E428
E428 is Triode manufactured by Philips Semiconductors.
E428 PHILIPS
Triode
Dimensions (mm)
Heating indirect, AC or DC, parallel
97 x 50
Vf (V) If (A)
4 1 a gm k f1 f2 f1 k,m
3 a1 5
4g
Base O
2 f2
Typical characteristics
Va (V) Ia (m A) Vg1 (V) µ S (m A/V) Ri (kΩ)
200 6 -3.5 28 2.4 11.5
FP 1999.08.09 1/2
E428 PHILIPS
Operating characeristics
Vb (V)
Ra (kΩ) Rk (kΩ) Rg1 (kΩ) Rg1’ (kΩ) Vo (V) Vo/Vi
200 250 7 1000 1000 10 20
FP 1999.08.09...
