E83CC All tube operating points below are by no means definitive good sound recipe for your particulate tube project. Lowest THD point is not necessary best sounding one and there is always some variance even in a NOS tube batch from the same manufacturer!  Below information is only useful as a general starting point and […]

ECL86 Triode Part All tube operating points below are by no means definitive good sound recipe for your particulate tube project. Lowest THD point is not necessary best sounding one and there is always some variance even in a NOS tube batch from the same manufacturer!  Below information is only useful as a general starting […]

TUBE DATA LIBRARY Over the years I acquired quite a few different tubes, but which ones are suitable for audio? And which ones are better left for restoring other vintage equipment. Finally I have an answer! Bellow you will find distortion measurements for all of these tubes as well as triode curves for some obscure […]