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(!!!) (Recommended Pair) E283CC Siemens Germany NOS original boxes 1974 (1.1/1.2ma and 1.2/1.3ma Gm=1500/1600 and 1600/1700)

(!!!) (Recommended Pair) E283CC Siemens Germany NOS original boxes 1974 (1.1/1.2ma and 1.2/1.3ma Gm=1500/1600 and 1600/1700)

$ 199.99

1 matched pair) E283CC Siemens Germany NOS 1974

1 tube) 1.1/1.2ma Gm=1500/1600

1 tube) 1.2/1.3ma Gm=1600/1700

 

Tested on Amplitrex AT1000

Vplate=250V

Vgrid=-2V

Good Ma = 1.0-1.2ma

Good Gm = 1500-1600

 


E283CC have a DIFFERENT PINOUT than a 12AX7, but is electrically equivalent to a 12AX7 with frame grid construction like a 6922

6.3V parallel filaments

very low noise

10,000 hour rating

 

recommended for:

- Studer J37

 

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