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(!!) (Best Single) E288CC=8223 Siemens Germany NOS 1974 (31/32.5ma) close section balance

(!!) (Best Single) E288CC=8223 Siemens Germany NOS 1974 (31/32.5ma) close section balance

$ 99.99

1 low noise tube) E288CC=8223 Siemens Germany NOS 1974

1 section) 31.0ma Gm=19,000
1 section) 32.5ma Gm=19,200

 

NOS Ma = 30ma

NOS Gm = 18,000

Tested on Amplitrex

 

(Specs: Vfil=6.3 Ifil=0.475A, Vplatemax=250V Pwattsmax=3.0)

Typical Operation:
Va   Vg1   Ia     Ra     Gm  Rk    Mu
100 -1.5 30.0 1,400 18.0 350 20-25

See more: vacuum tube
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