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56 Sylvania branded RCA NOS 1946 (6.0ma) Image 1

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56 Sylvania branded RCA NOS 1946 (6.0ma)

Name: 56 Sylvania branded RCA NOS 1946 (6.0ma)
Brand: tubeworldexpress.shop
SKU: copy-of-56-rca-no-name-nos-1940s-made-for-radiotelefonica-argentia-5-1ma
Price: 15.00 USD
Availability: InStock
Rating: 5 (1262 reviews)

$15.00 $17.99

Tags:

1943 56 all black plate Raytheon Sylvania triode Tungsol

Categories:

Preamp tubes

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Description

56 Sylvania branded RCA NOS 1946

6ma

Gm=1600

Tested on Amplitrex:

Vplate=250V

Vgrid=-13.5V

Iplate good range = 4.5-5.5ma

Gm=1400

(Vfilament = 2.5 volts)

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56 Sylvania branded RCA NOS 1946 (6.0ma)

Description

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