GB/T 3789.23-1991 Test method for electrical performance of transmitting tubes Test method for controllability of the third grid

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 third grid control capability of the space charge controlled oscillation modulation adjustment and power amplifier tube with anode dissipation power above 25W. GB/T 3789.23-1991 Test method for electrical performance of transmitting tube Test method for third grid control capability GB/T3789.23-1991 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Test method of electrical properties of transmitting tubes
Test method of third grid control ability
Measurements of the electrical properties of traneminting tubesMeasuring methoda of grid N23 control abillty1Subject content and scope of application
This standard specifies the test method of the third grid control ability of transmitting tubes. GB/T 3789.23-91
Replaces GB3789.23-83
This standard is applicable to the test of the third grid control ability of oscillation, modulation, adjustment and power amplifier tubes with anode dissipation power above 25W controlled by space charge.
2Referenced brown standard
GB/T 3789. 1
General principles for the test method of electrical properties of transmitting tubesbzxz.net
3Terms
Grid N03 control abilityGrid N03 control ability refers to the ability of the third grid to control the pole current 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 method
6.1 Add the filament voltage and the voltage of each pole according to the specification, and add enough negative voltage to the first grid to make the electron tube in the cut-off state. Approved by the State Administration of Technical Supervision on August 15, 1991 and implemented on April 1, 1992
GB/T3789.23-91
2 Adjust the negative voltage of the first grid so that the anode current reaches the specified value. 2
6.3 Add the specified negative voltage to the first pole and read the anode current value. Additional notes:
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 Institute of the Ministry of Machinery and Electronics Industry and Factory 779.
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