Thread: Bedini SG
View Single Post
 
Old 01-19-2010, 09:42 AM
sucahyo's Avatar
sucahyo sucahyo is offline
Platinum Member
 
Join Date: Dec 2008
Posts: 3,073
Mechanically triggered SG from harddisk

Since I have a couple of broken harddisk laying around I had plan to make a bedini school girl with mechanical switch. Just build it and run it today and....

Work at 60 RPM .

Only on repulsion mode though. Can not make it sustain using attraction mode.

Magnet are taken from two identical harddisk. The rotating part is the disc. The coil is harddisk head coil. Other component: NPN transistor, diode and 12V battery.

NPN transistor is triggered by mechanical means via 100 ohm on the base. No spark, it rotate . Timing is done via sticky tape lol.

Maybe I need to add weight...
Attached Images
File Type: jpg bediniharddisk.jpg (16.8 KB, 55 views)
File Type: jpg bediniharddisk2.jpg (17.9 KB, 47 views)
__________________
 

Last edited by sucahyo; 01-19-2010 at 09:47 AM.
Reply With Quote