I don’t use the hot air to unsolder PA’s....only surface mount work.
I will use my chisel tip iron to do the melting and the vacuum desoldering gear
to pull away the puddle some times.
Cecil Acuff
Gulfport MS
K5DL
From: Mike Bryce
Sent: October 16, 2013 1:02 PM
To: Discussion of Ten-Tec Equipment
Subject: Re: [TenTec] Omni C + new Ham = Oops.
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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