This standard applies to receiving amplifier tubes, digital symbol indicating tubes and ion tubes (hereinafter referred to as electronic tubes). And stipulates the following dimensions of electron tubes: a. Outline dimensions of small seven-pin and small nine-pin electron tubes; b. Outline dimensions of soft lead-out electron tubes; c. Outline dimensions of eight-pin electron tubes; 4. Outline dimensions of large nine-pin electron tubes; e. Dimensions of thirteen-pin electron tube; f. Dimensions of rectangular electron tube.
GB/T 3188-1982 history
2013GB/T 787-2013 Machinical dimensions of receiving tubes
1982GB/T 3188-1982 Outline dimensions of electronic tubes
GB/T 3188-1982 Outline dimensions of electronic tubes was changed to GB/T 787-2013 Machinical dimensions of receiving tubes.