B438
B438 is Triode / Detector or LF amplifier manufactured by Philips Semiconductors.
B438 PHILIPS
Triode, Detector or LF amplifier
Dimensions (mm)
83 x 42
Heating direct, AC or DC, parallel
Vf (V) If (A)
4 0.1 a g a1 f1
4g f1 f2
Base A
2 f2
Capacitances Operating characteristics
Cag (pF)
Vb (V) Ra (kΩ) Vg (V) Ia (mA) µ S (mA/V) Ri (kΩ)
200 200 320 1000 -2.5 -2.5 0.2 0.05 38 38 2.0 2.0 170 400
FP 1999.08.26...
