD QUANTITY | 32 PER INCH |