000 00604 a2200241 4500
001 317901
020 _a
041 _aeng
080 _aLNASA TP 1670 : 1980
245 _aMultistage depressed collector with efficiency of 90 to 94 percent for operation of a dual - mode traveling - wave tube in the linear region
250 _a
260 _aWashington, D.C.
260 _bNASA
260 _c1980
300 _a15 p.
300 _c
856 _u
490 _aNASA TP 1670 : 1980
700 _a
650 _a
650 _aTraveling wave tubes, Multi-stage depressed collectors
942 _cPP
942 _2UDC
999 _c264511
_d264511