56 RCA no name NOS 1940”s getter halo screen loose at bottom of tube (6.5ma)

56 RCA no name NOS 1940”s getter halo screen loose at bottom of tube, this does not effect tube performance

6.5ma

Gm=1600

Tested on Amplitrex:

Vplate=250V

Vgrid=-13.5V

Iplate good range = 4.5-5.5ma

Gm=1400