ECC99 - Vacuum tube

R.F. DOUBLE TRIODE
ECC99 is a 9-pin double triode usually used as a driver for directly heated power triodes (i.e. 300B and 2A3), but in some applications can be used as power tube (headphones amps, small power amps...).

Base: NOVAL
Uf = 6,3 or 12,6 V
If = 800 or 400 mA

Typical characteristic:
Ua = 150 V
Ug = -4 V
Ia = 18 mA
S = 9,5 mA/V
Ri = 2,3 kΩ
μ = 22

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