Where To Buy Capacitors

[Mel279]

Any two wires from any of the lower or upper board should be fine and make sure to install it to the same polarity, sorry for the blur pic

[Ub Hauled]

Actually, I am not an electronic engineer, but I think you should have one on each wire feed (top and bottom)... to keep things evened out... yes?
Any electronic engineers out there familiarized with the hydra 240?

[Mel279]

ACtually, I am not an elecronic engineer, but I think you should have one on each wire feed (top and bottom)... to keep things evened out... yes?
Any electronic engineers out there familiarized with the hydra 240?

Yes of course, but I have only one cap of that size. I'll be installing one more on the other wire. Thanks for the advice Ub Hauled

[BILL OXIDEAN]

Etti

Use the ETTI cap board, and its a done deal..

[longballlumber]

How do you go about identifying the correct capacitor for the application? Is there one "cap" that I can buy that will suffice all applications (14.8 volts and lower)? To me it looks like there are 3 main factors in the caps.

Input voltage
Microfarens or the uF number
Operating temp

The Etti unit looks very nice, but I can’t understand why a $25.00 board (plus shipping) instead of capacitors at less than $2.00 each.

Does anyone care to share?

[Meniscus]

Oh no, here we go! Why is FE so expensive? For that very reason

.....and the removal of product liability from manufacturers.

There are many different circuit designs out there if you feel so inclined. Me? I can't afford to lose a motor and I'm not about to start making my own => not at 40k rpms LOL!

You are purchasing piece of mind :) and like some of us, I kinda like that. Plus, your time is worth a lot too!

[Ub Hauled]

The Etti unit looks very nice, but I can’t understand why a $25.00 board (plus shipping) instead of capacitors at less than $2.00 each.

Does anyone care to share?

I thought about that long and hard... it makes no sense to me.. maybe cause it's an import? Not sure... but I am already looking in making my own.
Not going to attempt making a motor, like Ben was stating, but I think I have enough know-how to make a little cap board.

[longballlumber]

.....and the removal of product liability from manufacturers.

I personally talked to "Joe" from Castle at the Toledo Hobby show, and he is the one who suggested it. We discussed warrenty too. how you assemble in the capacitors on to the circut is the key.

I do as much on my own as I possibly can. Puting caps on a PCB isn't rocket sicence, until you start building circuits with resistance, switches,.... etc...

[longballlumber]

There are many different circuit designs out there if you feel so inclined.

Why would different circuit designs matter if the Etti unit can be used on any/most controlers for FE boating or high draw use?

I am all about learning and expanding my knowledge on the hobby. I think adding caps to a controller will help with heat and reliabilty for FE.

Mike

[longballlumber]

I found this place, but they don't seem to stock the bigger (higher capacity) caps.

http://www.newark.com/jsp/search/bro...t=rubycon&Ntx=

[alvinsmith75]

Ordered 10 of these on monday and received them today. 2days-unreal

http://www.mouser.com/Search/ProductDetail.aspx?qs=sGAEpiMZZMsCnlYck6hSqD5NQpIDFweZkqUyH0XnouY%3d

[knpc]

Thats good to know. I checked radio shack and didn't find much so I guess I'll be ordering somefrom them as well.

[longballlumber]

I also just received 10 of these and got them in 2 days. Orderded on Monday and they were home yesterday when I got back from running my boat.

http://www.newark.com/rubycon/25zlh1...requestid=5967

[7500RPM]

You can not just use off the shelf capacitors, as they will not last in this high frequency ripple environment, they will fail sooner...You have to use capacitors that have a very low ESR, and are designed for switching power supplies..

[Jeff Wohlt]

Peace of mind is not me building a cap board and maybe running a good ESC for $23. Of course, many of you have the ability...not me. I solder well but this is nothing I want to do.