30 mhz center freq,insertion loss 1.0 db,10 pct bandwidth,50 ohms impedance,0 to 180 deg min phase shift,5 to 55 hz vibration freq range,1.5 vswr,phase stability -55 to +85 deg c dial indication 0.0 to 100.0,uncalibrated,bnc type terminals,encased,4.640 in. lg,2.050 in. w,3.170 in. h incl terminals,four no. 4/0.112 in./-40 thd mtg holes on 1.380 x 1.380 in. mtg cntrs special features, 2 connector, receptacle terminal type and quantity

A grouping of two or more different discrete items, such as resistors, coils, or capacitors, electrically connected and used as a unit to effect a change in phase, such as shifting, splitting, and inversion of voltage or current in a circuit. For items fabricated by monolithic and/or thin film techniques, see microcircuit (as modified).