Ferrite noise filters
12-01-2004, 04:19 PM
#16
Originally posted by howard hudson
I have tryed those clip on filters with no luck . If you want a for sure fix for a glitch problem get the yokoma noise filter . its about 20 bucks and you get the filter that goes between the esc and tge reciver and two differant types of sheilding wrap that goes on the reciver this works real good
I have tryed those clip on filters with no luck . If you want a for sure fix for a glitch problem get the yokoma noise filter . its about 20 bucks and you get the filter that goes between the esc and tge reciver and two differant types of sheilding wrap that goes on the reciver this works real good
12-01-2004, 04:26 PM
#18
Hebiki,
But I still see him glitch... hmm, probably that's just his hands shaking...
Anyhow, I like the ferrite magnets from yokomo (actually made by TDK). It works for me and costs less. Just an FYI, you can buy these from electronic stores that sell monster cables for speakers. These were made for speaker wires to reduce the noise coming from stereo components to the speakers.
But I still see him glitch... hmm, probably that's just his hands shaking...
Anyhow, I like the ferrite magnets from yokomo (actually made by TDK). It works for me and costs less. Just an FYI, you can buy these from electronic stores that sell monster cables for speakers. These were made for speaker wires to reduce the noise coming from stereo components to the speakers.
12-01-2004, 04:43 PM
#20
Tech Initiate
Aren't those just Toroidal cores? Or am I thinking of something else?
12-01-2004, 05:03 PM
#21
Originally posted by Hebiki
ill just steal those off old computer stuff and use it on my RC
ill just steal those off old computer stuff and use it on my RC
12-01-2004, 09:17 PM
#23
Ideally, you shouldn't have glitching problems if you do the wiring and layout properly. Noise killer accessories should only really be a last resort and they do not work all the time either.
12-01-2004, 09:22 PM
#24
Regardless if they work or not....
I would not trust a career electrician....lots of stuff that works on our little cars rarely makes sense to similar industries.
I remember one day, when I was a kid at the local track.....a guy came in with his kid to buy a car. The dad was some type of aerodynamic engineer at Boeing. He sat there for 25 minutes explaining to us why a wing on an offroad car would do absolutely nothing because of its size. He told us it was too small to make any difference. We tried to convince him and literally had to get a car going out of the track and let him drive it with and without the wing to prove the point.....and low behold, every time he went over a jump without the wing, the car just nose dived.
There have been similar arguements over the years about baseball if a ball REALLY curves, slides, sinks, etc....took nothing more than putting these guys in the batters box with a MLB pitcher to make them feel dumb.
Later EddieO
I would not trust a career electrician....lots of stuff that works on our little cars rarely makes sense to similar industries.
I remember one day, when I was a kid at the local track.....a guy came in with his kid to buy a car. The dad was some type of aerodynamic engineer at Boeing. He sat there for 25 minutes explaining to us why a wing on an offroad car would do absolutely nothing because of its size. He told us it was too small to make any difference. We tried to convince him and literally had to get a car going out of the track and let him drive it with and without the wing to prove the point.....and low behold, every time he went over a jump without the wing, the car just nose dived.
There have been similar arguements over the years about baseball if a ball REALLY curves, slides, sinks, etc....took nothing more than putting these guys in the batters box with a MLB pitcher to make them feel dumb.
Later EddieO
12-02-2004, 07:59 AM
#25
Tech Initiate
Well... Logic and theory may suggest that something will just not work... but try it in the real world and you'd be surprise at what you find.
I didn't believe at first but then I gave these ferrites a try and it works. I'm a believer now.
Yeah I think scientists ruled out the possibility of building machines that travelled faster than sound back then. I guess the world must have flipped over when a plane broke Mach 1.
I didn't believe at first but then I gave these ferrites a try and it works. I'm a believer now.
Yeah I think scientists ruled out the possibility of building machines that travelled faster than sound back then. I guess the world must have flipped over when a plane broke Mach 1.
12-02-2004, 08:12 AM
#26
Originally posted by Entropy
Ideally, you shouldn't have glitching problems if you do the wiring and layout properly. Noise killer accessories should only really be a last resort and they do not work all the time either.
Ideally, you shouldn't have glitching problems if you do the wiring and layout properly. Noise killer accessories should only really be a last resort and they do not work all the time either.
On another note, I have been using the ferrite magnets for the last year and until the other day I couldn't tell you if they worked or not. After soldering in a new motor, I forgot to put them back on my car and I did notice some glitching I wasn't getting earlier in the day. For the next pack, the only change I made was putting them back on and no more glitching.
I think most people that say they don't work are putting the magnets on a setup where they never received glitches before the magnets and don't notice a difference with the magnets.
Bottom line is if you are getting glitching, give them a try!
12-02-2004, 08:14 AM
#27
If you call www.digikey.com they will hook you up with ferritt coils, they have both the clip on (which work OK) and they have the wrap coils which are the ones Yokomo uses. I love yokomo but they cahrge too much for a coil that you can do yourself. The coils cost like 50cents each and if you want they have many sizes just call there custom line and ask for a specialist. I think I spent like 20.00 and got two hand fulls of the clip ons and the wrap kind. If you are looking at buying some I could part with a few of each type.
Let Me Know
Stephen <><
Let Me Know
Stephen <><
12-02-2004, 08:16 AM
#28
Airplane guys have used it for years for glitching prevention, well before most of us got into R/C. In order for the ferrite cores to work for R/C electronics, you have to wrap it around the core at least 3 times to have its full effect, see the pic from howard hudson's post. The clip on ones just don't allow your wire to loop it 3 times.
Dom
Dom
12-02-2004, 09:49 AM
#29
used to use it, until a club guy which is a hardcore electrician by trade told us it really doesn't do squad
Electrician or Electrical Engineer? Electricians pull wire, Electrical Engineers deisgn circuits. Cores do work. They reduce the common mode noise that may exist on signal wires. Anytime we make a precision measurement at work we use them.
12-02-2004, 10:15 AM
#30
Unless someone put some scientific findings on R/C specific application. We can talk about how it works in other industry and how your job blah blah blah, my uncle blah blah blah, but that doesn't mean it applies to our little r/c car. Like EddieO said earlier, it goes both ways.
Dom
Dom