ECF80=6BL8 Telefunken NOS 1971 original box, tube was factory sealed – fair printing

triode section) 11.8ma Gm=5100

pentode section) 9.4ma Gm=6400

Recommended for

– McIntosh MR67, MR71 FM Stereo tuner
– Telefunken radio
– Graaf GM 100 amplifier
– HH Scott 350 Tuner 1961-2