[sdiy] voltage regulator insulation

Mike Beauchamp list at mikebeauchamp.com
Sun Jul 15 20:35:39 CEST 2012


If it helps,
Jameco has a to-220 mounting kit that includes a mica insulator and the
appropriate nuts, bolts and washers. Pretty cheap too..

Mike

On Sun, 2012-07-15 at 20:02 +0200, ToAd wrote:
> Hello Guys,
> 
> I'm currently building a +/-15V, 1A PSU for my  dual Mega Percussive 
> Synth and some other drum voices.
> I use an LM317 and LM337. I want to use the metal case as heatsink.
> Now I read somewhere that you need to put an insulation plate between 
> the metal case and the LM's.
> Is this really needed? What about the bolt that I'll use to hold the LM's?
> And where do I get this insulation plate? What kind of material is it?
> 
> And a related question, which ground do I connect the case with? Do I 
> use the DC ground or the mains ground.
> 
> Thanks a bunch for your help!
> 
> Cheers,
> ToAd
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