Browsing Gallery: Slinky Antenna

G0DUB built a Slinky antenna using four of the childrens toys. The aim is to have a helically loaded dipole which you tune to resonance by shorting out turns at the end of the coils. Depending upon the quality of the Slinkys you buy this isn't really an outdoor antenna since corrosion can set in quite quickly. A useful idea but probably more likely to be an indoor standby antenna for me. I was wondering about abandoning the co-ax feed and jumper wires and feeding it with balanced line as a doublet. It would certainly be easier than tweaking crocodile clips each time I changed band.