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(!) (#2 BEST 6688) 6688=E180F Amperex PQ USA NOS/80% gold pins "D" getter halo 1959 (9.2ma)

$ 14.49

1 tube) 6688=E180F Amperex PQ USA NOS gold pins "D" getter halo 1959

9.2ma Gm=14,300

Tested on Amplitrex

 

  

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

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

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