Hey there everyone.
First post from a bit of an electronics newbie. Hope I'm not stepping on anyone's toes.
Anyhow, I bought a little plasma globe from Jaycar recently (the batter operated ones) and decied to plug it into a variable voltage transformer.
It worked, but it didn't produce as much arcing as other globes I've seen, so I thought I'd try increasing the voltage, which had an immediate effect. Great! I thought. 'I wonder what happens if I increase the voltage even more'.
Well, let me tell you what happens - you blow something in the circuit board is what happens.
I've tested the components in the circuit with a multimeter abd they seemed to check out. Resistors still had correct value, Caps were still non-conductive of DC current.
However, there is what looks like a transformer although it's not quite the square shape I'm used to. It has 4 small leads and 1 larger lead (earth?).
It seems to have gone open circuit as there is conductance between all 4 pins.
I'd like to replace it, but it has no markings on it.
Any ideas what I replace it with? I have no idea what the ball park ratio would be for these circuits. Is the size of the Tranny an indicator of possible ratios?
The Tranny is about1 inch long by 2/3 inch wide and has a weird lobed shape
I'll try and post a link to a pic of the tranny later on, if that helps.
Thanks
-Markus