UY_227_RCA_Radiotron_Balloon_used_good_1930_era_3_7ma

(!!) UY-227 RCA Radiotron Balloon used/good 1930 era (3.7ma)

Category: SKU: TOY394937

$5.10 $16.99

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UY-227 RCA Radiotron Balloon used/good 1930 era

3.7ma

Gm=800

Tested on Amplitrex

Vplate=250V

Vgriod=-21V

NOS Ma = 4.6-5ma

NOS Gm=900

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