This requirement is for repair services for the UMTE program, 1 each, Electron Tube, NSN: 5960-01-507-9112FD, PN: VKX-7809M. This is the Pre-solicitation will be posted for 15 days followed by the Sol... This requirement is for repair services for the UMTE program, 1 each, Electron Tube, NSN: 5960-01-507-9112FD, PN: VKX-7809M. This is the Pre-solicitation will be posted for 15 days followed by the Soliciation. This requirement is Sole Source to Microwave Power Products, Inc (Cage Code 99313).