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(!!!) (Best Single) GZ30=5Z4GT Mullard UK NOS 1962 (57/30 and 58/30) (rare) 1-2% section balance
(!!!) (Best Single) GZ30=5Z4GT Mullard UK NOS 1962 (57/30 and 58/30) (rare) 1-2% section balance
$ 179.99
GZ30=5Z4GT Mullard UK NOS "D" getter 1962 (5H1-B2F3) very good printing
57/40
58/40
(5Z4GT has same ratings as 5Y3GT, but is indirectly heated like a 5AR4)
- Dared
- Leak TL 10.1
- Woo Audio WA22
- Woo Audio WA5LE
See more: vacuum tube
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 (Best Single) GZ30=5Z4GT Mullard UK NOS 1962 (57/30 and 58/30) (rare) 1-2% section balance "Pin It")