Whats the thing connected to the heatsink on a amplifier or a hifi stereo? ?

zqert988

Member
Power output transistor.

http://www.germes-online.com/direct/dbimage/50284137/Power_Transistor.jpg

Or

http://www.goldmine-elec-products.com/images/G13076B.jpg
 

DavidW

Member
It's probably the final amplifier, and it's on the heat sink because it gets hot. It gets hot because a lot of electrical power passes through it.
 
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