Conditions test:

Pentode (p)       Ua= 200V,                   Ug1= -8V,                     Ug2= 200V,            Uf= 6,3V

Triode (t)           Ua= 100V,                   Ug1= -2,3V,                                                 Uf= 6,3V        

 

Results of measurements:

Tube 1

(p)   Ia= 28,0 mA,                 Ig2= 5,0 mA,               S= 3,5 mA/V

(t)    Ia= 6,0 mA,                                                       S= 3,2 mA/V

Tube 2

(p)   Ia= 26,0 mA,                 Ig2= 4,5 mA,               S= 3,5 mA/V

(t)    Ia= 5,0 mA,                                                       S= 3,2 mA/V

Typical values:

(p)    Ia= 17,5 mA,                 Ig2= 3,3 mA,               S= 3,3 mA/V

(t)     Ia= 4,0 mA,                                                       S= 1,4 mA/V