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(!) 247=47 RCA Balloon used/60-65% 1930's (20ma) Image 1
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(!) 247=47 RCA Balloon used/60-65% 1930's (20ma)

$16.99 $19.99


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247 47 Arcturus Balloon power tubes RCA Radiotron Tungsol


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Power Tubes
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  • Description

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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