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RE: replaced diodes/caps in power supply?

Well, your Crees have a lower impedance than the 1N5408 which causes the transformer to have higher current spikes. Adding a 50 ohm resistor right after the diode will fix it.

I don't usually like using 500uf caps as they are kind of like band aids. A better power supply can be made with a couple of 60 to 100 uf caps and a decent choke. I can understand why the manufacturer used the big caps as they are a cheaper way to make the background noise lower.


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