(!!!) (Best Balloon 50) 450=50 Sparton Balloon tests like new 1930 era (61.5ma) (High mA and Gm) (rare 50) Cheap
Original price was: $349.99.$140.00Current price is: $140.00.
(!!!) (Best GE 1954) 12AY7 GE branded RCA gray plates "D" getter NOS 1954 (2.3/2.9ma) For Discount
Original price was: $89.99.$36.00Current price is: $36.00.
Original price was: $199.99.$80.00Current price is: $80.00.
(!!!) (BEST BUGLE BOY PAIR) EF86 Amperex Bugle Boy Holland NOS, Belgium plant 1963 (4.0ma and 3.5ma) (same Gm)
1 pair) EF86 Amperex Bugle Boy Holland NOS, Belgium plant 1963
1 tube) 4.0ma Gm=2200
1 tube) 3.5ma Gm=2200
Matched on Amplitrex
Vplate=250V
Vscreen=140V
Vgrid=-2V
Good Ma = 3ma
Good Gm=1800-2200
– Vox AC10, AC30
– Dr. Z Z-28
– Vox AC15HTVH head (install all Mullard tubes: EF86, 12AX7, EZ81, EL84)
– Eastern Electric M520
– Matchless C-30, SC30
– Bottlehead
| EF86 Amperex Bugle Boy Holland NOS, Belgium plant 1963 | EF86 Amperex Bugle Boy Holland NOS, Belgium plant 1963 |
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