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(!!) (Best Overall Single) 7199 Philips by Sylvania NOS 1985 (17.5ma pentode/13.4ma triode) (High Ma and Gm)

(!!) (Best Overall Single) 7199 Philips by Sylvania NOS 1985 (17.5ma pentode/13.4ma triode) (High Ma and Gm)

$ 79.99

1 tube) 7199 Philips by Sylvania NOS 1985

17.5ma and Gm=8400 (pentode section) very strong

13.4ma and Gm=3200 (triode section) very strong

 

 

Good Pentode Section 10-12ma Gm=6000-6500

Good Triode section 7-9ma Gm=1900-2100

 

 

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