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(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) 242 Duovac USA brass base 1930's used but has high current will not run stable in amp - sold as display tube only
By Tube World
$ 149.99
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
See more: vacuum tube
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 242 Duovac USA brass base 1930's used but has high current will not run stable in amp - sold as display tube only "Pin It")