Tubes Asylum

This is what I have found:

172.56.81.223

This Post Has Been Edited by the Author

In Reply to: RE: Tung-Sol 6520 - test questions posted by Byrd69 on February 19, 2023 at 09:26:26

https://www.radiomuseum.org/forumdata/upload/6520%7E%7E1%2Epdf

And I see it as interchangeable with 6AS7.

iBasso DX300MAX Ti. Focal Utopia and Stellia. iBasso SR2. Mr. Speakers, Ether II, Voce stats. Manley, Absolute headphone amp. LTA MZ3, Z10e electrostatic amp. Many other headphones, amps, cables etc.

Edits: 02/19/23

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