000
00293nam a22000977a 4500
082
_a
621.384 RAD'I
245
_a
RADIO VALVE DATA CHARACTERISTICS OF 7000 VALVES TRANSISTORS, SEMICONDUCTOR DIODES AND RECTIFIERS AND CATHODS RAY
260
_a
LONDON
_b
ILIFFE
_c
1966
300
_a
230P
942
_c
BK
999
_c
566951
_d
566951