Light-emitting diodes (121) Zener diodes (47) Buffer driver receiver transceiver (43) Clock Buffers, Drivers (27) Flip Flops (21) Signal switch multiplexer decoder (17) Latches (16) Clock/Timing ICs (8) Clock Generators, Frequency Synthesizers (8) Rotary coding switches (7) 74 series logic ICs (6) Interface specialized ICs (6) Level conversion shifter (5) Screwdriver/tweezers/wrench tools (5) EEPROM memory (4) RF Amplifiers (4) RF Mixers (4) LED light guide tube accessories (3) Other processors (2) SRAM memory (2) Specialized logic ICs (2) RF Attenuators (2) Shift register (1) Telecommunication (1) Signal Conditioner (1) RFID card ICs (1) RF Switches (1)