Tell us about yourself!
The only difference the wattage will make is how in the speed of the burn. Higher wattage = hotter & faster burn.
I realize I'm a bit late in the game with my input, but I found GTO15 at my local Lowe's hardware. I've also made one of these using a cheap set of jumper cables I got from Harbor Freight.
So I managed to snap my mag wire about 250 turns in. Can I solder the ends and continue on?
If you're having trouble procuring the copper sulfate, you can make your own copper acetate by mixing hydrogen peroxide and distilled white vinegar 50/50 in a glass container, microwaving it until it's around 110 Fahrenheit and then dropping some copper objects into it. Swirl it around a bit and once it turns light blue, remove the copper pieces and you're good to go.**NOTE: The items you put into the vinegar/peroxide solution need to be as pure copper as possible. I recommend a copper scouring pad. Just make sure it's real copper and not copper plated. It'll ruin your acetate.
I changed out the ten turn pot for a 28 turn smaller variant, also I used a 24v wall wart power supply in lieu of a battery pack.
Replaced the batteries with a 24v power supply and the ten turn knob style potentiometer with a 28 turn hole through type.
Actually, I think I've figured it out. The volt meter I got online was faulty I believe.So the difference between yours and mine, is I used a 28 turn pot, and hooked it up to a 24v 750ma wall wart, since I'm using this for electro plating I didn't need it portable
Sorry for the poor diagram on the board, I covered the back in hot glue to insulate the circuits. Also, no worries about the length of time to reply. I realize this instructable is a little over 3 years old and honestly didn't expect a response. Thanks very much for still monitoring the comment section!