Modding cathode dimmer

Discussion in 'Modding' started by Mettallian, 24 Sep 2002.

  1. Mettallian

    Mettallian What's a Dremel?

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    does anybody know, can i put a rheostat on my cathode to dim it without damaging the cathode?:idea:
     
  2. Tribal Dragon

    Tribal Dragon Insomniac modder!

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    Last edited: 25 Sep 2002
  3. Mettallian

    Mettallian What's a Dremel?

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    thanks

    ya i thought it would be ok. i have seen the throbber in action so i thought i could doi t with a rheo just wanted clarification. thanks
     
  4. Tribal Dragon

    Tribal Dragon Insomniac modder!

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    oh yeah, just a little hint so you don't freak out..

    IF you ever see you ccfl flashing when your dimmer is on, or if the cc just light at full power, etc..., your dimmer is your problem, make a new one.

    happened to me so:D
     
  5. Mettallian

    Mettallian What's a Dremel?

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    all icould find at radio shack was a 25 ohm rheo rated for 3-5 watts. what do ya think will it do the trick?:eyebrow:
     
  6. Tribal Dragon

    Tribal Dragon Insomniac modder!

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    25 ohms?....

    forget it.

    you need something between 750-1000 ohms

    otherwise it won't work...
     
  7. Mettallian

    Mettallian What's a Dremel?

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    i was afraid of that. i'll have to special order one i guess. we are talkin about a mechanical rheostat like the ones used to control the fans yes?
     
  8. Tribal Dragon

    Tribal Dragon Insomniac modder!

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    it's a potentiometer that you need...

    the difference is that rheostat are 25k+ or something like that...

    I used a 1k pot 1/4 watt.
    the hard thing is to get one with a shaft...

    but that's what you need.

    check in your local electronics shops, they'll have them.
     
  9. jq3k

    jq3k What's a Dremel?

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    will that work for 12v neons too?
     
  10. Mettallian

    Mettallian What's a Dremel?

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    my trouble is that i'm using a cathode under my case and it's to bright. i tried glow wire but that was to dim, so i can't make the wire brighter so i'll make the cathode dimmer. once i set it i won't change it so it'll be ok. so all i need is a pot between the cathode and the switch? does it go infront of the little transformer thingy or behind it?:eyebrow:
     
  11. Tribal Dragon

    Tribal Dragon Insomniac modder!

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    jq3k: it will work since ccfls are 12v too;)

    Mettallian: here's how you do... you take the switch out and put the pot

    here's the dimmer. they usually have 3 legs... mine have 5 since it have a switch in it. OFF->ON and dimming
    [​IMG]

    and here's the cc. both end where the switch was are used for the dimmer. Pots doesn't have polarity.
    [​IMG]

    hope that helps
     

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