It will help to supress the whining noises they produce in the radio bands. Keep the capacitor wires as short as possible. If you are using it to power radio equipment I suggest you add a ceramic 100nF capacitor across the output terminals and 100nF ceramic capacitors from each of the PSU output posts to a ground screw on the case nearby to them. These modules do produce a small amount of radio interference due to the way they work. That will conduct much of the heat away without risk of shorting anything out. Place a heat conductive pad under the module so the tracks don't short against the PSU metalwork. I suggest removing the transistor from the back of the PSU, drilling four new mounting holes to match those on the module then fixing it to the case with plastic (Nylon) screws. At the rated output current (if the transformer can supply it!) the module will run VERY hot. It should work fine but I strongly advise you to add extra heat sinking. I tracked it down from the description and photograph though. ![]() ![]() That Ebay number doesn't work here in Europe, even if I use the Canada site.
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