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Cathode mod problems

T

Techx

Supreme [H]ardness
Joined
Dec 30, 2002
Messages
4,380
Sup, I wanted to install my blue cathode on my desk, so what i did was splice in a much longer cable to it, but when i tested it only HALF of the cathode was lit, thats weird, what do you think that means? could i have reversed the wires when i spliced it?

thx
 
it means that you have a bad contact on either end of the glass bulb. Not on the actual 12 volt power cable
 
Originally posted by Techx
Sup, I wanted to install my blue cathode on my desk, so what i did was splice in a much longer cable to it, but when i tested it only HALF of the cathode was lit, thats weird, what do you think that means? could i have reversed the wires when i spliced it?

thx
Click to expand...
I bet you lengthened the high voltage wires from the inverter to the CCFL...
I had the same issue with the three CCFL's in my case.
Tried out different types of wiring cable, no succes...
Only solution: Put the inverter closer to the CCFL and lengthen the 12VDC cables to the inverter, not the HV cable.

CD :)
 
yeah from what i understand the HV lines carry crazy voltage but at low current so it dissipates easily....i think if you had some uber low resistance wires it would work. But as states its much easier to just extend the 12V DC lines rather than the HV output from the inverter.
 
you could extend the HV line but you need thicker wire (bigger wire = less resisstance) it's 22 guage so use 14 guage. but it's easier to extend the LV wire to the inverter instead though
 
Ok so i did as you guys suggested and spliced the wire from the molex to the inverter longer instead and that worked! But now i'm starting to think if this is a bad idea.. Like I said my original plan was to install the cathode on my desk as a light source, but with the inverter out in the open, and with nowhere to install the switch, maybe i shouldn't go through with it since there is a lot of volts going through it and that it's not really meant to be installed outside of a case... Hmmmmmmm
 
if it'a an enclosed inverter your fine. IE in a plastic box or shrinkwrap. if not get a radio$hack projecect box and mount it in that, you can also put your switch in that box.
 
Btw, Is there a way to somehow wire a CCL to feed of a wall unit, rather then a computers PSU?
I was thinking of putting Blue CCL's under my desk, for a glowing effect, but if it has to go to my computer, I'd rather just leave that out.
 
Just use a 12v ac adapter that plugs into your wall. I'm not sure about how much amperage you would need.

Cut off the plug on the adapter and wire it to your inverter.
 
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