Usually an alloy of tin/lead - though there are others (silver for example, used in repairing jewellery)
Clean and tinned with melted solder
Solder has a relatively low melting point, and it wets many different metals allowing it to be used to join (solder) them together. It is also fairly resistant to corrosion when the correct solder alloy is applied to the work. We see a lot of solder used in electrical and electrical applications, so it's a fairly good electrical conductor.
A soldering iron should work if it is able to get hot enough and you have the right kind of solder. You need a solder that is made for electetonics. If you have an acid core or one used for plumbing they will not work. The iron will need to produce enough heat to get the item soldered hot enough for the solder to flow and bond.
Tin and Lead-based solder. I have noi further information. there are different alloys with differing melting points. Acid-Core solder is NOT used in electronics work.
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the load
Most likely here is a short (lose wire) somewhere in thecircuit that needs to be restored. If you find it only use solder made for electrical equipment. Regular metal solder is different and not suitable for this repair.
If it's an electronic dash, then dry solder joints are possible, (Happened to my 1988 pintara) look for a hairline crack around any solder joint. Fix by simply soldering over the joint. (Make sure you use electrical solder and iron.)
Electrical engineers use logarithms to work on signal Decay.
Solder is a lead alloy with tin. Different mixes have different melting points, and for some work, silver is also added. Sometimes for electronic work, solder is presented in the form of a wire with several cores of rosin inside it. This was first made as a large billet of solder - the size of a pot - in which several holes were drilled and filled with rosin. The solder is then drawn out in a series of rollers in the same way that other wires are made from a billet of metal. The function of the rosin is to clean the surface of the metals to be joined, so the solder may easily adhere. For plumbing use, acid cores are used, but these should never be used in electronics. yo momma!:)
"Solder" can be a noun or a verb. The following sentences provide examples of both:You should use lead-free solder for work on kitchen plumbing fixtures.I got Ben to show me how to solder the electronic components in the kit.
Solder has traditionally been a tin lead alloy, but there are many variations depending on the application:jeweler's solder or silver solder, has always contained silver to prevent the solder from dissolving silver and/or gold from the item being solderedother low melting point metals are sometimes added to make low melting point solderpure tin solder is sometimes used to eliminate toxic leadetc.Solder sold in the form of wire is sometimes hollow with a core filled with flux paste to make soldering easier without the need for extensive precleaning of the work so that the solder properly wets. For plumbing purposes (where the work can be rinsed afterwords) the flux paste is acidic and very corrosive, for electronics work the flux paste is a rosin.