机读格式显示(MARC)
- 000 00555cas a2200181 4500
- 090 __ |a TN102-62/P554/1:2
- 099 __ |a CALB021999664127
- 245 10 |a Philips data handbook : |b electron tubes, |n pt. 1b : |p transmitting tubes for communication, tubes for r. f. heating, amplifier circuit assemblies.
- 260 __ |a Eindhoven : |b Philips, |c 1974
- 300 __ |a unpagings : |b ill. ; |c 23 cm.