As far a soldering tools go, to me, all Hams or electronic tech should own a 
Weller WP35  iron & 8200 gun. Both are about $45.00, tips are cheap, easy to 
get. The combo will solder just about any connection you have. Hakko  soldering 
equipment ( both soldering & desoldering ) are great, but if you are not doing 
bench repairs or SMD repairs (the WP35 does good on older discreet devices ) 
are an expensive over kill. Both the WP35 & 8200 are easy to carry in the 
field. ( I have both in my service truck ) and you can get a assortment of tips 
for both. You can even make the tips for the 8200. Use name brand solder, some 
cheap solder will not flow well without excessive heat. A bottle of liquid 
rosin will really help in help in joints you want to limit the heat. Also, buy 
a can of flux remover, to clean the flux off your joint. Flux can absorb 
moisture an cause corrosion.  Dr Carlson’s Lab on You Tube has a good video on 
soldering   Robert KD5YVQ

 

 

From: BVARC <[email protected]> On Behalf Of Jonathan Guthrie via BVARC
Sent: Thursday, July 30, 2020 10:18 PM
To: Martin Blaise via BVARC <[email protected]>
Cc: Jonathan Guthrie <[email protected]>
Subject: Re: [BVARC] Best solder

 

The best solder?  It doesn't matter.  I use some cheap stuff I bought at Radio 
Shack in the 1980's.  You can use lead-free, if you want, but I don't 
personally have any that's not ultra fine so getting enough solder in the joint 
is a problem.

 

What matters is the iron.

 

You need to use iron that's a honking big piece of metal.  You see, when you 
touch the iron to the connector, it acts like a big heat sink, and the 
temperature of the iron drops below the temperature of the solder.  You have to 
wait for it to heat up again, and the heat conducts into the center insulation, 
melting it and ruining the coax.  If you don't hold it on long enough to melt 
the insulation, you don't get the connector hot enough to be wetted by the 
solder.  It'll kind of work because there's some mechanical connection, but 
it's not really good.

 

Using a big iron makes it easy.  I got one of those that is used to solder 
stained glass, and it works all kinds of better for me than anything else I've 
ever tried.  Including my temperature-controlled soldering station with the 
biggest tip I can get for it.

 

On 7/30/20 6:12 PM, Martin Blaise via BVARC wrote:

Just curious what is the best solder you have used on pl259 connectors? I ran 
out and can’t remember exactly what kind it was.





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Jonathan Guthrie
ARS KA8KPN
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