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6688A=E180F Mullard branded RCA gold pins NOS 1973 (17.5ma)

6688A=E180F Mullard branded RCA gold pins NOS 1973 (17.5ma)

$ 15.99

1 tube) 6688A=E180F Mullard branded RCA gold pins NOS 1973 printed in 1975

17.5ma

Gm=17,100

 

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

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

 

 

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