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GermanE80CF
Description
NOS combination tube (Pentode/Triode) made by Mullard (high quality, gold pins), can be used headphone amps or Hifi applications in general..
Manufacturer: Mullard
Similar to: ECF80
Pinout: 1=A(T), 2=g1(P), 3=g2(P), 4=H, 5=H, 6=A(P), 7=g3/K(P), 8=K(T), 9=g(T)
Typicalvalues :
Heizung 6,3V/0,33A,
Pentode:
Ua=170V,
Ug2=170V,
Rk=155Ohm,
Ia=10mA,
Ig2=2,7mA,
S=6,2mA/V,
mu=40,
Ri=0,4MOhm,
Triode:
Ua=-100V,
Rk=120Ohm,
Ia=14mA,
S=5mA/V,
mu=18
Maximum values:
Pentode:
Ua=275V,
Pa=2,15W,
Ug2=200V,
Pg2=0,7W,
Pg1=0,1W,
Ik=18mA,
Ukh=100V,
Triode:
Ua=-275V,
Pa=1,75W,
Pg=0,1W,
Ik=18mA,
Ukh=100V,
Rg=0,5MOhm
Socket: Noval
