The soldering iron has a home-made "flattened" tip made from discarded copper Romex house wiring. After I make a bubble pack tube and insert a car in the tube, I put 3/8-inch thick pieces of flexible polyurethane foam on each end of the car. I provide a 3/8 x 3/8 inch...
Now you can concentrate over 17 watts, about the same power as a soldering iron. Solar filters either have to reflect or absorb this energy to reduce the amount reaching the eyepiece to a safe level. As such you will generally find them mounted to the front of the telescope, to reduce t...
The soldering iron has a home-made "flattened" tip made from discarded copper Romex house wiring. After I make a bubble pack tube and insert a car in the tube, I put 3/8-inch thick pieces of flexible polyurethane foam on each end of the car. I provide a 3/8 x 3/8 inch cut-...