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(!!!!!) (Best Siemens Single 1965) 6922 Siemens Halske Germany NOS branded ECC88 INDUSTRIA (14.4/15.2ma)

(!!!!!) (Best Siemens Single 1965) 6922 Siemens Halske Germany NOS branded ECC88 INDUSTRIA (14.4/15.2ma)

$ 179.99

1 very low noise tube) 6922 Siemens Halske Germany NOS branded ECC88 INDUSTRIA  (A0-1+-5B=1965) A0 1st series - gray shield

1 section) 14.4ma Gm=12,500

1 section) 15.2ma Gm=13,600

 

Good mA range 12-15ma

Good Gm range 11,000-13,000

 

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