(!!!) (BEST PAIR) 80=U50 Marconi Madrid Spain tall bottle NOS 1949 (54-60/40 and 54-60/40)
$ 109.99
1 pair) 80=U50 Marconi Madrid Spain tall bottle double square getters NOS 1949
1 tube) 54/40 and 60/40
1 tube) 54/40 and 60/40
Tested on TV-7D/U
See more: vacuum tube