(DISPLAY) 242 Duovac USA brass base 1930's used but has high current will not run stable in amp - sold as display tube only

display tube) 242 Duovac USA brass base used/high current 1930's HIGH MA - over 160ma   Tested on Amplitrex Test Data: Vplate=500V Vgrid=-1V Good NOS mA range 100-120ma     General Info 242 is Duovac's version of 242A WE 242/242A: Vplate=1000V max, Iplate=90ma max, u=12.5, work best at 900V and 55ma in SE amp 242/242A will work in PP amp at 1100V and low plate current of 10-15ma You cannot sub a 242 for a 211