ARE HEATSINKS (AMP CASES) NEEDED??? help me plz and thank u!!

[stillfly45 10+ year member]

I am thinking about buying a RF amplifier board. I was going to use it as an amp for my computer speakers.

My question is can power and play an amp board without a heatsink with no problems?

And if i cant where can i buy cheap heatsinks?

thanks

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[ThatChevyGuy 5,000+ posts]

no and i dont know.

 

[stillfly45 10+ year member]

any1 else?

 

[jco1385 5,000+ posts]

just get some flat aluminum bar (same as a bus bar basically) and mount it to that. the FETs will need something to dissipate the heat

 

[stillfly45 10+ year member]

just get some flat aluminum bar (same as a bus bar basically) and mount it to that. the FETs will need something to dissipate the heat

the is only 100 watts RMS, and its going to be ran at 8 ohms bridged so it cant get that hot...

Where can i buy aluminum bar??

 

[Cabin_Pressure 10+ year member]

This forum amazes me more every day.

 

[stillfly45 10+ year member]

bump the auction ends in an hour //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif//content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

 

[Crzy 10+ year member]

mod some cheap/old computer heatsinks laying around and im sure you wont have a problem

never did it myself though

 

[jco1385 5,000+ posts]

how do you plan to power this anyhowz

 

[sundownz Pro Seller]

If you use aluminum bar make sure you get something to insulate the FETs from the bar or it will explode immediately.

 

[SplMonty]

If you use aluminum bar make sure you get something to insulate the FETs from the bar or it will explode immediately.

that would be very exciting

 

[jco1385 5,000+ posts]

oh shit. i didn't know that.

thats why there is white stuff on the heatsink eh

 

[sundownz Pro Seller]

oh shit. i didn't know that.
thats why there is white stuff on the heatsink eh

White stuff AND some sort of insulator - like a strip of tape looking stuff to be non-technical. Some amps use a clear or amber colored "plastic" material (can be Kapton or another polymer).

 

[jco1385 5,000+ posts]

my MTX has the tape stuff. i did not know they can has blow up. thats cool to know.

 

[Saint211 10+ year member]

How large is the board? I have a small complete piece of aluminum heatsink stock as well as fet clips and silicon insulating pads that I may sell.