where can i find variable air capacitors" Australia

[gyulasun]

Hi Folks,

If you are willing to build, here are some links how to make variable caps:

1)  http://www.eham.net/articles/5217

and a working link mentioned in the above link: http://www.mydarc.de/dl5dbm/varce.pdf

2) for higher value capacitors (1000pF): http://brneurosci.org/capacitor.html

3) further info on sources for buying: http://www.standpipe.com/w2bri/source.htm

4) a short video on a homemade one: http://www.youtube.com/watch?v=_uPwJp_rxRg

rgds, Gyula

[scotty1]

Hey all.
The caps are simple to make.
I made one out of some aluminium sheet and a dowel.
It works better than the ones from old radio's...
I took the dowel and cut slots in it, then glued the 1" sq bits of ally in the slots. With this setup I can also vary the plate spacing as well as the amount of plate overlap.
Here is a clip of my setup powering a wall clock.
http://www.youtube.com/watch?v=LQT01-OA89k

Scotty.
Melb, Victoria.