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About product and suppliers:
        Alibaba.com offers 1,881 triode electron tube products. About 44% of these are oscillators, 22% are transistors, and 6% are other active components. 

A wide variety of triode electron tube options are available to you, such as paid samples, free samples. 

There are 1,874 triode electron tube suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Vietnam, which supply 99%, 1%, and 1% of triode electron tube respectively. 

Triode electron tube products are most popular in Southeast Asia, North America, and Eastern Europe. 

You can ensure product safety by selecting from certified suppliers, including 179 with ISO9001, 109 with Other, and 26 with BSCI certification.