(!!!!) (Best Pair) 429A Western Electric NOS 1978 (51-53/20)
$ 139.99
1 pair) 429A Western Electric NOS 1978
1 tube) 53/20 very small 1/32"-1/16" chip/scratches on top of tube - does not effect tube performance, very hard to photograph since it is very small
1 tube) 51/20
Matched on TV-7
above 40+/20 is 100%
See more: vacuum tube
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 (Best Pair) 429A Western Electric NOS 1978 (51-53/20) "Pin It")