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6SQ7GT Sylvania used/good 1951 (Gm=800)

6SQ7GT Sylvania used/good 1951 (Gm=800)

$ 4.29

1) 6SQ7GT Sylvania used/good 1951 (27/19) on TV-7

.5ma

Gm=900

 

Tested on Amplitrex

Vplate=250V

Vgrid=-2V

Good used Ma = .5-.8ma

Good used Gm = 800-900

 

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