231_31_US_Made_Balloon_NOS_1920_s_14_2ma

(!!!) 231=31 US Made Balloon NOS 1920”s (14.2ma)

Category: SKU: TOY390646

$9.00 $29.99

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231=31 US Made Balloon NOS 1920”s

14.2ma

Gm=900

1 TUBE ONLY

Vplate=180V

Vgrid=-30V

Good NOS Ma = 11 -12ma

Good Gm = 900-1000+

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