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56_RCA_no_name_NOS_1940_s_made_for_Radiotelefonica_Argentia_5_1ma

56_RCA_no_name_NOS_1940_s_made_for_Radiotelefonica_Argentia_5_1ma

56 RCA no name NOS 1940”s made for Radiotelefonica Argentia (5.1ma)

Category: vacuum tube SKU: TOY393751

$4.20 ~~$13.99~~

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56 RCA no name NOS 1940”s made for Radiotelefonica Argentia in original box

5.1ma

Gm=1300

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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