Home / Standards / GB/T 3307-1982 GB/T 3307-1982 Active Method of heater intermittent test of low-power electronic tubes 小功率电子管灯丝断续试验方法 Standard Type GBT ICS 31.100 CCS L36 Status 现行 Issue Date 1982-12-15 Implementation 1983-10-01 Responsible Dept 工业和信息化部(电子) Drafting Unit N/A