I once replaced some capacitors for high-quality ones, which were a little bigger, and there wasn't the space on the board to put them back, so I extended the leads. Solder a little piece of wire to them and put some heat-shrink isolation around it.
Also, if you extend them a longer distance, keep in mind some capacitors can only be placed in a certain way, ie. you can't switch the wires. In such cases better to use wire w different colors to keep in mind what's the + and - of the capacitor.
Yes you can but bear in mind that if you have really long leads fitted the capacitors will give unusual results in RF circuits of more then a few MHz due to the inductive effect of the wire leads.
Yes, but do not heat up the lead too long. Long than 5 seconds could damage its junction inside.
Of course you can.
I have some de-soldered capacitors that I want to reuse, but the leads they have are very small, since they were trimmed when soldered. Is it possible to solder some copper wire or some solder wire (or other kind of wire that works better) to extend the leads so that I can place the capacitors in a breadboard?
