Light-emitting diodes (111) Buffer driver receiver transceiver (48) Zener diodes (48) Clock Buffers, Drivers (46) Clock Generators, Frequency Synthesizers (32) Flip Flops (21) Signal switch multiplexer decoder (16) Latches (16) Rotary coding switches (9) Clock/Timing ICs (7) 74 series logic ICs (6) Level conversion shifter (5) Screwdriver/tweezers/wrench tools (5) EEPROM memory (4) RF Amplifiers (4) Interface specialized ICs (3) LED light guide tube accessories (3) Ambient light sensors (3) RF Mixers (3) SRAM memory (2) Specialized logic ICs (2) MOSFET (2) RF Attenuators (2) Other processors (1) Telecommunication (1) Signal Conditioner (1) Gas sensors (1) RFID card ICs (1) RF Switches (1)