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(!!) UY-227 RCA Radiotron Balloon used/good 1930 era (3.7ma) Image 1

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

Name: (!!) UY-227 RCA Radiotron Balloon used/good 1930 era (3.7ma)
Brand: tubeworldexpress.shop
SKU: uy-227-rca-radiotron-balloon-used-good-1930-era
Price: 14.00 USD
Availability: InStock
Rating: 5 (1230 reviews)

$14.00 $16.99

Tags:

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

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Preamp tubes

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Description

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

Description

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