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300 B

A.F. TRIODE

DIMENSIONS (in mm) AND CONNECTIONS:
Moderate power, direct-heated triode for Class A and AB1 service.
base: 4-PIN CERAMIC BASE
Vf = 5 V
If = ca 1.3 A

TYPICAL CHARACTERISTICS:
Va = 300 V
Vg1 = -61 V
Ia = 60 mA
Ri = 700 Ohm
= 3.85
MAXIMUM RATINGS:
Va = 450 V
Wa = 40 W

Maximum plate current of everage tube for fixed bias

Ia = 70 mA

Maximum plate current for manually adjusted grid bias or self-biasing (cathode-bias)

Ia = 100 mA
  CAPACITANCES:
Cg1 = 17 pF
Ca = 11 pF
Cg1-a = 7,5 pF