(!!!!) (Best Quad) 5R4GB GE black base NOS 1981 1% matched
$ 79.99
1 matched quad) 5R4GB GE black base NOS 1981 (MS)
1 tube) 50/40 and 53/40
1 tube) 50/40 and 53/40
1 tube) 50/40 and 53/40
1 tube) 50/40 and 53/40
5R4GB black base = 5R4GYB with brown base
- tubes plugged into octal sockets in photo
- Decware
- DIY
(900 rms volt rating per diode section)
See more: vacuum tube
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 (Best Quad) 5R4GB GE black base NOS 1981 1% matched "Pin It")