https://filthypants.blogspot.com/2017/01/tung-sol-kt66-replace-6l6-for-hifi.html
Filthy Pants: A Computer Blog: Tung-Sol KT66 Replace 6L6 for HiFi
Size comparison of Tung-Sol KT66s vs a Svetlana 6L6 I've tried a few different varieties of 6L6 power tubes in my Dared VP-20 amplifier,...
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