Speakerguy
Active Member
Maybe, I dunno. I'll be buying another one and ripping it apart.
It was a dimming electronic NST, and operated at 20kHz for the bright and 40kHz for the dim. Splitting the difference, I guess. I forget the drive circuitry but IIRC it had two FETs and I think the low voltage secondary wires were for a feedback type thing. I'll but another and rip it open. I just ordered some 320W 24V and 12V switching supplies from Meanwell for this project, time to get some flybacks and ignition coils (though I think I will have much more luck with the flyback types).
FWIW I observed the behavior of the transformer as described above just driving it with the frequency generator directly. Its output voltage sagged a lot when I hit resonance even though the secondary voltage went way high. I don't know how it would behave with a low Z high current capable source.
It was a dimming electronic NST, and operated at 20kHz for the bright and 40kHz for the dim. Splitting the difference, I guess. I forget the drive circuitry but IIRC it had two FETs and I think the low voltage secondary wires were for a feedback type thing. I'll but another and rip it open. I just ordered some 320W 24V and 12V switching supplies from Meanwell for this project, time to get some flybacks and ignition coils (though I think I will have much more luck with the flyback types).
FWIW I observed the behavior of the transformer as described above just driving it with the frequency generator directly. Its output voltage sagged a lot when I hit resonance even though the secondary voltage went way high. I don't know how it would behave with a low Z high current capable source.
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