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A resistance decade box or resistor substitution box is a unit containing resistors of many values, with one or more mechanical switches which allow any one of various discrete resistances offered by the box to be dialed in. Usually the resistance is accurate to high precision, ranging from laboratory/calibration grade accuracy of 20 parts per ...
Hobby Town Unlimited, Inc. is an American retail hobby, collectibles, and toy store chain headquartered in Lincoln, Nebraska. There are more than 105 HobbyTown franchise stores located in 39 states in the United States.
Nichrome, a non-magnetic 80/20 alloy of nickel and chromium, is the most common resistance wire for heating purposes because it has a high resistivity and resistance to oxidation at high temperatures, up to 1,400 °C (2,550 °F).
The Horizon Hobby logo. Horizon Hobby, LLC is an American multinational hobby-grade RC radio control (RC) model, model train manufacturer, and distributor. It was founded by Rick Stephens, Janet Ottmers, Debra Love, and Eric Meyers, [1] in July 1985, [2] and headquartered in Champaign, Illinois. [3] Horizon Hobby products are sold in more than ...
For example, a 10 ohm resistor connected in parallel with a 5 ohm resistor and a 15 ohm resistor produces 1 / 1/10 + 1/5 + 1/15 ohms of resistance, or 30 / 11 = 2.727 ohms. A resistor network that is a combination of parallel and series connections can be broken up into smaller parts that are either one or the other.
A decade box is a piece of test equipment that can be used during prototyping of electronic circuits to substitute the interchanging of different values of certain passive components with a single variable output.
[6] [9] In 1977, the company name changed to Kay-Bee Toy and Hobby Shops Inc. [6] [10] By 1979, the company was based in Lee, Massachusetts. The company opened 40 new stores during that year, and stated that it was the nation's fastest-growing toy store chain, with 170 locations across the Midwestern and Eastern United States .
A 2.26 kΩ, 1%-precision resistor with 5 color bands (), from top, 2-2-6-1-1; the last two brown bands indicate the multiplier (×10) and the tolerance (1%).. An electronic color code or electronic colour code (see spelling differences) is used to indicate the values or ratings of electronic components, usually for resistors, but also for capacitors, inductors, diodes and others.