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kubeek

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Most Helpful Member
Why is there a poll with nonsense options?
Regarding the circuit,what transistor are you using and what is the input voltage? Polarity of the transformer?
 

alec_t

Well-Known Member
Most Helpful Member
Success or failure depends greatly on the transformer design/characteristics. Something of a black art. That's why most people choose to buy an off-the-shelf switch-mode power supply rather than try to build their own.
 
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