(!!) (PAIR) 6CW4 GE NOS 1980-1981 (88/60 and 91/60)

1 pair) 6CW4 GE nuvistor NOS

1 tube) 88/60 (LS) 1981

1 tube) 91/60 (MR) 1980 small amount of surface rust was sanded off can and area was polished 

(6DS4 is a 6CW4 with extended cutoff)

for:
- Pearl Microphone Lab CT-40
- CJ Premier 6
- Musical Fidelity M3 Nu-Vista Integrated amp
- Fisher 500C