Potentiometer

freddie · 05-07-2007 03:03PM

Sorry, Electricity is really confusing to me, I just cannot make sense of it! I feel like a 5year old learning maths again! Do you think if i use the setup above with a 3w potentiometer it has a chance of working? That is a 230Va to 12va transformer through a 3w potentiometer to a 60w bulb.
thanks so much for bearing with me!

Michael Collins · 05-07-2007 08:12PM

Do you think if i use the setup above with a 3w potentiometer it has a chance of working? That is a 230Va to 12va transformer through a 3w potentiometer to a 60w bulb.

Yep I do think there's a chance. But you must test it first, the testing part is easy really, I can show you how to do that if you like.

thanks so much for bearing with me!

No problem. I'd be interested to get this working myself!

freddie · 05-07-2007 10:20PM

Thanks a million

I will order a few components from radionics on Monday, and fingers crossed something will work! Maybe if steorn will get their free energy device working i can fit one in somewhere! I will keep you updated!

freddie · 06-07-2007 02:15PM

just on Radionics now and just wondering which of these should I order? Not sure what the R, K and M stand for.

Michael Collins · 06-07-2007 07:47PM

That link ain't working Freddie!

freddie · 06-07-2007 09:02PM

Sorry about that, Radionics dosnt seem to like links being sent! the product number is 188-5521. there are a few different types with numbers following them like 470K, 1M, 220R etc. I just dont know what they are/mean. Thats the type of Pot I hope to use, with the connections on the base.

freddie · 10-07-2007 11:40PM

Ok guys
I tracked this pot down, and to me looks like it could be used on a mains line 10A@250VAC am i right or wrong?

http://www.farnell.com/datasheets/89365.pdf

fishdog · 12-07-2007 05:44PM

I looks like it can switch 10A at mains voltage.

The problem is I can not see how many watts it is designed to dim!
The technical information talks of a track rating of 0.2 watts, which appears to be the overall rating of the dimmer, but this would seem a bit strange seeing as though the switch part can switch 10A.

The other problem is that you would have to solder the wires on to this dimmer. This seems like alot of hassel.

The first thing you have to do is work out how many watts is the lamp you are using.

MK make a simple 250 watt dimmer module for a grid switch with terminals on it that do not require any soldering, just a screwdriver. You can buy them over the counter in Kellihers, Eurosales or NEW. They all have sevral branches across Dublin. T'OReillys also would have this, but they are VERY expensive.

If you have any more questions PM me and I will give you my mobile number (or PM me yours). When I talk to you on the phone I garantee you I will be able to sort out any problem you have with this. I am an experienced electrician and have been at this sort of thing for a long time now.

freddie · 12-07-2007 06:41PM

That's brilliant fishdog, a great answer! I was supposed to give an update earlier but didn't get a chance. I have sourced a touch sensor dimmer module form these guys which will fit what I need.
It seems like a great, easy to set up technology. I just have to put a plastic cap on the tube and run a sensor wire to it. Only problem is that it is very expensive, working out at €60, but thats ok for a prototype, and i'm sure I can get them cheaper somewhere, probably China.
Have you ever seen these in action? just wondering if they work as well in practice as they do in theory? Thanks a million for your help, and offer of assistance, I might have to take you up on that offer with future projects.

freddie

Potentiometer

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