[Kenwood] there is no such thing as a stupid question

[KD5NWA]

The purpose of the zinc oxide is to create a 100% contact area 
between the transistor and the heat sink so you get maximum heat 
transfer. In order to do that you apply the compound on both sides of 
the mica so there are no air pockets between the mica and the 
transistor, and the mica and the heat sink.

At 05:17 PM 7/26/2005, Richard Keller wrote:
>Ok guys, don't chuckle, remember I am an OT. I am replacing
>a couple transistors that require the mica insulators and
>heatsink compound. My question is this: do you apply the
>heatsink grease on both sides of the insulator or just
>against the heatsink?
>
>I have done this many times with regulators but they use a
>case ground, and lots of transistors where no heatsink is
>required. My huge library of books never mentions this
>situation except in generalities, no specifics.
>
>Thanks and listening for the chuckles anyway. Hi,Hi
>73, Dick KF4NS
>St. Petersburg, FL 33714 USA
>Keep the glow!
>
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Cecil Bayona
KD5NWA
www.qrpradio.com

'Never argue with an idiot. They drag you down to their level then 
beat you with experience.'