.. house. 1 X Coathanger (for the legs). 1 X Egg Carton. ~ 2 X LeD. 1 X Battery (that suits the two LeD's). 2 X Short peice of wire or 1 X Long peice of wire to cut in half (you decide). 1 X Pliers (to bend wire for legs). 1 X Hot glue gun or ...
.. is simply two conductors that are bridged by the rain water. A simple sensor is shown below. Two conductors of bare copper wire are woven through the holes so that the conductors are near each other but do not come into contact. Notice the ...
.. Battery Clip standard battery snap Battery 9 volt rectangular - Alkaline recommended Probe pin jack or similar with short wire probe Case Altoids mint tin or similar metal box The probe should be built into a metal box so that one hand ...
.. type transistor radio plate. Dissemble and strip its windings. Wind 1500 turns primary and 1500 turns secondary with 44 SWG wire. Assemble it back. Purist may also add a layer between the two windings and ground one end to make a Faraday ...
.. Try this one from SparkFun Electronics #COM-00104; $0.95 3.7 V battery (SparkFun Electronics #PRT-08818; $4.95) Scrap wire Round flat-top metal container (I used a salvaged Kiwi Brands shoe polish container -- just to prove to some of ...
.. affair, as bringing your hand near the electrometer will probably alter its reading. The probe can be just a few inches of wire. The impressive looking probe on my meter is nothing more than a redundant adapter from an emergency mobile phone ...
.. cover Plumbing Extension Tube (12 X 1 1/4 in diameter) Hobby Box Momentary Switch 2-AA Battery Holder Epoxy Rubber grommet wire Flash cotton, flash paper and Flame Resistant Confetti Prepare the Base Drill a 1/4 hole in the center of the ...
.. from the 6-pin header to the right places on the chips. This time 'round, I used etched PCBs. You can just as well hand-wire the whole thing on perfboard. The ATTiny13/15 cradle is made with an 8-pin wire-wrap socket. I love these. It's ...
.. 16V Electrolytic Capacitor Q1 1 2N3904 NPN Transistor 2N2222, Most Small Signal Transistors U1 1 555 Timer IC MISC 1 Board, Wire, Knob For R1, 8 Pin Socket For U1 Notes R1 adjusts the position of the servo. Connect the servo to the circuit as ...