机读格式显示(MARC)

• 000 00574nam a2200193 a 4500

• 001 0000335315

• 003 CAL

• 005 20200820170500.0

• 008 090224s1966 enka 000 0 eng d

• 040 __ |a XMU |c XMU

• 090 __ |a TN1-62/R129(8)

• 093 __ |a TN1-62 |2 4

• 099 __ |a CAL 022009022348

• 245 00 |a Radio valve data : |b characteristics of 7,000 valves, transistors, semiconductor diodes and rectifiers, and cathode-ray tubes.

• 250 __ |a 8th. ed.

• 260 __ |a London : |b Iliffe Books Ltd., |c 1966.

• 300 __ |a 230 p. : |b ill. ; |c 28 cm.

• 650 _0 |a Electron tubes.

• 998 __ |a XMU