(!) E80CF Valvo Germany rebranded Philips Miniwatt SQ "PINCHED WAIST" NOS 1961 (6BL8 substitute)

E80CF Philips Miniwatt SQ "PINCHED WAIST" NOS Gold Pins made by Valvo Hamburg Germany 1961 made for CGE (Canadian GE) (Made for C GE printed on glass)

Triode: 13.8ma Gm=4700

Pentode: 9.6ma Gm=6100

(The E80CF is a "SPECIAL QUALITY" medium-mu triode/pentode. Specs are similar to 6BL8=ECF80)

- McIntosh MR-67 tuner