The C201 is a triode made for use in Collins 300E and 30FXR transmitters. This example was made by Amperex. Collins replaced C201 tubes with the 211H tubes so the specifications for that tube should be close.

Length = 9.25" Diameter = 2.50"
Max voltage =
Max current =
Fil voltage = 10
Fil current = 3.25 amps         GOTO INDEX