EINDBUIS 8P OKTAL BEAM PENTODE

A. F. BEAM PENTODE
Base: OCTAL
Uf = 6,3 V
If = cca 1,3 A
Typical characteristic:
Ua = 250 V
Ug2 = 250 V
-Ug1 = 15 V
Ia = 85 mA
Ig2 = max. 7 mA
S = 6 mA/V
Ri 22,5 k¦¸
Triode connected
Ua,g2 = 250 V
-Ug1 = 15 V
Ra = 1,3 k¦¸

Limiting values:
Ua = 550 V
Ug2 = 550 V
-Ug1 = 200 V
Wa = 25 W
Wg2 = 3,5 W
Wa,g2 = 27 W
Ik = 150 mA
Uk/f = 200 V
Rg1-k (catode bias)
Wa+g2 ¡Ü 27 W 1 M¦¸
Wa+g2 > 27 W 500 k¦¸
Rg1-k (fixed bias)
Wa-g2 ¡Ü 27 W 220 k¦¸
Wa+g2 > 27 W 100 k¦¸
Capacitances:
cg1 = 16 pF
ca = 10 pF
ca/g1 = 2,3 pF