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(!) (#1 6688 Single) 6688=E180F Amperex PQ Holland NOS

(!) (#1 6688 Single) 6688=E180F Amperex PQ Holland NOS "O" getter gold pins 1962 (16ma)

$ 21.99

1 tube) 6688=E180F Amperex PQ Holland NOS "O" getter gold pins 1962

16ma

Gm=18,000

 

 

(10,000 hour 9-pin frame grid broadband Pentode, variant is 7737)

- Supratek Chenin, Cortese preamp
- Yamamoto 06-3 2010

 

 

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