6Z5P (6Ж5П)
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 (recommended)
12.5mA, -1.25V BIAS, 150Va
Other operating points
10mA, -1.48V BIAS, 150Va
7.55mA, -2.6V BIAS, 150Va
5mA, -2.6V BIAS, 150Va
3mA, -4.2V BIAS, 200Va
Traced plate curves
THD statistics
