(!!) (Good Value Single) ECF80 VALVO FRANCE (La Radiotechnique) NOS 1962

1 tube) ECF80 VALVO FRANCE (La Radiotechnique) NOS 1962 (best value)

1 section) 11.6ma Gm=5000

1 section) 9ma Gm=6600

Matched on Amplitrex

Good Triode Ma/Gm=12-14ma Gm=4500-5000

Good Pentode Ma/Gm=8-10ma Gm=5500-6000

- Klein + Hummel Telewatt Stereo-N.o.v.a VS-70 1962

- Scott 222B

- Scott 299B/C

- Scott 350B

- Graaf

- McIntosh