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About product and suppliers:
        Alibaba.com offers 1,859 triode electron tube products. About 40% of these are oscillators, 2% are other electronic components, and 1% are amplifier. 

A wide variety of triode electron tube options are available to you, such as home amplifier, professional amplifier. You can also choose from surface mount, throught hole. As well as from free samples, paid samples. 

There are 1,865 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 211 with ISO9001, 109 with Other, and 26 with BSCI certification.