GB/T 3789.10-1991 Test method for electrical performance of transmitting tubes Test method for first grid cut-off voltage

This standard specifies the test method for the third grid control capability of the transmitting tube. This standard is applicable to the test of the first grid cut-off voltage of the space charge controlled oscillation, modulation, adjustment and power amplifier tube with anode dissipation power above 25W. GB/T 3789.10-1991 Test method for electrical performance of transmitting tube Test method for first grid cut-off voltage GB/T3789.10-1991 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Test methods for electrical properties of transmitting tubes
Test methods for first grid cut-off voltage
Measurements of theelectrdcal properties of transmitting tubesMenguring methods of grid N1 cut-off voltage1 Subject content and scope of application
This standard specifies the test methods for the first grid cut-off voltage of transmitting tubes. GB/T 3789.10—91
Substitute GB 3789.10-- 83
This standard is applicable to the test of the first grid cut-off voltage of space charge controlled oscillation, modulation, adjustment and power amplifier tubes with anode dissipation power of more than 25W.
2 Reference standards
GB/T3789, 1 General principles for the test methods of the electrical performance of transmitting tubes 3 Terminology
grid Nel cut-off voltagebzxZ.net
The first grid cut-off voltage
The first grid cut-off voltage refers to the first grid negative voltage when the anode current reaches the cut-off state under the specified working conditions. 4 Electrical schematic
5 Test equipment and test rules
The test equipment and test rules shall comply with the provisions of GB/T3789.1. 6 Test methods
6.1 Add the filament voltage and the voltage of each pole according to the specifications. 6.2 Adjust the first grid negative voltage so that the anode current reaches a certain specified value of zero or close to zero (specified in the detailed specifications), and read the grid voltage value of the first grid voltage approved by the State Administration of Technical Supervision on August 15, 1991 and implemented on April 1, 1992.
Additional Notes:
GB/T 3789.10—91
This standard was proposed by the Ministry of Machinery and Electronics Industry of the People's Republic of China. This standard was drafted by the Electronic Standardization Research Institute of the Ministry of Machinery and Electronics Industry and Factory 779.
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