You that are VDG enthusiasts should view this. I am using a
conductive plastic for the pickups, works way better than the
standard VDG pickups. Anybody wishing to try it email me personally
for my address and send me a self addressed stamped envelope, I'll
send you some.
Doug.J. https://www.youtube.com/watch?v=YCWAH-J091c
On 8/26/2015 4:46 PM, Derek wrote:
Doug,
My vdg uses to rollers made from PVC and Nylon with a rubber belt. I
tried latex, but the real rubber one was much better. I'm not sure
exactly what the difference is. I may be able to find the link to
the source on ebay if you are interested.
Looking through various tribo-electricscale lists gives various
values for PVC, Nylon and soft/hard rubber. So I went for a set
that was roughly top middle and bottom in the lists. The combination
works well for me.
On my VDG both rollers have a crown roughly 1mm higher in the
centre spread over 210mm. I found it very easy to set up the belts
as long as there was some slip between roller and belt and the belt
material was fairly stiff, otherwise the belt ended up folded over
multiple times in the centre.
More details.
VDP Project:
http://www.extremeelectronics.co.uk/blog/1mv-van-de-graff-project/
Roller and belt detail:
http://www.extremeelectronics.co.uk/blog/1mv-van-de-graff-project/vdg-rollers-combs-and-drive/
Derek
On 26/08/2015 20:22, Doug wrote:
I have been using black neoprene with excellent results but always
looking for something better.
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