Bruce,

Could you please delete the two circuits in my drawing and just leave the
coil? It was not clear to me how those circuit worked and did them wrong.
Sorry for the mistake.

Groundloop.

@ Groundloop,

Nice to see you again.



@all,

Here is what I have been up to the last couple of weeks, a lot more to be made before it is finished.
My cotton winding machine on it's first test run, no bare copper wire yet, got a few bugs to iron out with pullies, drive belting, got to build a couple of PWM speed controlers, but it works.

jim

Please click on the BELOW PAPERCLIP
thanks

Really nice work Electricme! 

QuoteFound a chinese company that said they can supply me with 1500 feet spools of cotton covered galvanized steel wire 20 gauge

Find out the total price for shipping to the states.

Quotethought why does the copper have to be covered why not the steel

The copper is the current carrying wire. If its not insulated someway it will short out. You could use insulated magnet wire. The iron wire can be insulated at the same time as it doesnt have to be bare. It would be easier to wind to as you wouldnt need to interleave another cotton insulator to prevent the shorting out of the iron wire. Even the bare iron wire cant touch itself.   

Quote from: RudyT on May 25, 2010, 09:49:54 AM
I may have found a supplier for cloth covered wire.  Found a chinese company that said they can supply me with 1500 feet spools of cotton covered galvanized steel wire 20 gauge.  thought why does the copper have to be covered why not the steel .  will post more when i find out more information and actually try to make one of these batteries.

I agree with what IotaYodi has said and also will add that the galvanized wire is zinc coated with a very thin layer that will break down very quickly.  Better to use just iron wire and use the cotton on the copper wire only.

Here is a thought...will this company sell you just the cotton insulating tubing?  It would be great to be able to buy rolls of this and then we could stuff our own copper wire into it.  Not as easy as the real deal but a lot easier than what some of us have been doing.

@ Jim:

Excellent work on your machine!  That is an amazing design.

Bill

Seems to me that cotton may have been the only insulation for wire they had back then.

All the really old wire I've encountered was wrapped in paper strands and covered with a cotton jacket.

Later on they used some weak rubber appearing compound, also jacketed with cotton.

Does that mean or imply that any type of insulated copper wire could also be used...it would sure make life a lot easier.

Regards...