[ARC5] Clearing solder from sockets and pins

Leslie Smith vk2bcu at operamail.com
Fri Sep 17 04:35:00 EDT 2010 

What about your BIG Webster dictionary, Henry?  Is it different from your pocket Websters?   Does the big one have pliers or pliars?  

Interestingly, one comment I found in a dictionary (or one observation) was that this word "plier" was associated with itinerant tradesmen - men who plied for work.  Maybe that word has an ancient association with travel, and then that became associated with a particular tool.  This happened with "footprints" - a cross between a pair of pliers, a stilson and a spanner.  This type of tool had the impress of a foot-print on it.  I digress.  Can we use a "footprint" to undo the screws on an Arc-5 set?  I think not.  I'm off topic.

Les


> ----- Original Message -----
> From: "Henry Mei'l's" <meils at get2net.dk>
> To: "Discussion of AN/ARC-5 military radio equipment." <arc5 at mailman.qth.net>
> Subject: Re: [ARC5] Clearing solder from sockets and pins
> Date: Fri, 17 Sep 2010 08:38:50 +0200
> 
> 
> My Webster Pocket Dictionary has it as "pliers."
> What do they look like in Nebraska?
> 
> 73   Henry, OZ1UF Cph. /ex K2UOC Bklyn.
> 
> 
> ----- Original Message -----
> From: <k0ng at windstream.net>
> To: "Discussion of AN/ARC-5 military radio equipment."
> <arc5 at mailman.qth.net>
> Sent: Friday, September 17, 2010 3:02 AM
> Subject: Re: [ARC5] Clearing solder from sockets and pins
> 
> 
> >
> >>>>>>> Hello Les: I agree completely with your de-soldering 
> >>>>>>> process. Only "over
> > here" (up here??) I believe we spell it "pliars". (but then I am 
> > a hill billy, HI)
> >
> > 73,  DE Charlie, K0NG EN10 Nebraska   ..
> >
> > ---- Leslie Smith <vk2bcu at operamail.com> wrote:
> >>
> >>
> >> Hello Ian:
> >>
> >> I have one or two command sets (ARC-5 or ARA) where the rear 
> >> panel socket has been filled with solder.  You asked about 
> >> removing the solder to restore the socket.
> >>
> >> I use a 60 watt good quality iron, solder wick (de-soldering 
> >> braid) and a needle nose plier.  (I may use pliers - I don't 
> >> know the correct form for this noun.  Perhaps each arm of the 
> >> device I use is one plier, and together I have a pair of pliers. 
> >>  I digress ...)  Also a tiny quantity of solder (resin core - of 
> >> course).
> >>
> >>
> >> I set the temperature of the iron to 350 to 360 degrees C. (Best 
> >> science & metric units in use bere!)
> >>
> >> I use braid and solder to wet the solder in the socket.  I get 
> >> enought heat into the solder inside the socket to melt it.  
> >> Althought a higher temperature means more heat, it reduces the 
> >> overall time for the process : so more heat, but a shorter time.
> >>
> >> Next I use the pliers to feed the braid into the socket.  This 
> >> draws a good part of the now-melted solder into the braid.  
> >> Removing the braid leaves a partly clear socket hole.
> >>
> >> I repeat this a number of times (taking care to keep the socket 
> >> hot, but not over-heated).  Then, at the end, I feed in enough 
> >> fresh braid to fill the socket.  I twist it with the pliers 
> >> before removing it, quite quickly.  This last action tends to 
> >> wipe the inside of the socket clean.
> >>
> >> Sometime soon I plan to fit a 2.50mm drill to a tapping handle 
> >> to clear the last bit of solder.  The socket is 1/10 inch, or 
> >> 2.54 mm, so I should have 4 thou (or mils) clearance.  I haven't 
> >> done this yet.  I wouldn't use an electric drill to spin the 
> >> drill bit - I think that process may "rip" the socket.
> >>
> >> I read once about a technique to clear sockets by melting the 
> >> solder and using compressed air to blow away the molten solder.  
> >> This is a certain way to blind one-self - even using glasses or 
> >> a mask.  If the blinding doesn't happen at first, it will soon 
> >> enough.  Old hands will not need such advice.  I trust young 
> >> hands NEVER do this.  Blindness aside, this technique spreads 
> >> molten solder everywhere, including under the chassis and 
> >> amongst the wiring of the not-so-soon to be repaired set.  NO! 
> >> NOT! NEVER! DON'T.
> >>
> >> I use de-soldering braid to remove unwanted solder from the 3 
> >> upright genemotor pins.  With the help of a friend, apply heat 
> >> to the pin, wire and offending solder.  Remove the wire to leave 
> >> a pin with a blob of solder on it.  Then take a strip of braid 
> >> and get it hot enough to melt solder.  While hot pull the strip 
> >> to and fro around the pin.  The braid will absorb the solder, 
> >> leaving a relatively clean pin.  If possible, avoid filing the 
> >> pin, as this removes the protective plating material on the pin.
> >>
> >> Describing this is rather like explaining how to tie a shoelace.
> >> It's easier to do than explain!
> >>
> >> Hope this helps.
> >> Let me know how you get on!
> >>
> >> Les
> >> ex VK2BCU
> >> VK2BCU "at" OperaMail dot com
> >>
> >> > ----- Original Message -----
> >> > From: Ian Wilson <ianmwilson73 at gmail.com>
> >> > To: "Discussion of AN/ARC-5 military radio equipment." > 
> >> <arc5 at mailman.qth.net>
> >> > Subject: Re: [ARC5] (1) Hacking Sets (2) Saving Sets
> >> > Date: Wed, 15 Sep 2010 22:48:58 -0700
> >> >
> >> >
> >> > Hi Les,
> >> >
> >> > Thank you for a thoughtful post.
> >> >
> >> > Could you share your technique for removing solder from the rear
> >> > connector (if it was in the original post, I apologize; didn't see it).
> >> >
> >> > 73, ian K3IMW
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