[TenTec] Omni C + new Ham = Oops.

[Richards]

On 10/16/2013 2:25 AM, Ken Brown wrote:

>
> You want to get in, melt the solder, and wick it away quickly, and get
> out before you cause a lot of damage.

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	Amen, Bruddah.

Hard Lesson No 92874.
	
I learned that the hard way when replacing a faulty IC that came in my 
TT Model 1254 receiver kit.  TT sent me a replacement chip saying they 
had a lot of lousy chips, so that part was easy - but I used too small a 
conical tip, and heated the board too long removing the old part, 
damaging a couple of the solder pads.
	
I am lucky because a really good friend who builds prototype boards for 
exotic experimental weapon systems sorta owed me a favor from something 
I helped him with... 	systems.  He reworked the board, and fixed the 
damage as a return favor.  Next time, I suppose it will cost me a 
bottle of really good bourbon!  And that can get real expensive!

But everything said in his thread reminds me of what he told me.

I guess one of the take-away points is: MASS - it is all about mass and
a large enough tip will have enough mass to pass a lot of heat quickly.

I thought a smaller tip would mean I was confining the heat to a small, 
concentrated area - wrong - there was not enough heat to do the job 
quickly - so the the board suffered.

Lesson learned.   	

-----------------  K8JHR -------------------