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  1. chopnhack

    Taking some time off

    Enjoy your time off shrtrnd! Merry Christmas and Happy New Years to you :)
  2. chopnhack

    Designing a Time Delayed Relay

    Ok, glad we are all on the same page, LOL the parts should be in tomorrow, then final layout check and board submission - woohoo!! :D
  3. chopnhack

    Designing a Time Delayed Relay

    Ok mates, I think I followed you all, but to be sure - Is the fuse I intend to place inline with the mains to the transformer adequate? It will not be directly on board the pcb for space constraints. It will fuse entering mains before the 3 pin on board header, so technically the entire board is...
  4. chopnhack

    Designing a Time Delayed Relay

    Ah, so we should be ok since our fuse is 160mA?
  5. chopnhack

    Designing a Time Delayed Relay

    Thanks Adam, I was not aware that it was done that way. I was going to use http://smart-prototyping.com/ will this matter much considering the small amount of power being used? (under 200 mA)
  6. chopnhack

    From batteries to Wall power supply

    Your teacher raises a good point. Do you have a multimeter? Does your AC adapter have a ratings label giving amperage and voltage?
  7. chopnhack

    Designing a Time Delayed Relay

    Hi Adam, I haven't the slightest clue with regard to the copper question - I had assumed that selecting a 2oz. option gives you a 2oz. copper base. Do you have information to the contrary? Thanks!
  8. chopnhack

    Refrigerator Not cooling

    Does the compressor run continuously, or does it seem to cycle on and off? If cycling, how long does it stay on/off?
  9. chopnhack

    From batteries to Wall power supply

    If you can determine which lead is + and which is -, then it really is simply just a matter of cutting the jack off of the adapter and connecting the wire to the battery posts. If you can get a diode, as KJ6EAD mentions, it will provide a small voltage drop and allow you to recycle some unused...
  10. chopnhack

    3 watt LED mounting..

    Give it a go! LOL - If I recall correctly the JB Weld has steel in it so it may be somewhat conductive.
  11. chopnhack

    From batteries to Wall power supply

    Hi Casper and welcome to the forum! The Minecraft torch is a neat touch for your room :) Denmark, home of Volbeat LOL ;) To your question, yes, you would need an AC adapter to reduce your mains down to the 4.5V DC that the torch uses. When you get the torch open the battery compartment and...
  12. chopnhack

    PCB Cleaning after Soldering

    Interesting, I had not thought of using that as a solvent - I thought it would leave a oily residue for some reason... Again, good point, especially since I have vias all over the intended board! Thanks again. I have read 170F was a good temp, any information from your experience?
  13. chopnhack

    Resistor Question

    Sounds great, good luck!
  14. chopnhack

    Resistor Question

    No, I don't think that would work... See if this makes it clearer, the resistor needs to be in line with the LED's short leg (cathode), the other end of the resistor touches the negative power rail. The long leg of the LED (anode) needs to touch the positive rail.
  15. chopnhack

    Designing a Time Delayed Relay

    You're awesome Adam! Good eye too, 0.41mm. The circuit would use a max of 120mA current per Kris's calculations. I get what you are saying - didn't think of that before, if the circuit should experience some type of failure, the trace would act as a fuse - this has happened to me in the past, I...
  16. chopnhack

    Resistor Question

    You would need to use a 100Ω, 1/4 watt resistor with each LED. In other words, you would wire the resistor in series with the short leg of the LED to the negative rail for every LED at each level. The long leg of the LED gets wired to the positive rail for each LED at each level. The red and...
  17. chopnhack

    Resistor Question

    You might want to create a ring of wire at each level then, one for positive and one for negative, effectively separate them and then you could directly bend the LED's leads and tack them in place with a bit of solder or twist them. The positive rings would then have to be connected at each...
  18. chopnhack

    PCB Cleaning after Soldering

    Awesome, thanks for the input - low temp oven would easily and quickly evaporate the alcohol, good thinking :)
  19. chopnhack

    Designing a Time Delayed Relay

    Thank you hevans! I appreciate the kudos and positive feedback. It has been some time since I started this thread! LOL, but its been a great learning experience. So many have been very informative and guiding along the way that without, I am sure I would have gotten lost or discouraged, many...
  20. chopnhack

    Resistor Question

    Not knowing your exact layout, I threw this together. It is 30 LED's - only the visible cubes get an LED (and one for the star at the top ;)) 30 LED's would have to be wired in parallel to work with a 5v source. Doing so, you would need to wire a 100Ω 1/4w resistor in parallel with your voltage...
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