JJ Electronic 6550 Matched Quad Vacuum Tubes

A.F. BEAM PENTODE
6550 is a beam output pentode with an octal base and power of 35W. Very powerful and great for bass, guitar and Hi-Fi amplifiers. It delivers a little less power than the KT88 but with a fatter tone

Base: OCTAL
Uf = 6,3 V
If = ca 1,6 A

Typical characteristic:
Ua = 250 V
Ug2 = 250 V
-Ug1 = 14 V
Ia = 140 mA
Ig2 = max 12 mA
S = 11,8 mA/V
Ri = 16 Ω