Electronics What's an inverter: Cold cathode

Discussion in 'Modding' started by bee2643, 2 Apr 2002.

  1. viridius

    viridius What's a Dremel?

    Joined:
    7 Apr 2002
    Posts:
    364
    Likes Received:
    0
    I don't know. That stuff they supply with the CCFLs doesn't seem so insulated. Just take a look at the wire to your CRT and you'll see what I'm talking about. Call around to neon shops. They can probably sell/give you some wire rated for 9KV or more. Stranded wire is better for this applicaton for two reasons: It is more flexible and at higher frequencies can carry more current.
     
  2. bee2643

    bee2643 What's a Dremel?

    Joined:
    7 Mar 2002
    Posts:
    1,770
    Likes Received:
    1
    so cold cathodes actually use 9000volts? why is it that i see on the pcb of the inverter '96volts'
    ?
     
  3. KevinOwns

    KevinOwns What's a Dremel?

    Joined:
    13 Jan 2002
    Posts:
    276
    Likes Received:
    0
    People have said it didn't work with any wire but this Kynar stuff. Somebody on the forums had some and was selling it, unfortunatly there is no search function, but if you check back a little in this forum and find his post he may still be selling it.
     
  4. scoob8000

    scoob8000 Wheres my plasma cutter?

    Joined:
    17 Feb 2002
    Posts:
    1,947
    Likes Received:
    0
    yeah, that other thread is where i heard about the kynar wire, what it sounds like is, the insulation isnt that thick, but its made of some PTFE compound that is extremely dielectric.. i did obtain some wire rated 1k volts, but the insulation is so thick, flexable, yet thick.. its test probe stuff..
     
  5. Yo-DUH_87

    Yo-DUH_87 Who you calling tiny?

    Joined:
    6 Mar 2002
    Posts:
    3,712
    Likes Received:
    1
    I was talking about resistance, the bigger gauge wire, the less resistance. The stuff that comes with ccs isn't that big, or insulated. Just use regular wire, and if it melts, let us know before we try it :lol:

    Signing out...
     
  6. bee2643

    bee2643 What's a Dremel?

    Joined:
    7 Mar 2002
    Posts:
    1,770
    Likes Received:
    1
    k i tried it
    it doesnt melt, it does get warm, but the bulb doesnt light enough, just faintly at both ends
    i think that perhaps this silky smooth wire has a name for which i can better search it by?
    l337 cold caTHODE wire of SCiENCE isnt gonna cut it when i walk into radioshack, and/or my school :eek:
     
  7. KevinOwns

    KevinOwns What's a Dremel?

    Joined:
    13 Jan 2002
    Posts:
    276
    Likes Received:
    0
    Its called Kynar already! Only said it like 5 times in the last 3 posts ;)
     
  8. Yo-DUH_87

    Yo-DUH_87 Who you calling tiny?

    Joined:
    6 Mar 2002
    Posts:
    3,712
    Likes Received:
    1
    It's ok, we're just blind ;)

    Signing out...
     
  9. KevinOwns

    KevinOwns What's a Dremel?

    Joined:
    13 Jan 2002
    Posts:
    276
    Likes Received:
    0
    Hehe, yeah :lol:
     
  10. bee2643

    bee2643 What's a Dremel?

    Joined:
    7 Mar 2002
    Posts:
    1,770
    Likes Received:
    1
    i checked around at school today
    theres cheaper wire you can get for cars called ignition wire thats good up to 90,000 volts
    ignition wire baybee, ill sell it to whomever wants some cuz i got 72 feet of it in the garage :D
     
  11. cderalow

    cderalow bondage master!

    Joined:
    23 Jan 2002
    Posts:
    3,519
    Likes Received:
    0
    not true, i have a slim line cannon scanner that runs off USB solely... great thing...
     
  12. KevinOwns

    KevinOwns What's a Dremel?

    Joined:
    13 Jan 2002
    Posts:
    276
    Likes Received:
    0
    If it works I might be interested :) (Sounds like it should though)
     
  13. bee2643

    bee2643 What's a Dremel?

