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ECC33, CV2821, SMALL SIGNAL, OCTAL

The ECC33 is a low impedance double triode with high gain. It featured separate cathodes and was designed for use as AF voltage amplifiers, phase splitters.

 Many aficionados prefer this valve to the more common ECC32 variants due to the lower impedance and the curiously smaller and very rigid para-ellipsoid electrode cage which makes for a very stable, low noise base floor non microphonic dry incisive sound.

The wide glass tube envelope is 28mm in diameter and, excluding the IO base pins, is 62mm tall.

 

ECC33

ECC33, MULLARD, BLACK BASE, WHITE BOX, FACTORY CODE, 1324I2

ECC33, MULLARD, BLACK BASE, WHITE BOX, FACTORY CODE, 1324I2
ECC33, MULLARD, BLACK BASE, WHITE BOX, FACTORY CODE, 1324I2

ECC33, MULLARD, BLACK BASE, WHITE BOX, FACTORY CODE, 1324I2
ECC33, MULLARD, BLACK BASE, WHITE BOX, FACTORY CODE, 1324I2

ECC33, MULLARD, BLACK BASE, WHITE BOX, FACTORY CODE, 1324I2
CV2821, MIL SPEC ECC33, MULLARD, BROWN BASE, 5K B5F, BLACKBURN 1955 PRODUCTION

CV2821, MIL SPEC ECC33, MULLARD, BROWN BASE, 5K B5F, BLACKBURN 1955 PRODUCTION
ECC33, MULLARD, BLACK BASE, FAINT PRINT, WHITE BOX,

ECC33, MULLARD, BLACK BASE, FAINT PRINT, WHITE BOX,
ECC33, MULLARD, BLACK BASE, WHITE BOX, FACTORY CODE, 1324 C3

ECC33, MULLARD, BLACK BASE, WHITE BOX, FACTORY CODE, 1324 C3
ECC33, MULLARD, BLACK BASE, WHITE BOX, FACTORY CODE, 5K1 B5E

ECC33, MULLARD, BLACK BASE, WHITE BOX, FACTORY CODE, 5K1 B5E
ECC33, MULLARD, BLACK BASE, NEW, WHITE BOX, FACTORY CODE, B24J2

ECC33, MULLARD, BLACK BASE, NEW, WHITE BOX, FACTORY CODE, B24J2