It might work as a shield?
I think the low impedance pickups use aluminum for their loop of wire. I haven't messed with them enough to know if copper would work as a substitute.
Good to know!
I had read/skimmed that thread, but it's been awhile. Looking at that thread and the Build Your Own Induction Mag thread, I'm seeing copper on the first page - doh! Makes sense that copper would work. I bet silver or gold would too.
I imagine gold would work very well, especially re conductivity Skeesix, but every time i ask at the scrap yard, they say they have none, and it's rare in dumpsters too
Silver gets used a lot in cell phone and laptop computer circuits and is a good bit more affordable. Also easier to solder too.
Don't think anyone is going to use gold. If they could afford to use that, they would probably just buy a pickup instead of making one. ;)
Wish I could find some gold in a dumpster.
silver is best.followed by copper then gold then aluminium... silver at 6.3 is almost twice that of aluminium at 3.5
The second issue in all of these is: how sensitive are they to magnetic field distortion? For example, copper conducts far better than aluminum, but aluminum is far more sensitive to magnetic distortion fields. This leaves the question: which works better for a pickup?
I believe copper would work better, but it cries for a good experiment. : )
I discounted aluminum because it's very difficult to solder.
yes it would be interesting but unless we can come up with a spot welder for aluminium then we may never know. just did a bit of googling ...
Copper is a superior electrical conductor. Aluminum's conductivity is about 62% that of copper
this article says that they could use either Al or Cu but highlight the problem with connections for Al ie corrosion but more importantly say the equivalent transformer in Al would be bigger even though it would be lighter.
so for us as backyard pickup experimenters i think copper is going to be the best/easiest to work with.
Perfect for a low impedence pup, i've made them with 1/16" and even copper tape
You could use aluminum if you drill holes and use press in screw terminals. Then attach wires with crimp on eyelets to the terminal and use a nylon lock nut to prevent loosening from vibration. They would have to be small though.