6F1P (6Ф1П) 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 point and is ment to get you in a ballpark when no measurement equipment is available.

Lowest THD operating point spectrum

10mA, -4.34V BIAS, 161V

Other operating points

 8mA, -4.8V BIAS, 161Va
6mA, -7.67V BIAS, 205Va

Traced plate curves


Quite linear triode with a clean spectrum. Available for sale.

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