I'm in the process of putting together an Elenco XP-720K bench power supply kit. The kit has 3 ICs and 1 transistor in T0-220 package format. The instructions have the builder bending the legs 90 degrees and then mounting the devices on the heat sink. This seems normal enough. However, to hook wires up to the devices, the instructions instruct the builder to tin the wire and solder it to the correct leg. The instructions are here:
Elenco XP-720K manual
To me, this approach seems likely to result in a fragile device. Is this a normal thing to do? I assume that there are connectors I could use. Would it be better to use connectors. Or can you suggest yet another approach? All suggestions are appreciated.