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(!!!) (BEST RCA PAIR - BEST VALUE) 6U8A RCA NOS triode section black plate, pentode section gray plate 1960's nice sweet pair

$ 21.99

1 pair) 6U8A RCA NOS; triode section has black plate, pentode section has gray plate 1960's

1 tube)

21ma Gm=10,000 (triode)

12.8ma Gm=8000 (pentode)

1 tube)

19.0ma Gm=9600 (triode)

12.0ma Gm=7800 (pentode)

 

Pairs matched on Amplitrex AT1000

Good Iplate triode = 14-18ma

Good Iplate pentode = 8-10ma

 

 

- VOX

- Radford STA-15 Series III 1965

- McIntosh MX-110

- Grommes PHI-26

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