This opportunity requires a potential bidder to become a qualified source for repairing an Electron Tube used in the F-16 AN/APG-68 Radar Dual Mode Transmitter. The qualification process involves verifying data, repairing a test article, and submitting a qualification test plan and report at the bidder's own expense, with an estimated cost of $4,500. The engineering support activity estimates that completing the qualification effort will require 180 days. The government will notify bidders whether their qualification article passed or failed testing within 90 days of submission. The location for performance of services is not specified.