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(!!!!) (2nd Best Single 1950's) ECC33=6SN7GT Mullard black plates platter getter halo NOS 1950-1955 (8.3/7.5ma)
(!!!!) (2nd Best Single 1950's) ECC33=6SN7GT Mullard black plates platter getter halo NOS 1950-1955 (8.3/7.5ma)
$ 369.99
1 low noise tube) ECC33=6SN7GT Mullard UK black plates NOS pan shape getter halo 1950-1955 era in original box (rare and best of breed) fair printing
1 section) 8.3ma Gm=3400
1 section) 7.5ma Gm=3200
Good mA range = 7-10mA
Good Gm = 3200-3600
- Sonic Comments: "the ECC33s sound great - big, expansive and very clean and open"
- Best sub for 6SN7GTB
Vfil=6.3V @ 400ma
Maximum ratings: Vplate=300V, Vfil-cathode=100V
Typical operation:
Vplate=250V
Vgrid = -4V
Iplate=9ma
Gm=3600
Mu=35
Rplate=9.7Kohms
Rk=450 ohms
Recommended for:
- Bada PH-12 headphone amp
- Eddie Current Balancing Act
- deHavilland Ultraverve
See more: vacuum tube
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 (2nd Best Single 1950's) ECC33=6SN7GT Mullard black plates platter getter halo NOS 1950-1955 (8.3/7.5ma) "Pin It")