How to Spot Super Rare 12AX7 Vacuum Tubes part I

Thursday, January 28, 2010


The first here at Blue Tube Project in Tube Spotting.

This short video briefly touches on some of the most famous and sought after 12AX7 NOS vintage tubes. Featured are the very rare Mullard longplates, Amperex Bugle Boy and longplates, Mazda silver plates, and the Telefunken line of smoothplates, selected tubes, and rib plates.

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