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  1. Braeden Hamson

    Logic behind resistor values

    I found this really handy resistor value guide on RF Cafe http://www.rfcafe.com/references/electrical/resistor-values.htm I'm wondering why these values were chosen, I'd like to be able to memorize them so I don't have to look them up. Knowing why they are what they are would help.
  2. Braeden Hamson

    Looking for info on Trackpoints

    Hey guys I dug a track point aka track stick aka that little nub on think pads out of an old dell laptop. I'd like to put this into an arduino based joystick, if possible. This one has four wires. Does anyone know much about them? Any info is appreciated even just the technical name. Thanks!
  3. Braeden Hamson

    Any tips on using these crimps?

    Hey guys, I bought some of these crimps (see attached) which I'm putting into these housings. http://www.digikey.com/product-detail/en/molex-llc/22-01-3037/WM2001-ND/26433?WT.srch=1&gclid=Cj0KEQiAl4TGBRDhgvmikdHPsdABEiQAtBcc8BG9YHS2NE2omT_FOUQGxMlLtnedSOYw4q1VU1ORkh4aAgpn8P8HAQ (MF PN...
  4. Braeden Hamson

    Strobing lights before/without a timer (like the 555)

    I've always wondered how blinking/strobing lights were made before things like the 555. Or to put it more simply is there a way to make a light blink without a 555 chip?
  5. Braeden Hamson

    Understanding RF Signals

    This is going to be a pretty damn broad post. I've been listening into WebSDR sites for a while now and they've piqued my interest in radio. And now I want to learn more. I'm wondering if anyone knows any good places to learn about radio transmissions. I kinda want to learn anything and everything.
  6. Braeden Hamson

    Building a Microphone should be easy, right?

    I'm probably not on the right forum right now. But hey one of you might know. I wanted to build my own microphone so I pulled the mic out of some crappy IEM headphones and soldered one up with a mono jack. The trouble is my PC doesn't see it as a microphone. And I have no idea why (Electronics...
  7. Braeden Hamson

    Looking for advanced soldering tips

    I'd say I'm decent at soldering. I can solder a wire onto a PCB trace. I bend the ends of my wires into hooks and hook them together when I splice and always use flux and heat shrink. That's what I know. But I'm looking for any great things you guys have picked up over the years. One thing I...
  8. Braeden Hamson

    Overkill LEDs and PWMing with electric switch

    Hey guys, So I'm building a backlit switch box, in the style of aircraft panels. I bought some LEDs modules without looking at the datasheet... http://optekinc.com/datasheets/OVM12F3R7.pdf As you can see they're beefy. I want to PWM these LEDs. I was thinking I'd use a 555 timer chip and...
  9. Braeden Hamson

    Help with solid state relays

    I'm attempting to make an ON-ON-ON switch with an ON-OFF-ON switch. I'm hacking together my own custom built joystick. I went to Fry's and picked up some nice toggle switches, unfortunately they're on-off-on switches. I need a way for power to flow when the switch is in the off position, and for...
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