Excellent information.
I also have used with great success a hot air reflow iron.
I didn't mention it because they are not usually found in too many ham shacks 
and they are dangerous to both the user and the thingiee they are trying to 
undersolder.
I have Hakko vacuum desoldering equipment in my shop, but for PA transistors, I 
prefer old fashion solder wick and the chisel point Weller iron.
mike, wb8vge
Mike Bryce, WB8VGE
 the heathkit shop
SunLight energy systems
J e e p
o|||||||o
On Oct 16, 2013, at 1:57 PM, <chacuff@cableone.net> wrote:
> In regards to the statement below, which is correct, one of he worst things 
> you can do is use too small of an iron.  It causes one to linger and twist 
> around on the connection trying to get the connection to melt and inevitably 
> damages the board.  It is much better to use high heat quickly. (within 
> reason of course)  I have good luck with high heat, and either a spring 
> loaded solder sucker or a vacuum desoldering iron sometimes augmented with 
> another iron at the same time.  The key is quickly.  Heat it till it fully 
> flows, pull the solder off and lift the lead all in about 3 to 5 seconds.  
> All of my soldering/desoldering gear is Hakko including a hot air rework 
> station.  On a job like the PA you need an iron/tip that has enough thermal 
> mass to deliver heat until the job is done.  Smaller iron/tip combinations 
> sink off the heat quickly and wilt on something like this.  The tip on the 
> iron I use for PA replacements is probably 1/4” wide.  Of course it’s used 
> more often on my tube type radio point to point work than PA’s but you get 
> the point.
> 
> 
> 
> Dental tools are handy too...for lifting leads.
> 
> 
> 
> Just my 2 cents worth...
> 
> 
> 
> Cecil Acuff
> Gulfport MS
> K5DL
> 
> 
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