DIY WBO2 construction

A79coupe at aol.com A79coupe at aol.com
Thu Jan 17 18:29:13 GMT 2002 

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In a message dated Thu, 10 Jan 2002  3:12:36 PM Eastern Standard Time, 
Steve.Flanagan at VerizonWireless.com writes:

> Kao,
> 
> One thing I noticed was that you need to put D6,Q3 and D7,Q4 in thermal
> contact.  This means you need to mount the diodes about 1/4 inch elevated,
> and then bend the transistors (Q3,Q4) and the diodes (D6,D7) until they
> touch.  Q3 should touch D6, Q4 should touch D7, you can use heat sink
> compound to make sure you have good thermal contact.
> 
> There was a note on the schematic that mentioned thiS

I did not do this on my board.  What is the effect of skipping this?  Can I 
just heatsink these components, or do I need to disassemble and reassemble 
properly?



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<HTML><FONT FACE=arial,helvetica><FONT  SIZE=2>In a message dated Thu, 10 Jan 2002 &nbsp;3:12:36 PM Eastern Standard Time, Steve.Flanagan at VerizonWireless.com writes:
<BR>
<BR>&gt; Kao,
<BR>&gt; 
<BR>&gt; One thing I noticed was that you need to put D6,Q3 and D7,Q4 in thermal
<BR>&gt; contact. &nbsp;This means you need to mount the diodes about 1/4 inch elevated,
<BR>&gt; and then bend the transistors (Q3,Q4) and the diodes (D6,D7) until they
<BR>&gt; touch. &nbsp;Q3 should touch D6, Q4 should touch D7, you can use heat sink
<BR>&gt; compound to make sure you have good thermal contact.
<BR>&gt; 
<BR>&gt; There was a note on the schematic that mentioned thiS</FONT><FONT  COLOR="#000000" SIZE=3 FAMILY="SANSSERIF" FACE="Arial" LANG="0"></BLOCKQUOTE>
<BR></FONT><FONT  COLOR="#000000" SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">
<BR>I did not do this on my board. &nbsp;What is the effect of skipping this? &nbsp;Can I just heatsink these components, or do I need to disassemble and reassemble properly?
<BR>
<BR></FONT></HTML>

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