The F-123-A is a 125 watt dissipation triode with a mu of 14.5. They were made by Federal for use on WWII Liberty ships whose transmitter used 3. The MR-123A may be a direct replacement.
Length = 8.25" Diameter = 2.12"
Max voltage = 2000
Max current = 300
Fil voltage = 10
Fil current = 4 amps GOTO INDEX