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(!!) (Recommended Pair) 6LF6 Sylvanbia NOS same build 1970 era (117ma and 122ma) (Counterpoint OTL, Futterman OTL, Prodigy OTL)

(!!) (Recommended Pair) 6LF6 Sylvanbia NOS same build 1970 era (117ma and 122ma) (Counterpoint OTL, Futterman OTL, Prodigy OTL)

$ 138.88

1 pair) 6LF6 Sylvanbia NOS same build

1 tube) Sylvania branded Zenith (117ma, Gm=14,200)

1 tube) Sylvania branded RCA (122ma Gm=14,500) faded printing

 

 

Tested on Amplitrex 

Vplate=175V

Vscreen=125V

Vgrid=-25V

NOS Iplate range 100-150ma

NOS Gm range 13,000 - 15,000

 

(6LF6=6.3V @ 2A Filament, Vplate=990Vmax, Vplate=8000Vpeak-pulse, 40 watts)
 


- Futterman OTL

- Prodigy OTL

- Counterpoint SA4 OTL

See more: vacuum tube
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