Triotron P225 (B5)
Triotron P225 (B4+sc)
Output pentode
Introduced in 1933 (B5), 1935 (B4+sc)
1
2
3
4
5/sc
base
a
g1
f-,g3
f+
g2
B4+sc/B5
Vf
Af
Va
Vs
Vg
mAa
mAs
ra
gm
Pout
2
0.2
150
150
-4.5
2
2
0.5
Equivalent
PP215
