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(!!!!!) (Best Siemens Pair mid-1960's) 6922=E88CC Siemens Halske Germany branded Amperex gray shield NOS mid-1960's (16/17ma and 16.2/18ma)

(!!!!!) (Best Siemens Pair mid-1960's) 6922=E88CC Siemens Halske Germany branded Amperex gray shield NOS mid-1960's (16/17ma and 16.2/18ma)

$ 359.99

1 very low noise pair) 6922=E88CC Siemens Halske Germany branded Amperex gray shield NOS mid-1960's in WB

1 tube) 16/17ma Gm=13,600/13,500

1 tube) 16.2/18ma Gm=13,100/14,000 faded printing - on right

 

Good mA range 12-15ma

Good Gm range 11,000-13,000

 

Recommended for

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