This 400 watt C-Band TWTA has been totally refurbished and tested, it is now available and ready for immediate shipment.
Testing output over the full frequency range of 5925 MHz to 6425 MHz, at 400 watts the helix current was measured at 2.3 ma. The engineering summary said that ETM indoor rack mount model # 400CV,part # A28800-070,ser #H2252 was A well performing unit with entire " machine interface board "being rebuilt." Approximate hours on console 5218 and 4800 with RF on.
The full engineering report will be available upon request.