Log-in

(!!!!) 300B Western Electric NOS 2008 reboxed - blue glue luminescence at top (58ma) (96%) tube in perfect condition

$ 699.99

1 tube) 300B Western Electric NOS 2008 reboxed - blue glue luminescence at top (Serial #231528) tube is in perfect condition - LARGE SHINEY GETTER FLASH, Tube is NOT gassy, it is very stable

 

Test Data:

300B REFERENCE NOS TEST DATA:

Vplate=300V, Vgrid=-58, Iplate=60ma  Gm=5500 (NOS reference)

Vplate=400V, Vgrid=-80, Iplate=85ma (NOS reference)

 

300B Serial #231528 TEST RESULTS:

Vplate=300V, Vgrid=-58, Iplate=58.0ma (96%) Gm=5100 (92%)

Vplate=400V, Vgrid=-80, Iplate=82.0ma (95%) Gm=5450

 

 

 

See more: vacuum tube
Scroll to top