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  1. Java_Az

    PTN04050CAD Laser Toner Transfer PCB

    So you leave pin 1 to pin 3 open no pot or resistor and just slap a 82K between pins 3 & 4 and that gives you 4.5 volts? Not really much more testing i can do till i get more resistors. All i have in the range i need are 10k 47k and 100k. Hope to make a order tomorrow when/if i get paid...
  2. Java_Az

    so, using this battery, thinking about a mod. Could use some tips.

    Yes it does have built in protection. but you still have the problem of a USB port is 5volts and that battery pack charges @ 8.4 volts. That usually means your going to need a source voltage of about 9 volts. USB charging is not really a good option for 7.4 volt battery packs. I am not saying it...
  3. Java_Az

    How to use this?

    Solder the 10k resistors in the holes I underlined in red
  4. Java_Az

    What are all of the different battery protection measures?

    Battery protection circuits do three things over voltage , under voltage protection and also they have over discharge protection. Meaning it the load /amps get to high protection will kick in. Besides vent holes the only other thing i can think of off hand is a fuse although that is really what...
  5. Java_Az

    PTN04050CAD Laser Toner Transfer PCB

    The 47k with a diode got me down to 3.67 volts under load Without the diode i got 4.5 volts . So the 47k would be a better choice for those who want a lower low end voltage. I might be making a digikey order tomorrow if my funds come threw . so maybe by Friday i can slap one together with all...
  6. Java_Az

    Interesting news for modders and a question

    Not sure where the video is exactly , besides in the forums somewhere. This was before they had even released the mod and it was in testing. Sorry i can't help anymore then that.
  7. Java_Az

    Interesting news for modders and a question

    I would have to say, I for one would absolutely positively never ever buy one of these regulators! Reason why is how they advertised them. I watched the video and the guy was saying there is no way to get a stable voltage off a variable voltage regulator. That the voltage would be all over the...
  8. Java_Az

    Idea: Car PV Mod

    Only thing i can say to watch out for is that you should make your design able to handle 14.5 volts. Not sure what the max input is for the reg you got but when a car is running and the battery is charging off the alternator your going to be seeing a voltage as high as 14.5 volts. Other then...
  9. Java_Az

    PTN04050CAD Laser Toner Transfer PCB

    Sorry guys got busy and havent had a chance to do the testing yet. Going to try to get it done this afternoon. If there is a place that sells small quanities here the states i cant find it. I am usually pretty good about finding stuff. Really not very easy to find by the gallon either. The...
  10. Java_Az

    Easy OKR-T VV mod

    Yeah first post is still valid , it will vape quite nicely. On another note digikey dropped the price of the 10 amp module to 10 bucks even. Figures right after i bought one last week. http://search.digikey.com/scripts/DkSearch/dksus.dll?vendor=0&keywords=OKR-T%2F10-W12-C
  11. Java_Az

    I call it..."My Mod" !!Warning...graphic intense!!

    Awesome, From the ground up to the Roof . Windows to the walls. There is one thing for damn sure. The FDA is not going to stop this man from vaping :) http://www.youtube.com/watch?v=sSh_Oc78A4o
  12. Java_Az

    What kind of classes should I take?

    Electronics would be a primary one. Although it does take more then just that. Electronics cover the inter workings of a mod but then you still have what are you going to slap the electronics in. So you have the case / enclosure to design or make also. Since there are a lot of options in what...
  13. Java_Az

    PTN04050CAD Laser Toner Transfer PCB

    The 10k resistor in line with the pot should keep the output below 7.2 volts according to the data sheet. I got 6.8 volts but that i believe is due to the " trick" the added 100k resistor to get the regulator to go below 5 volts. I guess a chart is in order for resistor values and how low you...
  14. Java_Az

    PTN04050CAD Laser Toner Transfer PCB

    resistance values are the same but i don't have a 200k pot. I used a 100k. From what i can tell from the data sheet the 200k would give you about .2 of a volt lower but it would also give the lowest voltage for 25% of the turning radius. To get the lowest voltage you need 147K ohms , with a 100K...
  15. Java_Az

    PTN04050CAD Laser Toner Transfer PCB

    It for sure works. without a diode i get 6.8 volts down to 4.85 volts. With a 2 amp diode i used because the 3 amp leads are too fat to stick in my bread board I got a low voltage of 4.1 volts. That's about as far as i got last night. going to change the resistor values around a bit today see...
  16. Java_Az

    PTN04050CAD Laser Toner Transfer PCB

    It is UV curable Ink. Same stuff the pros use. You would print out the solder mask page in the PDF on some transparencies put you ink on then line up the transparencies. Then hit it with some UV light. Not too many home board makers go to the trouble. Turned out to be harder then i thought it...
  17. Java_Az

    My First Pulse Width Modulator Mod

    It is really trial and error. too soon the ink will stick the the transparencies But even worse too long and it will cure threw the blacked out parts of the transparencies. If that happens this stuff is very hard to get off. Even paint remover wont take off when completely cured. So it is a...
  18. Java_Az

    Processor

    I got a 16x2 LEd for pretty cheap off ebay via the slow boat from china. It only took 9 days to get here. Mainly got it for the launch pad but was hoping to maybe get one in a mod. They are kinda on the big side though even if i switch out to a li po batteries i dont think i can fit it in my...
  19. Java_Az

    PTN04050CAD Laser Toner Transfer PCB

    Here is a pic of mine with some blue solder masking. Didnt have it quite lined up. But i think i got a way to get the soldering masking perfect every time. Going to drill and cut this thing out and solder everything up this afternoon and see what happens.
  20. Java_Az

    PTN04050CAD Laser Toner Transfer PCB

    Harbor Freight has some small drills sets for cheap. They have a metric and standard set. One is 3 bucks the other is 4. The metric is a better deal they give you lots of each size. Pretty hard to find locally other then that you might can check some local hobby shops. Unless you have a really...
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