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(!!) (Best Pair) 6LF6 RCA and GE Heerlen Holland Big Bottle NOS 1967-1969 (132ma and 136ma) (Counterpoint OTL, Futterman OTL, Prodigy OTL)

(!!) (Best Pair) 6LF6 RCA and GE Heerlen Holland Big Bottle NOS 1967-1969 (132ma and 136ma) (Counterpoint OTL, Futterman OTL, Prodigy OTL)

$ 199.99

1 pair) 6LF6 Heerlen Holland Big Bottle NOS

1 tube) 132ma and Gm=15,550 (GE HOLLAND 1969)

1 tube) 136ma and Gm=16,200 (RCA HOLLAND 1967 rebranded/redated in 1970)

 

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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