EL84

6BQ5
R.F. OUTPUT PENTODE

DIMENSIONS AND CONNECTIONS:

base: NOVAL
Uf = 6,3 V
If = 760 mA

TYPICAL CHARACTERISTIC:

Ua = 250 V
Ug2 = 250 V
Ug1 = -7,3 V
Ia = 48 mA
Ig2 = 5,5 mA
S = 11,3 mA/V
Ri = 40 kOhm
g1/g2 = 19

CLASS A AMPLIFIER:

Ua = 250 V
Ug2 = 250 V
Rk = 133 Ohm
Ia = 48 mA
Ig2 = 5,5 mA
Ra = 5,2 kOhm
Ug1eff(50mW) = 0,3 V
Ug1eff(N) = 4,3 V
N(10%)1) = 5,7 W
N2) = 6 W
1)Ug1fest fixed grid bias
2)Ig1=+0,3 uA

LIMITING VALUES:

Ua = 300 V
Wa = 12 W
Ug2 = 300 V
Wg2 = 2 W
Ug1 = -100 V
Ik = 65 mA
Rg1 = 1 MOhm for automatic bias
Rg1 = 0,3 MOhm for fixed bias
Uk/f = 100 V

CAPACITANCES:

Cg/k = 10 pF
Cg/a = 0,6 pF
Ca = 5,1 pF
Cg1f = 0,15 pF