| OP290A | 
                                        TT Electronics/Optek Technology | 
                                        4,452 | 
                                        EMITTER IR 890NM 150MA T 1 3/4 | 
                                    
                                                                    
                                        | OP290ARC/883C | 
                                        Rochester Electronics, LLC | 
                                        612 | 
                                        IC OPAMP GP 2 CIRCUIT 20CLCC | 
                                    
                                                                    
                                        | OP290B | 
                                        WEC | 
                                        118 | 
                                        EMITTER IR 890NM 150MA T 1 3/4 | 
                                    
                                                                    
                                        | OP290C | 
                                        TT Electronics/Optek Technology | 
                                        3,000 | 
                                        EMITTER IR 890NM 150MA T 1 3/4 | 
                                    
                                                                    
                                        | OP290FZ | 
                                        Rochester Electronics, LLC | 
                                        7,205 | 
                                        IC OPAMP GP 2 CIRCUIT 8CERDIP | 
                                    
                                                                    
                                        | OP291A | 
                                        TT Electronics/Optek Technology | 
                                        3,000 | 
                                        EMITTER IR 890NM 150MA T 1 3/4 | 
                                    
                                                                    
                                        | OP291B | 
                                        TT Electronics/Optek Technology | 
                                        3,000 | 
                                        EMITTER IR 890NM 150MA T 1 3/4 | 
                                    
                                                                    
                                        | OP291C | 
                                        WEC | 
                                        517 | 
                                        EMITTER IR 890NM 150MA T 1 3/4 | 
                                    
                                                                    
                                        | OP291GS | 
                                        Rochester Electronics, LLC | 
                                        6,224 | 
                                        IC OPAMP GP 2 CIRCUIT 8SOIC | 
                                    
                                                                    
                                        | OP291GS-REEL | 
                                        Analog Devices Inc. | 
                                        585,826 | 
                                        IC OPAMP GP 2 CIRCUIT 8SOIC | 
                                    
                                                                    
                                        | OP291GS-REEL7 | 
                                        Analog Devices Inc. | 
                                        9,600 | 
                                        IC OPAMP GP 2 CIRCUIT 8SOIC | 
                                    
                                                                    
                                        | OP291GSZ | 
                                        Analog Devices Inc. | 
                                        243 | 
                                        IC OPAMP GP 2 CIRCUIT 8SOIC | 
                                    
                                                                    
                                        | OP291GSZ-REEL | 
                                        Analog Devices Inc. | 
                                        11 | 
                                        IC OPAMP GP 2 CIRCUIT 8SOIC | 
                                    
                                                                    
                                        | OP291GSZ-REEL7 | 
                                        Analog Devices Inc. | 
                                        778 | 
                                        IC OPAMP GP 2 CIRCUIT 8SOIC | 
                                    
                                                                    
                                        | OP2920001P | 
                                        Rochester Electronics, LLC | 
                                        3,000 | 
                                        835-0296-010 IC |