1 pair) 6JE6C=6LQ6 GE similar build
1 tube) 72ma Gm=9200 GE low hours like new 1970's
1 tube) 68ma Gm=8900 GE/Westinghouse NOS 1982
Tested on Amplitrex AT1000
Vplate=175V
Vscreen=125V
Vgrid=-25V
Iplate GOOD range 70-90ma
Gm GOOD range 8,500 - 10,000
- Thunderbolt 305