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- Cold Cathode or Fluro Tube?
January 31, 2006, 5:30 am
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Recieved a back-lit item today that is all well and good, but on looking
inside it (the PCB was loose and rattlin, had to re-secure) I found a rather
curious white light tube .. Dunno if its CCFL or Fluro, just wondering if
anyone knows a source for similar tubes to these and their driver circuits?
And even a possible cost? Curious into looking into making my own signs like
the one I recieved today :)
Re: Cold Cathode or Fluro Tube?
Seems to have four wires to the tube which would make it an ordinary fluoro
with an electronic ballast. It would have two wires to the tube if it were
cold cathode, I think. The circuitry inside a compact fluorescent lamp is
similar to what's in your photo. The circuit board from an Osram compact
fluorescent that I accidentally smashed can run a normal fluorescent lamp
quite nicely, though it would not be a good idea to sell something like
that because it would be difficult to ensure that it complies with the
safety regulations in its modified form. You could buy something like an
Osram Quicktronic ballast they seem very good but quite expensive (except
on ebay where they might be the opposite on both counts).