Search found 3 matches

by dbodnar
Mon Sep 21, 2009 8:50 am
Forum: Projects & Kits
Topic: Magnetic Pendulum
Replies: 8
Views: 6374

Re: Magnetic Pendulum

Tony - I took the pendulum idea and used it to create two animated acrobats for a train layout that we (The Pittsburgh Garden Railway Society) set up during a local weekend Oktoberfest. I put some videos on my web page at: http://trainelectronics.com/Pendulum/ The coil, battery and electronics are h...
by dbodnar
Thu Sep 03, 2009 2:00 am
Forum: Projects & Kits
Topic: Magnetic Pendulum
Replies: 8
Views: 6374

Re: Magnetic Pendulum

I just updated the web page and added a second video of the latest pendulum.

http://trainelectronics.com/Pendulum/

Tony, have you tried using caps to stop the oscillation of the circuit - that is on my list of things to try... Perhaps a 5 pf from the base of Q1 to ground?


dave
by dbodnar
Wed Sep 02, 2009 1:36 pm
Forum: Projects & Kits
Topic: Magnetic Pendulum
Replies: 8
Views: 6374

Magnetic Pendulum

Good day - I just wanted to thank Tony Gasparovic for an excellent article in the September issue, Magnetic Pendulum. I got 2000' of magnet wire in the mail today and have two pendulums (pendula?) working. When I got the first one going I couldn't resist making a quick video: http://trainelectronics...