THYRATRON
The NL-740P . 6857 Vacuum tube is a quick starting industrian thyratron designed especially for heavy duty
ignitor firing applications. It is gas and murcury filled for quick starting and constancy of
characteristics within wide temperature limits.
Electrical Data:
Heater Voltage .................... 2.5 Volts
Heater Current .................... 4 Amps DC
Substitutes .............................. 740, 6857, NL-740P