Part Details | VARIABLE ATTENUATOR
5985-00-202-0258 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: B2678, 2Z39478, 2Z394-78, 5985-00-202-0258, 00-202-0258, 5985002020258, 002020258
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 59 | JAN 01, 1963 | 00-202-0258 | 00838 ( ATTENUATOR, VARIABLE ) |
REFERENCE DRAWINGS & PICTURES
CYLINDRICAL W/REAR TERMINALS
C
Cross Reference | NSN 5985-00-202-0258
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| B2678 | 82678 | TECHNICAL LABORATORIES INC |
| 2Z394-78 | 80063 | US ARMY COMMUNICATIONS &ELECTRONICS MATERIEL READINESS |
Technical Data | NSN 5985-00-202-0258
| Characteristic | Specifications |
|---|---|
| APPLICATION DESIGN | AUDIO |
| SCHEMATIC DIAGRAM DESIGNATOR | C |
| FREQUENCY RANGE | 0.000 KILOHERTZ MINIMUM AND 4.000 KILOHERTZ MAXIMUM |
| IMPEDANCE RATING IN OHMS | 600.0 INPUT-OUTPUT |
| POWER RATING | 500.0 MILLIWATTS AVERAGE |
| OVERALL ATTENUATION RANGE IN DECIBELS | P0.0/P40.0 |
| OVERALL ATTENUATION ACCURACY IN DECIBELS | M1.00/P1.00 |
| ATTENUATION VARIATION METHOD | STEPPED |
| STEP POSITION QUANTITY | 23 |
| ATTENUATION PER STEP IN DECIBELS | 2.0 |
| BODY STYLE | CYLINDRICAL W/REAR TERMINALS |
| OVERALL LENGTH | 4.125 INCHES NOMINAL |
| BODY LENGTH | 3.000 INCHES NOMINAL |
| OVERALL DIAMETER | 2.750 INCHES NOMINAL |
| ADJUSTMENT DEVICE TYPE AND QUANTITY | 1 SHAFT |
| SHAFT TYPE | ROUND |
| SHAFT DIAMETER | 0.250 INCHES NOMINAL |
| SHAFT LENGTH | 0.875 INCHES NOMINAL |
| TERMINAL TYPE AND QUANTITY | 3 TAB, SOLDER LUG |
| 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 | 1.500 INCHES NOMINAL |
| OPERATING TEMP RANGE | -55.0 TO +125.0 DEG CELSIUS |