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  • 56 Tungsol rebranded Raytheon tests like new 1940's (6.1ma)
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56 Tungsol rebranded Raytheon tests like new 1940's (6.1ma)

$12.99 $14.99


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1943 56 all black plate Raytheon Sylvania triode Tungsol


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Preamp tubes
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  • Description

56 Tungsol rebranded Raytheon tests like new 1940's

6.1ma

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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