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NOS beam tetrode from russian production, military specs (-EV = longer life >5.000h and better mechanical stability), for preamps and poweramps und mini-Preamps (for example used in the Madamp G2 ).
NOS Power-Beam-Tetrode, equivalent to EL90 (european"copy" of the 6V6) from russian production, military specs (-EV = longer life >5.000h and better mechanical stability), for power-amps, can replace EL84, but different pinout!.
Manufacturer: Svetlana
Compare to: EL90/6AQ5 => 6V6
Pinout: 1=A, 2=g2, 3=K, 4=H, 5=H, 6=A, 7=g1, 8=K, 9=g2
Typical operating values:
Filament 6,3V/0,5A, Ua=250V, Ug1=-12,5V, Ug2=250V, Ia=45mA, Ig2=5,5mA, S=4,9mA/V, Ri=58KOhm
Maximal operating values:
Ua=250V, Ug2=250V, Pa=12W, Pg2=1,3W, Ik=70mA, Ukh=190V, Rg1=0,5MOhm
Socket: Noval
