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71A RCA Radiotron Balloon used/good 1930's (21ma) Image 1

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71A RCA Radiotron Balloon used/good 1930's (21ma)

Name: 71A RCA Radiotron Balloon used/good 1930's (21ma)
Brand: tubeworldexpress.shop
SKU: 71a-rca-radiotron-balloon-used-good-1930s
Price: 45.00 USD
Availability: InStock
Rating: 5 (872 reviews)

$45.00 $52.99

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71A Balloon Cunningham CX-371A power tubes Radiotron RCA UX-171A

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Power Tubes

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Description

71A RCA Radiotron Balloon used/good 1930's

21ma

Gm=1700

Tested on Amplitrex

Vplate=180V

Vgrid=-38V

Good Ma = 20ma

Good Gm = 1600-1700

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71A RCA Radiotron Balloon used/good 1930's (21ma)

Description

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