Teltron Technologies Inc. of Birdsboro, Pa., has received 28 orders from the US government and military contractors to manufacture or remanufacture camera tube imaging sensors for use in hardware on platforms such as the F-111 Aardvark, the AH-64A Apache helicopter and the Hawk Missile System. Follow-on orders are expected. Teltron is a wholly owned subsidiary of Video Display Corp. of Tucker, Ga.