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My poorvari mod

Discussion in 'Battery Mods' started by donptal, May 19, 2011.

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  1. donptal

    donptal Full Member

    I just like to share my cheapest variable voltage mod open for comments and suggestions from expert modders here in ecf.

    Schematic

    [​IMG]

    guide

    Note: The lm350T must be heat sinked to work properly.

    [​IMG]


    front view finish pv

    [​IMG]

    The pv cost me 500 Philippine peso, equivalent to about 12 dollars. Considering that it is variable, its really a bang for a buck! My target here is to make a pv cheaper or equal to the cost of my atty that's why I did not put digital display or use expensive switch with it.
     

    Attached Files:

  2. dordas23

    dordas23 Senior Member Verified Member ECF Veteran

    Jul 7, 2010
    Maryland
    Wow! A great, low-cost mod. Way to go, donptal!
     
  3. donptal

    donptal Full Member

    Thanks dordas23, I'm using it now and giving it some stress test. I'm quite satisfied with its performance so far and considering its cost, I'm very happy to be the first to have it here in my country where most variable pv can only be purchased abroad and too expensive. I set my lowest voltage to be 3.6 and my highest to be 6.4 by using res.1 and 2. Just enough for me to enjoy my lr and regular atty. A fellow vaper also tested this with his hv atty and it also works fine. We can drop down our lowest vaping voltage by lowering the value of your res. 2.
     
  4. Dalton63841

    Dalton63841 Moved On

    Feb 14, 2011
    Maine
    Very nice! Will be building this very soon.
     
  5. eyebrook

    eyebrook Ultra Member ECF Veteran

    Mar 7, 2011
    England now Spain
    Its very good,and its simple as well ,Good work
     
  6. iambalta

    iambalta Full Member Verified Member

    Aug 7, 2010
    Philippines
    finally i found you here in ecf.. ive tested his unit, it was cool :)
     
  7. eyebrook

    eyebrook Ultra Member ECF Veteran

    Mar 7, 2011
    England now Spain
    you lost me lol what do you mean?
     
  8. donptal

    donptal Full Member

    @ dalton

    Looking forward for your own version of this sir and its an honor for me to see it posted here.

    @ eyebrook
    About iambalta's post, you see we have our local ecf in the Philippines which is PVF (Pinoy Vapers Forum ). I also posts my mods there and probably, he have tested my previous mod before.

    @ iambalta

    Hi bro., may I know who you are in PVF? I focused too much in PVF not considering to post any of my mods here in ecf till now. I also posted this poorvari mod in PVF but up to now, nobody seems to make their own of this that's why I decided to post it here. Maybe somebody here will be interested in doing this. Or at least make comment for its improvement.

    My first variable voltage mod is a rendition of evercool, and its a hell of a pv my hats off to bigblue. I like it very much! But ptr is very expensive to have here in the Philippines and its harder to get it here as a sample. So I decided to make my own variable pv, the cheapest way i can.
     
  9. Dalton63841

    Dalton63841 Moved On

    Feb 14, 2011
    Maine
    I myself don't know electronics of this scale that well. I'm a computer geek by trade though, and am very good at "reverse-engineering" how things work. I just finished a box mod of this, and it works very nicely.

    However I had the misfortune of the "Adj" leg of the regulator snapping off! However I learned something kinda cool tonight. The only other regulator I had is a 7805 5v reg, so I gave it a try, using the ground leg as the "Adj" leg, and IT worked! I don't really count on it working too long, as the 7805 is a bad one to use in the first place, but it should get me by till I can buy another adjustable reg. Nice to be vaping 6v again! 5v was good, but this is much nicer.
     
  10. donptal

    donptal Full Member

    Wow dalton! You mean you already made your version of this? That was fast, I just posted this yesterday. I'm enjoying mine now using lr 510 atty and it is great considering that I can adjust my voltage and made this real cheap. Will you be so kind and post picture?
     
  11. Codyh

    Codyh Senior Member Verified Member ECF Veteran

    this is awesome found 10 of the regulators for 7 bucks + shipping on ebay !!! Looks like It's time to start work on mine !
     
  12. Dalton63841

    Dalton63841 Moved On

    Feb 14, 2011
    Maine
    Bear in mind this is just a rough draft to see how well it works and stuff, so its kinda thrown together.
    [​IMG]
    [​IMG]
    As you can see, it works quite well. My face is somewhere behind all that vapor.
    [​IMG]
     
  13. donptal

    donptal Full Member

    Good luck codyh! I believe that this is the cheapest variable pv mod around, and frying a regulator is not much of a hurt in the pocket. I've experience frying ptw regulator before and really felt bad about it. Though this is not comparable to the performance of ptw, its worth modding for beginner. This is the cheapest way to go in doing variable.
     
  14. donptal

    donptal Full Member

    Wow dalton! Now I know how handsome you are with poorvari lol.

    [​IMG]
     
  15. eyebrook

    eyebrook Ultra Member ECF Veteran

    Mar 7, 2011
    England now Spain
    hey Domptal and others you guys are good keep up the good work and keep posting
     
  16. donptal

    donptal Full Member

    Its your turn eyebrook, make your own.
     
  17. eyebrook

    eyebrook Ultra Member ECF Veteran

    Mar 7, 2011
    England now Spain
    with my hands lol I dont think so, got RA here but like to see whats going on with mods
     
  18. donptal

    donptal Full Member

    This is how mine vapes



    My battery could last me for only a day, unlike my ptw mod that last me a day and a half.
     
  19. Dalton63841

    Dalton63841 Moved On

    Feb 14, 2011
    Maine
    LOL I am not having much luck with this one. I finally got the proper regulator and resistors, wired it up, and the knob popped off the POT. I'll get a replacement for it soon. For now I have it wired straight according to your diagram, and it's putting out a nicely regulated 3.5v, which is making my bridgeless LR atties taste pretty good.
     
  20. donptal

    donptal Full Member

    Sorry about that Dalton! But if you can make it function at 3.5, it is a good to go for lr atty. Actually, I'm using mine now with lr 510 and enjoying it @ 3.6. I just put an add on to it by making a side/button feeder. I don't know if anyone have modded this kind of feeding system before here in ecf. My feeder feeds the juice to the side of the juice catch for me to sip it to my atty through the 4 tiny holes of the connector.

    [​IMG]

    [​IMG]
     
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