The SD613A is a 200 watt, conduction cooled, power tetrode with a full rating frequency of 500 MHz made by Amperex. It appears to be the same as the Eimac 8560A and Y-508.
Length = 2.47" Diameter = 1.64"
Max voltage = 2000
Max current = 250 ma
Fil voltage = 6.3
Fil current = 2.6 amps GOTO INDEX