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  1. FireFly3

    Cuckoo Sound Generator PCB

    Anyone happen to have a pcb image for this project that they would like to share? Thanks.
  2. FireFly3

    Displaying amps & volts on 1 display

    I was looking at the datasheets for the Maxim ICL7135 4 1/2 Digit ADC and the ICM7211 4 Digit LCD Decoder Driver: http://pdfserv.maxim-ic.com/en/ds/ICL7135.pdf http://pdfserv.maxim-ic.com/en/ds/ICM7211-ICM7212.pdf I'm still a little (actually alot!) baffled by the various display interfaces...
  3. FireFly3

    When to use a heat sink

    I was looking at various datasheets for bridge rectifiers for the "0-30 VDC STABILIZED POWER SUPPLY" project. I'm trying to understand when a heat sink is required. For example, the datasheet for the NTE5329, 6A bridge rectifier: http://www.nteinc.com/specs/5300to5399/pdf/nte5329_31.pdf...
  4. FireFly3

    Bridge Rectifier Selection

    I've been looking into selecting a one-piece square bridge rectifier for the 30V/3A power supply project. There seems to be lots of these like every other component type! Generally, they seem to have rather heavy voltage/amperage handling abilities. What is the downside to using a bridge with...
  5. FireFly3

    "Snap-in mount" capacitors

    While looking over some big capacitor specs on the NTE site, I came across what they call Snap-in mount. Can these be used with a board I create myself? Is there some kind of connector that I would attach to the board and then the capacitor attaches to that? Or what...?
  6. FireFly3

    LED Flashlight

    Has anyone used one of these Lightwave 4000 flashlights? http://www.lightwave-4000.com/ It uses 10 LED's and they go for about $35 U.S. on eBay. Are they as good as they sound? Maybe it would be interesting to convert the head of a conventional bulb flashlight to one of these LED types. Can...
  7. FireFly3

    Tranformer questions

    I have a transformer out of an old Sanyo receiver that I would like to use for tinkering rather than contribute to the landfill. I realize tranformers aren't rated by pounds/kg but it seems rather substantial (and useful?). It's in a molded metal "container" with some numbers on it that are...
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