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  1. Adam850

    Shift Registers

    I will be attempting to make a LED sign, but first I need to do some research. My first question is: What is a shift register, and how does it work?
  2. Adam850

    Triac help

    I am trying to use a triac to replace a broken relay in a circuit I made. A 555 is setup to flash on and off about every second. The positive pulses go to a relay, which controls a 60W 120VAC light bulb. I have bought a triac to replace the relay, but I don't exactly know how to use it...
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