ECC808=6KX8 Telefunken Diamond Bottom NOS faded printing from rubbing inside box 1969 (.8/1.0ma Gm=1400/1500)
ECC808=6KX8 Mullard Made in Germany by VALVO NOS 1969 same date codes 1-2% matched (matched on Amplitrex)
(!!) (Best Single) ECC808=6KX8 Mullard Made in Germany by VALVO NOS 1969 (2.1/2.2ma)
