This guidance technical document specifies the filament and hot wire voltage series of electron tubes. This guidance technical document is applicable to electron tubes with direct-heated cathodes and indirect-heated cathodes. This guidance technical document does not apply to the following electron tubes: a. Electron tubes with filament circuits connected in series; b. Electron tubes whose working state of the filament circuit is determined by the filament current; c. Electron tubes whose working state is adjusted by changing the filament voltage; d. Electron tubes whose power supply of the filament circuit is adjusted separately. SJ/T 10623-1995 Electron tube filament and hot wire voltage series SJ/T10623-1995 standard download decompression password: www.bzxz.net
This guidance technical document specifies the filament and hot wire voltage series of electron tubes. This guidance technical document is applicable to electron tubes with direct-heated cathodes and indirect-heated cathodes. This guiding technical document is not applicable to the following electron tubes: a. Electron tubes with filament circuits connected in series; b. Electron tubes whose working state of the filament circuit is determined by the filament current; c. Electron tubes whose working state is adjusted by changing the filament voltage; d. Electron tubes whose filament circuit power supply is adjusted separately.

Electronic Industry Standard of the People's Republic of China
SJ/T 10623-1995
Series of filament voltage and heater voltage for eleclron lubexbzxZ.net
Issued on April 22, 1995
Implemented on October 1, 1995
Issued by the Ministry of Electronics Industry of the People's Republic of China1 Scope
Electronic Industry Standard of the People's Republic of China
Series of filament voltage and heater voltage for eleclron lubex
This guiding technical document specifies the series of filament voltage and heater voltage for eleclron lubex. This guiding technical document is applicable to eleclron lubex with directly heated four-pole and potential-pair attached electrodes. This technical document does not apply to the following electronic tubes: a. Electronic tubes whose filament circuits are connected in series, whose working state is determined by the lamp current; e. Electronic tubes whose working state is adjusted by changing the filament voltage; d. Electronic tubes whose lamp circuit power supply is adjusted separately. 2 Detailed requirements
2.1 Filament and hot wire voltage series
The filament and hot wire voltage series are as follows:
SI/T10623-1995
8J/7.1506-80
1.2.1.4,1.5,2.0.2.5.3.0,3.5,4.0,5.0,5.5,(6.0),6.3, (7.5).8.0,10.0,(11.0).12.0,(12.6).14.0,16.0,18.0,20.0,22.0,25.0V. The voltage in brackets is not recommended for new product design. 2.2 The range of allowable changes in the nominal value of the filament or hot wire voltage is specified in the detailed specifications of various types of electron tubes. Additional Notes:
This guiding technical document is issued by the Standardization Research Institute of the Ministry of Electronics Industry. The main drafting unit of this guiding technical document is the 50th Institute of Electronics Industry, and the main authors of this indicative technical document are Mi Niuliang and Xiang Jiman. Approved by the Ministry of Electronics Industry of the People's Republic of China on April 22, 1995 and implemented on October 1, 1995
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