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(!!!) (#1 27 Pair) 27 Philco Balloon used/test like new around 1930 - super fine mesh-plate - same internals (6.6ma and 6.8ma)

(!!!) (#1 27 Pair) 27 Philco Balloon used/test like new around 1930 - super fine mesh-plate - same internals (6.6ma and 6.8ma)

$ 59.99

1 pair) 27 Philco Balloon used/test like new around 1930 - super fine mesh-plate - same internals

1 tube) 6.6ma Gm=900

1 tube) 6.8ma Gm=900 holes in plate

 

Superb sounding preamp tubes, velvety liquid mids

 

Tested on Amplitrex

Vplate=250V

Vgriod=-21V

NOS Ma = 4-5ma

NOS Gm=800-900

See more: vacuum tube
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