Page 16 - Demo

ELECTRICITY, MOTORS & GENERATORS, CONTINUEDAir Core SolenoidLarge versatile solenoid can be used with a cathode ray tube or current balance. Heavy enamel #16 niclad copper wire is carefully wound on a tough phenolic core. With 570 turns, the wire ends at easy-to-use binding posts on rigid plastic end plates and can carry 10 amps intermittently and 5 amps continu-ously without overheating. Includes instructions and experiments. Solenoid is 15 cm long, 9 cm2 ends and a large 6-cm interior diameter.AP5628 I $162.20Tesla Coil, TabletopHands-free Tesla coil shows unusual proper-ties of high-frequency electrical phenomena like wireless glowing of fluorescent bulbs and 50,000-volt electric sparks jumping safely to a finger. Teach topics like transformers, elec-tromagnetism, resonating electrical circuits, electric inductance, capacitance and electrical power transmission. Includes antenna plates, neon lightbulb, discharge electrode, lamp socket and instructions for 18 experiments. AP6479 I $325.00Metal Electrode SetSet includes six assorted metal electrodes. Includes one strip each of aluminum, brass, copper, iron, lead and zinc. All are 6” x ½”, except zinc, which is 5” x ½”. AP4602 I $43.65Motor, DCJust add 1.5–6.0 volts of power and watch this efficient little motor “hum” at 7000–11,000 rpm. A very dramatic item to add to student circuitry experiments. Also use this motor to teach motor operation and polarity or to spin small objects. You’ll find many uses for this little workhorse! Includes connecting wires with alligator clips. Optimum performance with 3.0–4.5 V.AP6041 I $3.00Tesla CoilSelf-contained, handheld Tesla coil produces high voltage at a high frequency to light spectrum tubes and fluorescent and incan-descent bulbs without wires or contact. The 2” electrode outputs 10,000–50,000 volts at around 500 kHz. Adjust spark intensity with a knob on the unit. Designed for inter-mittent use; must be turned off to cool after 10 minutes. AP5443 handle features ON/OFF momentary switch for improved safety. Includes heavy-duty case. Build a Radio Speaker—Student Laboratory KitStudents discover how a speaker works by constructing a working speaker from two plastic cups, a coil of wire, magnets and speaker wire. Students experiment with different variables to improve the quality and sound while learning fundamental concepts like energy conversion, electromagnetism, resonance, amplitude and frequency. Includes one battery-operated AM/FM radio, detailed instructions and Teacher Notes. AP7076 I $81.45CATALOG NO.DESCRIPTIONPRICE/EACHAP1594—$245.65AP5443ON/OFF Safety Switch308.85Electrostatics KitDemonstrate static electricity using a variety of easy-to-use materials. Kit contains three friction rods and pads (silk, flannel and fur) for creating friction, three balloons and 10 feet of string. Complete instructions for use are provided. AP9026 I $27.40