(!!!) (BEST PAIR #2) ECC808=6KX8 Telefunken Diamond Bottom NOS 1969 (1.1/1.1ma and 1.1/1.4ma)

1 matched pair) ECC808=6KX8 Telefunken Germany Diamond Bottom NOS 1969  

1 tube) 1.1/1.4ma Gm=1500/1600 (B8009801=1969)

1 tube) 1.1/1.1ma Gm=1600/1600 (B8109201=1969)

Matched on Amplitrex

Vplate=250V

Vgrid=-1.9V

Good Ma = 1.2ma

Good Gm = 1600

B=Berlin

Tubes were "Factory Sealed "

(5 are used in the 4 Channel Echolette PA amp made in Germany)