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6BQ7A RCA black plates NOS

6BQ7A RCA black plates NOS "O" getter 1970 (single)

$ 14.99

1 tube) 6BQ7A RCA black plates NOS "O" getter NOS 1970 (Gm=2740/2910)
 

Tested on Maxi-Preamp

(Good Gm range 2200-2900)

 
(also see 6BZ7 and 6BK7B)

- Modwright Transporter
- Schiit Lyr amp 2011
- Don Allen
- Donald North Audio (DNA) Stratus

See more: vacuum tube
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