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GB/T 787-2013 Machinical dimensions of receiving tubes 660 (USD) via email in 1-5 business day VALID
GB/T 3789.10-1991 Measurements of the electrical properties of transmitting tubes-Measuring methods of grid No1 cut-off voltage 30 (USD) via email in 1-3 business day ABOLISHED
GB/T 3789.2-1991 Measurements of the electrical properties of transmitting tubes-Measuring methods of current of anode and grid 60 (USD) via email in 1-3 business day ABOLISHED
GB/T 3789.19-1991 Measurements of the electrical properties of transmitting tubes-Measuring methods of frequency characteristic curve 15 (USD) via email in 1-3 business day ABOLISHED
GB/T 3789.31-1991 Measurements of the electrical properties of transmitting tubes-Methods of measuring the press of synchronizing pulse 45 (USD) via email in 1-3 business day ABOLISHED
GB/T 3789.14-1991 Measurements of the electrical properties of transmitting tubes-Measuring methods of static characteristic curve for common cathode circuit 60 (USD) via email in 1-3 business day ABOLISHED
GB 3188-1982 Outline dimensions of electronic tubes 135 (USD) via email in 1-3 business day ABOLISHED
GB 11032-1989 Metal oxide surge arresters without gaps for a.c. systems 510 (USD) via email in 1-5 business day ABOLISHED
GB 7274-1987 Methods for the measurement of direct interelectrode capacitances of electronic tubes and valves 195 (USD) via email in 1-3 business day ABOLISHED
GB/T 4597-2012 Vocabulary of electronic tubes 2340 (USD) via email in 1-10 business day VALID
GB/T 3789.8-1991 Measurements of the electrical properties of transmitting tubes-Measuring methods of maximum anode dissipation power and anode overload dissipation power 30 (USD) via email in 1-3 business day ABOLISHED
GB/T 3789.12-1991 Measurements of the electrical properties of transmitting tubes-Measuring methods of interelectrode insulation 30 (USD) via email in 1-3 business day ABOLISHED
GB/T 3789.4-1991 Measurements of the electrical properties of transmitting tubes-Measuring methods of reverse grids current 30 (USD) via email in 1-3 business day ABOLISHED
GB/T 3789.30-1991 Measurements of the electrical properties of transmitting tubes-Methods of measuring the distortion in the chrominance signal due to the luminance (differential gain and differential phase) 60 (USD) via email in 1-3 business day ABOLISHED
GB 1956-1989 The type designation for electron tubes 195 (USD) via email in 1-3 business day ABOLISHED
ZB Y 286-1984 via email in ABOLISHED please email coc@codeofchina.com for quotation
GB/T 3789.11-1991 Measurements of the electrical properties of transmitting tubes-Measuring methods of grid No3 cut-off voltage 30 (USD) via email in 1-3 business day ABOLISHED
GB/T 2987-1996 Letter symbols of parameter for electronic tubes 555 (USD) via email in 1-5 business day VALID
SJ/T 10732-2000 The type designation for electron tubes 240 (USD) via email in 1-3 business day VALID
GB/T 3789.9-1991 Measurements of the electrical properties of transmitting tubes-Measuring methods of maximum grid dissipation power 30 (USD) via email in 1-3 business day ABOLISHED
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