The Y872 made by Protec appears to be the same as the NL 11826, a 500 watt dissipation triode with a mu of 110 designed for pulse and RF operation. The usable frequency for maximum ratings is 110 MHz. This appears to be a pulse version of the 3-500Z.
Length = 6.38" Diameter = 3.56"
Max voltage = 4000 (17 kV pulse)
Max current = 400 ma
Fil voltage = 5
Fil current = 14.6 amps GOTO INDEX