User Manual

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EL84
A. F. OUTPUT PENTODE
max 22,0
max 71,4 max 77,8
Base: NOVAL
Uf = 6,3 V
If = 0,760 A
Typical Characteristics:
Ua = 250 V
Ug2 = 250 V
Ug1 = -7,3 V
Ia = 48 mA
Ig2 = 5,5 mA
S = 11,3 mA/V
Ri = 40 kΩ
µg1/g2 = 19
Class A
1
Amp.:
Ua = 250 V
Ug2 = 250 V
Rk = 135 Ω
Ia = 48 mA
Ig2 = 5,5 mA
Ra = 5,2 kΩ
U g1eff (50mW) = 0,3 V
Ug1eff(N) = 4,3 V
N (10%)
1)
= 5,7 W
N
2)
= 6 W
Limiting Values:
Ua = 300 V
Wa = 12 W
Ug2 = 300 V
Wg2 = 2 W
Ug1 = -100 V
Ik = 65 mA
Rg1 = 1 MΩ
for automatic bias
Rg1 = 0,3 MΩ
for fixed bias
Uk/f = 100 V
Capacitances:
cg/k = 10 pF
ca = 5,1 pF
cg/a = 0,6 pF
cg1f = 0,15 pF
1)
Ug1 fixed grid bias
2)
Ig1 = 0,3 µA
6BQ5