
McLean County Fair Book Supplement
... 2225 DC 3-way or 4-way Switch Circuit Board Exhibit a circuit board with direct current loads (i.e. light bulbs) and switch(s) demonstrating the application of 3-way and/or 4-way switch action. Exhibit may feature series or parallel circuits. The switches used for this project must expose the mechan ...
... 2225 DC 3-way or 4-way Switch Circuit Board Exhibit a circuit board with direct current loads (i.e. light bulbs) and switch(s) demonstrating the application of 3-way and/or 4-way switch action. Exhibit may feature series or parallel circuits. The switches used for this project must expose the mechan ...
Electrochemistry/Alchemy: Molar Mass of Cu and
... In the second type of electrochemical cell, called an electrolytic cell, a non-spontaneous redox reaction is caused by the addition of electrical energy from a direct current source such as a generator or a storage battery. The process of generating a non-spontaneous redox reaction by means of elect ...
... In the second type of electrochemical cell, called an electrolytic cell, a non-spontaneous redox reaction is caused by the addition of electrical energy from a direct current source such as a generator or a storage battery. The process of generating a non-spontaneous redox reaction by means of elect ...
bq20z75/95 Printed Circuit Board Layout Guide
... TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and applications using TI components. To minimize the risks associated with customer products and applications, customers should provide adequate design and operating safeguar ...
... TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and applications using TI components. To minimize the risks associated with customer products and applications, customers should provide adequate design and operating safeguar ...
Micro Sensing Device Data Book
... appears black to the human eye (i.e., in the visible light range) may have a higher reflection ratio. Select materials carefully. Concretely, marks made with dye-based inks or marks made with petroliumbased magic markers (felt pens) can have the same reflection ratio for infrared light as white pape ...
... appears black to the human eye (i.e., in the visible light range) may have a higher reflection ratio. Select materials carefully. Concretely, marks made with dye-based inks or marks made with petroliumbased magic markers (felt pens) can have the same reflection ratio for infrared light as white pape ...
HART 1401 - Basic Electricity for HVAC
... Each student will spend at least 4 hours per week Preparing for class. As a student in this class you are expected to display respect, professional behavior and a cooperative attitude at all times. Punctual attendance is critical in this class. This course will focus on the basic skills needed to pe ...
... Each student will spend at least 4 hours per week Preparing for class. As a student in this class you are expected to display respect, professional behavior and a cooperative attitude at all times. Punctual attendance is critical in this class. This course will focus on the basic skills needed to pe ...
BalloonSat Manual - LaSPACE - Louisiana State University
... When designing devices which will interface to the BASIC Stamp I/O pin usage must be allocated to prevent contention of devices. It is possible to have multiple I2C devices sharing the same hardware I/O lines if each device has a unique I2C address. MICROWIRE devices can share clock and data lines b ...
... When designing devices which will interface to the BASIC Stamp I/O pin usage must be allocated to prevent contention of devices. It is possible to have multiple I2C devices sharing the same hardware I/O lines if each device has a unique I2C address. MICROWIRE devices can share clock and data lines b ...
Final Report - Senior Design
... distance of 5-10 inches, a supply voltage of less than 1.4 Volts, and a size small enough to fit within the ear. Once the team selected a design, a prototype transmitter was constructed on a breadboard from common thru-hole components. This initial prototype yielded excellent results and transmitted ...
... distance of 5-10 inches, a supply voltage of less than 1.4 Volts, and a size small enough to fit within the ear. Once the team selected a design, a prototype transmitter was constructed on a breadboard from common thru-hole components. This initial prototype yielded excellent results and transmitted ...
Original instructions to assemble JLH-831 voltage
... This completes the installation of all resistors with the exception of those in the interval-selector resistor-divider network. These resistor values may be selected to any value you calculate to cause the 831 to shift directly to intervals of your choice. The resistor values indicated on the schema ...
... This completes the installation of all resistors with the exception of those in the interval-selector resistor-divider network. These resistor values may be selected to any value you calculate to cause the 831 to shift directly to intervals of your choice. The resistor values indicated on the schema ...
