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ECC99

A.F. DOUBLE TRIODE

DIMENSIONS (in mm) AND CONNECTIONS:
base: NOVAL

Vf = 6,3 V 12,6 V
If = 800 mA 400 mA

TYPICAL CHARACTERISTICS:
Va = 150 V
Vg = -4 V
Ia = 18 mA
S = 9.5 mA/V (9500 umho)
R1 = 2300 Ohms
= 22

SUGGESTED USES:

Driver of power tubes,such as 300B, 2A3, EL34, KT88..., line or output stage, headphone amplifiers, CDs, small P-P triode power amplifiers in class A (10W-4xECC99) and parallel voltage regulators. Can be used instead of 5687, E182CC, 6840, 6BL7 (not directly interchangable, pinout is different).

MAXIMUM RATINGS:
Va = 400 V
Ik = 60 mA
Vf/k =200 mA
Wa = 5 W

CAPACITANCES:

  Sec I Sec II
Cg/k = 5.8 5.8 pF
Ca = 0.91 0.81 pF
Cg/a = 5.1 5.1 pF