You want it to be really hot, so it should melt and look almost bubbly. Most silver items made in the UK are of "sterling silver" that is the silver content is Use stranded plastic-coated wire, single-core wire is not suitable unless the circuit is going to be permanently mounted in a box with no flexing of the wires. Repair jobs Repairing a blobby solder joint is a fairly easy fix. It requires less precision to work with than the needle tip, and will transfer more heat due to the larger contact area of the tip.
Alternatively, if it seems to take an inordinately long time for the solder to spread, this is another sign of possible dirt and that the joint may potentially be a dry one. Most stripboard circuits will need to have some tracks cut to break the connection at that point. Some versions might have a built-in digital temperature readout, and will have a control knob to enable you to vary the setting. Quickly remove the soldering iron and hone the wire very steady for two or three seconds until the solder solidifies. Soldering Solder needs a clean surface on which to adhere. For information about soldering irons and other tools please see the Tools page.
The tracks are cut with a special track cutter tool or a 3mm drill bit. Soldering is the process of joining two or more electronic parts together by melting solder around the connection. The advantages of the Panavises and Third Hands is that they can flex and rotate to any angle you wish and be bolted securely to your work surface. Remember to never touch the hot element or tip. There are four grades of silver solder hard, medium, easy and extra easy , which all come in strip form and have different melting temperatures. Keep a spray bottle of water handy to prevent this.
I have no idea why there are three lands for the negative wire but I suspect the light strip has three different brightness levels. Stripboard and copper printed circuit board will generally oxidise after a few months, especially if it has been fingerprinted, and the copper strips can be cleaned using an abrasive rubber block, like an aggressive eraser, to reveal fresh shiny copper underneath. The purpose of this test was to evaluate the necessity for chloride with the use of the organic amine. It may take one or two attempts to clean up a joint this way, but a small desoldering pump is an invaluable tool especially for PCB work. Any acid soluble compound or suitable salt may be used, alone or in combination.