where to look for cases

[roofingboom]

so i have been working on some amps and i am having a hard time finding cases for amps
i was wondering what places you guys use to get like a plain case for an home or car amps
i would like all ideas posted so that i can take a look at where to get cases
thanks alot
nathan

 

[roofingboom]

oh yea forgot to ask this but what the hell does everyone use to isolate transistors from heatsinks so they dont short out
i know what i need but dont know where to get it
is there like some cheap household alternatives or what do people mainly use out in the home audo do it you selfers

 

[traderbam]

You can get most stuff from here: farnell
I've never heard of anyone using anything homebrew for transistor isolation. Mica washers with silicon grease or thermally conductive rubber washers are pretty cheap.
Avoid cling-film (saranwrap?) as it is unreliable, as it is in certain other applications

 

[roofingboom]

i went to farnell.com and you cant see any products what up with that?
also where do you get these washers and grease at a reasonable price

 

[classd4sure]

Hi,

Have you tried the usual ones like say...digikey....mouser....etc?

 

[traderbam]

Sorry - try:

washers

This shows what you need to buy. You need to contact farnell US to get them if you are in the US. But I suspect any electronics components dealer will have them.

 

[jaycee]

Any component dealer in the US dealing in power transistors will have at least Mica washers. I prefer Sil-Pads for flatpack transistors which I get out of old PC PSU's, as they require no thermal grease or mess.

You can get really good things out of old PC PSU's, such as line filter chokes, heatsinks, diode bridges, small signal transistors, resistors, capacitors, MOVs, the works They are definately worth keeping if they blow up.