Drake TR-7 improvements
... I am not referring to the “ESSB” sound that some fellow operators like to use, but rather to a “dryer quality” sound of the 2,3Khz audio which, without providing an appreciable improvement of selectivity compared to the 2,7Khz one, removes some high frequency spectrum form the audio which makes list ...
... I am not referring to the “ESSB” sound that some fellow operators like to use, but rather to a “dryer quality” sound of the 2,3Khz audio which, without providing an appreciable improvement of selectivity compared to the 2,7Khz one, removes some high frequency spectrum form the audio which makes list ...
3 - CHANNEL LIGHT ORGAN
... A diagonal cutter to trim excess wires. To avoid injury when cutting excess hold the lead so they cannot fly towards the eyes. ...
... A diagonal cutter to trim excess wires. To avoid injury when cutting excess hold the lead so they cannot fly towards the eyes. ...
Agilent Investigating Microvia Technology for 10 Gbps
... matrix is not trivial, so it is helpful to analyze one quadrant at a time. The first quadrant in the upper left of Figure 11 is defined as the 4 parameters describing the differential stimulus and differential response characteristics of the device under test. This is the actual mode of operation fo ...
... matrix is not trivial, so it is helpful to analyze one quadrant at a time. The first quadrant in the upper left of Figure 11 is defined as the 4 parameters describing the differential stimulus and differential response characteristics of the device under test. This is the actual mode of operation fo ...
COG 2x16 LCD Board User Manual
... - Display contrast regulator by changing power supply voltage via potentiometer P1 - Register sellection. By providing a logic one (1) on the pin, data registers will be selected. By providing logic zero (0) on the pin, instruction registers will be selected. - Reading/Writing selection. By provid ...
... - Display contrast regulator by changing power supply voltage via potentiometer P1 - Register sellection. By providing a logic one (1) on the pin, data registers will be selected. By providing logic zero (0) on the pin, instruction registers will be selected. - Reading/Writing selection. By provid ...
4 - H
... 2525 DC 3-way or 4-way Switch Circuit Board Exhibit a circuit board with direct current loads (i.e. light bulbs) and switch(s) demonstrating the application of 3-way and/or 4-way switch action. Exhibit may feature series or parallel circuits. The switches used for this project must expose the mechan ...
... 2525 DC 3-way or 4-way Switch Circuit Board Exhibit a circuit board with direct current loads (i.e. light bulbs) and switch(s) demonstrating the application of 3-way and/or 4-way switch action. Exhibit may feature series or parallel circuits. The switches used for this project must expose the mechan ...
Printed circuit board

A printed circuit board (PCB) mechanically supports and electrically connects electronic components using conductive tracks, pads and other features etched from copper sheets laminated onto a non-conductive substrate. PCBs can be single sided (one copper layer), double sided (two copper layers) or multi-layer (outer and inner layers). Multi-layer PCBs allow for much higher component density. Conductors on different layers are connected with plated-through holes called vias. Advanced PCBs may contain components - capacitors, resistors or active devices - embedded in the substrate.FR-4 glass epoxy is the primary insulating substrate upon which the vast majority of rigid PCBs are produced. A thin layer of copper foil is laminated to one or both sides of an FR-4 panel. Circuitry interconnections are etched into copper layers to produce printed circuit boards. Complex circuits are produced in multiple layers. Printed circuit boards are used in all but the simplest electronic products. Alternatives to PCBs include wire wrap and point-to-point construction. PCBs require the additional design effort to lay out the circuit, but manufacturing and assembly can be automated. Manufacturing circuits with PCBs is cheaper and faster than with other wiring methods as components are mounted and wired with one single part. Furthermore, operator wiring errors are eliminated.When the board has only copper connections and no embedded components, it is more correctly called a printed wiring board (PWB) or etched wiring board. Although more accurate, the term printed wiring board has fallen into disuse. A PCB populated with electronic components is called a printed circuit assembly (PCA), printed circuit board assembly or PCB assembly (PCBA). The IPC preferred term for assembled boards is circuit card assembly (CCA), and for assembled backplanes it is backplane assemblies. The term PCB is used informally both for bare and assembled boards.The world market for bare PCBs reached nearly $60 billion in 2012.