(!!!) (Single) 5755=420A Western Electric clear top tests like new 1952 (1.6ma/1.7ma)

1 tube) 5755=420A WE clear top tests like new (239=1952)

1 section) 1.6ma Gm=1400

1 section) 1.7ma Gm=1500

Tested on Amplitrex

Vplate=180V

Vgrid=-.1V

Good like new Ma = 1.6-1.8ma

Good Gm = 1400-1500