[Elecraft] Soldering PL-259s (WAS: Fw: RG-213 BNC connector)

[Bob Nielsen]

The continuity is made by the connector body shorting between the two  
shanks of the gun.  The connector is heated by the current flowing  
through it (P=I²R).  I found replacement tips for my ~50-year old  
Weller gun at Radio Shack about 5 years ago.

Bob, N7XY

On Nov 23, 2006, at 8:39 AM, Tom McCulloch wrote:

> Hi Stuart,
> Thanks for the tip (no pun intended) on taking off the tips from  
> the Weller gun.  Does electrical continuity need to be made between  
> the two shanks in order for the gun to heat up?
>
> Also does anyone know where to buy replacement tips for the Weller  
> Gun (actually mine is a radio Shack, but it looks the same).
>
> Thanks
> tom
> wb2qdg
> k2 1103
>
>
> So two atoms were walking down the street, when one of them  
> shouted, "Shoot, I just lost an electron!"  "Are you sure?" the  
> other one asked.  "Yes," he replied. "I'm positive."
>
> ----- Original Message ----- From: "Stuart Rohre"  
> <rohre at arlut.utexas.edu>
> To: "Bill W5WVO" <w5wvo at cybermesa.net>; <elecraft at mailman.qth.net>
> Sent: Wednesday, November 22, 2006 4:43 PM
> Subject: Re: [Elecraft] Soldering PL-259s (WAS: Fw: RG-213 BNC  
> connector)
>
>
>> If you have the 1950's style Weller or Wen Soldering guns that  
>> were about 100 watts, (some were more), you can take off the tips  
>> and use the shanks to butt up to the PL 259 type UHF inner shell,  
>> when you solder the little holes to the shield of the coax.
>>
>> You should pretin the shield where the holes are going to be over  
>> that area, to give something for the added solder wire to easily  
>> adhere to when it reaches the plastic, (Eutectic) state.  Get both  
>> shanks onto the shell near the hole you are soldering to rapidly  
>> heat up the shell.  Let the shell /hole edge melt the solder.
>>
>> Stuart
>> K5KVH
>>
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