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2. Electrical ballast - Wikipedia

   en.wikipedia.org/wiki/Electrical_ballast

   An electrical ballast is a device placed in series with a load to limit the amount of current in an electrical circuit. A familiar and widely used example is the inductive ballast used in fluorescent lamps to limit the current through the tube, which would otherwise rise to a destructive level due to the negative differential resistance of the ...

3. List of Arduino boards and compatible systems - Wikipedia

   en.wikipedia.org/wiki/List_of_Arduino_boards_and...

   5 V, output of up to 2 A, 3.3 V, 250 mA LDO voltage regulator; Variable Voltage supply of 1.25 V to 29 V, up to 2 A (Vin - 1 V) Reverse polarity and short circuit protection; 1.8" TFT display screen along with 5-way joystick and a pair of potentiometers, slide switch, and tactile.

4. Tube socket - Wikipedia

   en.wikipedia.org/wiki/Tube_socket

   Loctal tube type numbers in the USA typically begin with "7" (for 6.3-volt types) or "14" for 12.6-volt types. This was fudged by specifying the heater voltage as nominally 7 or 14 volts so that the tube nomenclature fitted. [17] Battery types (mostly 1.4-volt) are coded "1Lxn", where x is a letter and "n" a

5. Printed circuit board - Wikipedia

   en.wikipedia.org/wiki/Printed_circuit_board

   A printed circuit board (PCB), also called printed wiring board (PWB), is a laminated sandwich structure of conductive and insulating layers, each with a pattern of traces, planes and other features (similar to wires on a flat surface) etched from one or more sheet layers of copper laminated onto or between sheet layers of a non-conductive ...

6. Compact fluorescent lamp - Wikipedia

   en.wikipedia.org/wiki/Compact_fluorescent_lamp

   The adapter consists of a regular bulb screw, the ballast itself and a clip for the lamp's connector. Non-integrated bi-pin double-turn CFL with G24d plug-in base An electronic ballast and permanently attached tube in an integrated CFL. CFLs have two main components: a magnetic or electronic ballast and a gas-filled tube (also called bulb or ...

7. Capacitor types - Wikipedia

   en.wikipedia.org/wiki/Capacitor_types

   Printed circuit boards—metal conductive areas in different layers of a multi-layer printed circuit board can act as a highly stable capacitor in Distributed-element filters. It is common industry practice to fill unused areas of one PCB layer with the ground conductor and another layer with the power conductor, forming a large distributed ...

8. Resistor - Wikipedia

   en.wikipedia.org/wiki/Resistor

   Various resistor types of different shapes and sizes. A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. In electronic circuits, resistors are used to reduce current flow, adjust signal levels, to divide voltages, bias active elements, and terminate transmission lines, among other uses.

9. Automotive lighting - Wikipedia

   en.wikipedia.org/wiki/Automotive_lighting

   This type of convenience lighting approach is also sometimes used to illuminate interior or exterior door handles, exterior step running boards, or electric window switches. LED light sources appear increasingly as interior convenience lights in various locations, especially with finely focused lighting on console control surfaces and in cabin ...