    Joined:
    7 Mar 2002
    Posts:
    1,770
    Likes Received:
    1
    allright, i will post back here in a few hours when i go and get some
    it comes in 1' - 1.5" intervals though keep in mind
     
  14. scoob8000

    scoob8000 Wheres my plasma cutter?

    Joined:
    17 Feb 2002
    Posts:
    1,947
    Likes Received:
    0
    ignition wire is spark plug wires.. ;P that shiz is hella thick! hehe

    im gonna hit up the local electrical supply shop tommorow.. Today i went to the local car audio place and asked, they have it for neons, but none extra to sell.. :(


    -scoob8000
     
  15. bee2643

    bee2643 What's a Dremel?

    Joined:
    7 Mar 2002
    Posts:
    1,770
    Likes Received:
    1
    ok its tested and it works for cold cathode, they come in lengths of 1foot possibly 2, its just under a cm thick, but im sure u can peel the insulation off and just wrap electrical tape around it?
    anyways, ill sell it to anyone interested, if u are email me
    cheap cheap
    u buy em 4 seperate 1' cables for $40 or $5CAND/cable
    i have a poopshoot full in the garage, if u want ends on it then tell me ;)
     
  16. UnLoadeD

    UnLoadeD What's a Dremel?

    Joined:
    2 Jan 2002
    Posts:
    865
    Likes Received:
    0
    You guys are killing me!:hehe: :hehe: :hehe:
    16-12awg wire, 1 cm spark plug wires, WOW
    I use 22awg solid core wire to extend the leads from inverter to bulb and havent had any troubles. And i've done over 50 of them. I've got some of that kynar wire from www.jameco.com its 30awg too thin to work with for me, so its just sitting around gathering dust, its also very hard to strip it, too small for my wire strippers. The post about the bulb just barely lighting on the ends,,,you've got a bad connection somewhere. Mostly likely culprits 1) check the plug where the bulb is plugged to inverter, usually white. Jiggle them around there and see if the bulb lights. If so what i usually do is desolder the socket from inverter and just solder the wires into the holes. 2) check the connections at each end of the bulb. If there is a bad one there, you can cut off the insulation very carefully with a razor knife, resolder and apply heatshrink.
    3) if you have any splices lengthening the bulb leads, check them (this should be #1 if you have them) 4) this will cause light to blink or not come on, so it prolly not causing a partially lit bulb. The connection where the power plugs to inverter. If this is the problem, fix it the same as #1 but make sure you get the right wire in right place (doesnt matter on the bulb/inverter connection).
    Well, hope this helps you guys.
     
  17. bee2643

    bee2643 What's a Dremel?

    Joined:
    7 Mar 2002
    Posts:
    1,770
    Likes Received:
    1
    omg unloaded, it weas barely lighting cuz i didnt plug it in at all! :sarcasm:
    hehehe, i checked everything its fine, yet when i use ignition wire it works:|
     
  18. scoob8000

    scoob8000 Wheres my plasma cutter?

    Joined:
    17 Feb 2002
    Posts:
    1,947
    Likes Received:
    0
    i tested out this little theory of normal old wire will work, i spliced in a 16ga peice of stranded rated at 600volts, the lamp lights fine, but in the dark you can see the wire glowing with the voltage radiating from it.. and you can feel a slight tingle if you touch it.. doesnt seem safe :(
     
  19. Yo-DUH_87

    Yo-DUH_87 Who you calling tiny?

    Joined:
    6 Mar 2002
    Posts:
    3,712
    Likes Received:
    1
    <sarcasim tome="heavy" smile=":lol:">Forget the cc, just buy some low-voltage wire and run it to a high voltage inverter! Just, don't touch :lol: </sarcasim>

    I would recomend using the wire that is rated for that much voltage.

    Signing out...
     
  20. viridius

    viridius What's a Dremel?

    Joined:
    7 Apr 2002
    Posts:
    364
    Likes Received:
    0
    The inverter must be putting out high-frequency current. At radio frequencies, insulation is less effective.
     

Share This Page