Is the Collin in "Collin's Lab" the same as our Collin? For a modern version of breadboard building technique, look up "ugly construction" and "manhatten construction" The "nails" in ugly construction are the power supply decoupling capacitors. These are superior construction techniques, but you can't use them to slice bread on.
Go to a local radio/telephone/electronics museum and look at the beautifully built stuff from 70 to 120 years ago. Most of it on wood. Tubes (valve) use high voltages, radio transmitters very high voltages and currents.
Use indoor aged hardwoods. The grain is tighter, threrefore less moisture in the wood.
I would use brass nails (maybee the wood pre-drilled as they bend easily). Brass solders easily. Avoid copper wire, it tarnishes and could be difficult to solder after a while. Use tin or silver plated wire.
Go to a local radio/telephone/electronics museum and look at the beautifully built stuff from 70 to 120 years ago. Most of it on wood. Tubes (valve) use high voltages, radio transmitters very high voltages and currents.
Use indoor aged hardwoods. The grain is tighter, threrefore less moisture in the wood.
Even decent softwoods (pine, fir) would be find, if they're kiln dried and not exposed to too much moisture.
I would use brass nails (maybee the wood pre-drilled as they bend easily). Brass solders easily. Avoid copper wire, it tarnishes and could be difficult to solder after a while. Use tin or silver plated wire.