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6SQ7GT US Brands used/good 1940's (0.7ma and Gm=1000)

6SQ7GT US Brands used/good 1940's (0.7ma and Gm=1000)

$ 3.99

6SQ7GT US Brands used/good 1940's stress crack in base

0.7ma

Gm=1000

 

NOS Ma = 1ma

NOS Gm = 1000

 

Tested on Amplitrex

Vplate=250V

Vgrid=-2V

Good used Ma = .5-.8ma

Good used Gm = 800-900

 

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