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(!!) UY-227 RCA Balloon NOS 1930 era (4.3ma) Image 1
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(!!) UY-227 RCA Balloon NOS 1930 era (4.3ma) Nav Image 1

(!!) UY-227 RCA Balloon NOS 1930 era (4.3ma)

$33.99 $39.99


Tags:

1930's 227 27 Balloon Cunningham Fada preamp tubes RCA Tungsol UY-227


Categories:

Preamp tubes
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  • Description

UY-227 RCA Balloon NOS 1930 era

4.3ma

Gm=800

 

Tested on Amplitrex

Vplate=250V

Vgriod=-21V

NOS Ma = 4.6-5ma

NOS Gm=900

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