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247_47_RCA_Balloon_used_60_65_1930_s_20ma_1

247_47_RCA_Balloon_used_60_65_1930_s_20ma_2

(!) 247=47 RCA Balloon used/60-65% 1930”s (20ma)

Category: vacuum tube SKU: TOY390662

$6.00 ~~$19.99~~

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247=47 RCA Balloon used/60-65% 1930”s in WB

20ma

Gm=1530

Vplate=250V

Vscreen=250V

Vgrid=-15V

NOS Iplate=27ma

NOS Gm=2350

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