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Old 12th August 2003, 01:26 AM   #1
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Unhappy HELP- with heatsink-amp connection

heres a pic of my eti amp,i need to fix it to this heatsink

it has 5 holes already in the bracket..only 2line up.

how many screws should i use? as many as possible

if i drill lots more holes,wont that reduce the amount of surface area contacting the heatsink..so how many?

should i use the existing 2,and drill 2 more,that makes it even.

or should i drill 4 more,making 6 screws in total


btw it doesnt need such a large heatsink,but later i might bridge it with another..

also im going to add some limiting transistors on output to stop it from drawing too much current.

<50watt into 8ohm amp class a/b>


also,should i smear heatsinking compound onto the bracket-heatsink face? it doesnt say to in the manual but it couldnt hurt if i have some left over.

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Old 12th August 2003, 01:33 AM   #2
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LOL....Mike your picture is so small that its hard to judge.....give us some dimensions....like Length of the heat sink

A good nominal figure would be every 3 inches or so and compound would be good also

a few holes wont decrease the effieciency any

Cheers!!The DIRT®
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Old 12th August 2003, 01:41 AM   #3
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Default dont u love tiny webcams

sorry :-P

there is already 5holes at about 27mm apart,but only the 2 end ones match up with heatsink..

about13cm long bracket and 30cm long heatsink

35mm long fins 10mm apart


should i put 2 screws each side near the transistors themselves,leaving none in the middle? or put 2 there too lol/.
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Old 12th August 2003, 01:44 AM   #4
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those 3 holes are where the drivers go thats all.

they dont need much heat dissipation do they?
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