The online magnet charger article is from a very interesting book. Believe it or not the whole book can be downloaded for free from. Check the left side of the web page to choose your format. Its available as a PDF for your PC or other formats for even a Kindle. ---------- Post added at 12:04 PM ---------- Previous post was at 11:43 AM ---------- The link I posted earlier has a link that takes you to Google Books. You could go directly here ---------- Post added at 12:13 PM ---------- Previous post was at 12:04 PM ---------- The encyclopedia linked here is the 1920 version.

The following includes tips on how to build and use a homemade magneto magnet charger. The cores of the electromagnet are made of soft bar steel one inch in diameter and three inches long. They are secured to a steel base measuring 5-1/4 by 1-1/2 by 5/8 inch and are provided with pole pieces measuring 1-3/4 x 1-3/4 by 5/8 inch.

The magnet charger plans are not in it anymore. They switched to charging $1 for the plans sometime between 1918 and 1920. The online magnet charger article is from a very interesting book. Believe it or not the whole book can be downloaded for free from. Check the left side of the web page to choose your format. Its available as a PDF for your PC or other formats for even a Kindle. ---------- Post added at 12:04 PM ---------- Previous post was at 11:43 AM ---------- The link I posted earlier has a link that takes you to Google Books.

You could go directly here ---------- Post added at 12:13 PM ---------- Previous post was at 12:04 PM ---------- The encyclopedia linked here is the 1920 version. The magnet charger plans are not in it anymore. They switched to charging $1 for the plans sometime between 1918 and 1920. I am looking for a plan that uses a 12 volt battery and I found a play by John Rex but that one sounds like overkill.

Tim Your first decision is to identify the type of magnetos you want to re-charge, HT or LT. How wide will the magnet bars be. What will your power source be. You can then design your charger to meet these criteria. If you want to use 12 volts and really zap a large magneto then the Rex size will be more appropriate than the Gingery. For LT magnetos the common view is that you will need to achieve 20,000 amp turns (turns of wire around the cores x amps drawn by the copper wire).

Have a look at. I set out there the theory behind the charger I made.