Light-emitting diodes (116) Buffer driver receiver transceiver (47) Zener diodes (46) Flip Flops (22) Clock Buffers, Drivers (17) Signal switch multiplexer decoder (16) Latches (16) Rotary coding switches (9) Clock/Timing ICs (8) Level conversion shifter (7) Clock Generators, Frequency Synthesizers (6) 74 series logic ICs (6) EEPROM memory (5) Screwdriver/tweezers/wrench tools (4) RF Amplifiers (4) Interface specialized ICs (3) LED light guide tube accessories (3) RF Mixers (3) SRAM memory (2) Specialized logic ICs (2) RF Attenuators (2) Other processors (1) Telecommunication (1) Signal Conditioner (1) Ambient light sensors (1) RFID card ICs (1) RF Switches (1)