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  1. J

    Help circuit for project idea.

    a vaporiser is what medical marijuana users use to release the THC from the weed and not burn the other material. It heats up only to a given temp, like 150 degrees or something. So yeah, it is drug para, not that it matters.
  2. J

    please help a supern00b building a 12V timer

    http://www.kpsec.freeuk.com/555timer.htm#monostable this is how it works. it also gives you the formula for the time period. C1 and R2 set the time period
  3. J

    Seeking a specific simulator...

    Multisim possibly? I don't know how long it has been around though. But either way you might like it. Maybe NL5, the author states he has used his program since the early 90's :)
  4. J

    Stop stealing things out of my truck!!!

    maybe it is someone you know?
  5. J

    Stop stealing things out of my truck!!!

    seeing as how this is your residence, you don't need to alert the thieves that you have installed a infra red trail camera pointed at your truck. Just don't leave anything in your truck as bait and you should be OK. Calling the cops won't do nothing, let the cops show up at their house with the...
  6. J

    Worlds smallest V12 engine

    BTW, this is not a diesel engine, it is air powered.
  7. J

    arduino is it all its cracked up to be?

    still need to pay for a programmer. Cost is hardly $1 to start. If you are new to programming then I would say go with the arduino till you learn its limitations. I paid $20 bucks for my arduino on ebay, cheap chinese knock off. If you are familiar with programming then by all means take cola's...
  8. J

    Nuclear Plant help

    needless to say, if they are not properly contained your local landfill would be more like chernobyl.
  9. J

    drag car traction control

    Actually I was watching Paul Tracy the other day on tv test racing a ferrari. One of those test was a drag race against a porsche, tracy lost. His excuse, he forgot to turn off traction control. Then they showed a replay from inside his car during take off, it was nothing to pretty. I think you...
  10. J

    Activate tiny RELAY by headphone jack?? (PLEASE HELP)

    the question that needs to be answered, does the signal on the jack need to do something other then turn on a relay?
  11. J

    Mork calling Orson, Come in Orson

    you probably should have signed up earlier, the google-ites are starting to arrive in droves
  12. J

    HelpAChinaMan.com

    I would really like to know what this has to do with electronics chat?
  13. J

    1/4-inch-to-1/8-inch plug adapter

    they sell a reducer at the shack. At the price you can buy one, I wouldn't be hacking up my more expensive cable. http://www.amazon.com/Recoton-CW1521-Audio-Stereo-Adapter/dp/B00006HOIW
  14. J

    MAKE: Electronics Ex. 10 Help Needed

    I have bought several transistors at radio shack. Never once got the shaft, but you do need to be careful. Other people are always stuffing the wrong parts back in the wrong bin. It is imperative that you always look at the number on the chip. All radio shack part bags are clear plastic. I have...
  15. J

    Helping hands with magnifier

    if you are looking for a helping hand, then I don't see how this little device is helpful. :(
  16. J

    Helping hands with magnifier

    I agree entirely. I bought the exact same one and the first thing I did was remove the iron holder. Useless. My magnifying glass (2x) with LED works well, but I don't use it on the helping hands. I use it to search through my parts bin.
  17. J

    Will we ever get waterproof electronics for us consumers?

    I always get the assumption that manufactures don't want to make waterproof electronics. For example a phone, you know how much money they would have lost if they made toilet proof phones in the past 5 years? This type of oversight, if you want to call it that, seems very deliberate and for a...
  18. J

    I need help with a project

    How old is your house panel? On older panels, like the FP I have right now in my house, it only has a specific section for two pole breakers. Do you have any room left in the panel box for a two pole breaker? On new panel boxes, you don't have to worry about this, as all adjacent slots in the...
  19. J

    How to connect electronic electricity system?

    oh yeah, :) good point!
  20. J

    How to connect electronic electricity system?

    The datasheet you linked to says the coil has a MAX rating of .45W you divide this buy the coil voltage 12V. .45W/12V = 0.037A roughly == 40mA needed from the arduino to drive the relay According to the information here 40mA is the max. You are literally right on the verge. Using a...
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