
Soldering iron
... ·Making the element cover thinner enables better viewing during work and easier working even on a P.W.B. with highly dense components. Iron holder provides 3 cleaning methods and low-noise effect ·Sound and vibration generated when placing the iron into the iron holder were reduced by 30%. ·Three ty ...
... ·Making the element cover thinner enables better viewing during work and easier working even on a P.W.B. with highly dense components. Iron holder provides 3 cleaning methods and low-noise effect ·Sound and vibration generated when placing the iron into the iron holder were reduced by 30%. ·Three ty ...
The Picaxe Hatchet Board
... Remote Voltage Monitor These 6 basic applications are provided as examples for what you can do with the Hatchet board. Use the programs as-is or modify away. If you come up with a neat application that you would like to share with other Hatchet users, please let me know and I will post it in the Hat ...
... Remote Voltage Monitor These 6 basic applications are provided as examples for what you can do with the Hatchet board. Use the programs as-is or modify away. If you come up with a neat application that you would like to share with other Hatchet users, please let me know and I will post it in the Hat ...
Slide 1
... Capacitors are also very good at releasing their stored charge all at once. The capacitors in your tube-type TV are so good at storing energy that touching the two terminals at the same time can be fatal, even though the TV may not have been used for months. ...
... Capacitors are also very good at releasing their stored charge all at once. The capacitors in your tube-type TV are so good at storing energy that touching the two terminals at the same time can be fatal, even though the TV may not have been used for months. ...
Extended ADSR BOM / Build doc
... Carefully mount component pcb (with the pots and LED inserted) onto the front panel. First slide / push the LED into the LED lens - all the way, this may take a bit of force. You may then have to wiggle each pot a bit to get the pots through. Make sure the threads of the pots go through completely a ...
... Carefully mount component pcb (with the pots and LED inserted) onto the front panel. First slide / push the LED into the LED lens - all the way, this may take a bit of force. You may then have to wiggle each pot a bit to get the pots through. Make sure the threads of the pots go through completely a ...
Lesson Plan
... - Three different resistors (10 - 400). - Wire with alligator clips and/or banana clips Procedure: 1. Record all data and calculations in the tables below or on a separate piece of paper. 2. Connect voltmeter in parallel to one of the resistors as shown. 3. Connect ammeter in series adjacent to the ...
... - Three different resistors (10 - 400). - Wire with alligator clips and/or banana clips Procedure: 1. Record all data and calculations in the tables below or on a separate piece of paper. 2. Connect voltmeter in parallel to one of the resistors as shown. 3. Connect ammeter in series adjacent to the ...
1W STEREO KA2209 AMPLIFIER MODULE (3087v2)
... impedance and sensitivity. Make sure you start with the volume right down to check. A number of headphones may be driven from the one amplifier if you wish, since most headphones have at least 16 ohm impedance, or more commonly 32 ohm. ...
... impedance and sensitivity. Make sure you start with the volume right down to check. A number of headphones may be driven from the one amplifier if you wish, since most headphones have at least 16 ohm impedance, or more commonly 32 ohm. ...
Safety Precautions and Practices
... Always use the proper tool for the job, right type and size. When carrying tools, always keep the cutting edge down. Keep hands clean when using tools. Avoid grease, dirt, or oil on hands when using any tool. Clamp small pieces when using a hacksaw, screwdriver, or soldering ...
... Always use the proper tool for the job, right type and size. When carrying tools, always keep the cutting edge down. Keep hands clean when using tools. Avoid grease, dirt, or oil on hands when using any tool. Clamp small pieces when using a hacksaw, screwdriver, or soldering ...
Electrical Prototype Progress Document
... internal oscillators, or to use those which require external crystal oscillators. After considering the price difference, it was seen that using internal oscillators would add approximately $2 of overall cost to the devices as opposed to using external oscillators. The next item to consider was whic ...
... internal oscillators, or to use those which require external crystal oscillators. After considering the price difference, it was seen that using internal oscillators would add approximately $2 of overall cost to the devices as opposed to using external oscillators. The next item to consider was whic ...
Soldering and installation instructions. Assembling.
... T1 was a TO50 of SOT103 type N dual gate mosfet (BF960/982). T2 was a TO39 type NPN VHF transistor (2N3866 / 2N4427), cooled by a cooling star. PCB version 20160701 : Grounded holes now have a “thermal relief line” to make soldering easier. The following, more easy to obtain transistors are fitted : ...
... T1 was a TO50 of SOT103 type N dual gate mosfet (BF960/982). T2 was a TO39 type NPN VHF transistor (2N3866 / 2N4427), cooled by a cooling star. PCB version 20160701 : Grounded holes now have a “thermal relief line” to make soldering easier. The following, more easy to obtain transistors are fitted : ...
characteristics of passive circuit elements (r,l,c)
... The 4th band indicates the to1erance; a golden band indicates a tolerance of 5 %, while a silver band indicates 10 %. Absence of the 4th band implies a tolerance of 20 %. A brown band indicates 1 % tolerance. Experiment: Using the colour code, note down the values and tolerances of the different re ...
... The 4th band indicates the to1erance; a golden band indicates a tolerance of 5 %, while a silver band indicates 10 %. Absence of the 4th band implies a tolerance of 20 %. A brown band indicates 1 % tolerance. Experiment: Using the colour code, note down the values and tolerances of the different re ...
78M6612 Printed Circuit Board Layout Guidelines
... The 78M6612 can achieve excellent measurement accuracy using a 2-layer printed circuit board stackup. If the component density becomes too high resulting in insufficient plane flooding surface area, a 4-layer stackup must be employed. The plane flooding surface area is insufficient when the critical ...
... The 78M6612 can achieve excellent measurement accuracy using a 2-layer printed circuit board stackup. If the component density becomes too high resulting in insufficient plane flooding surface area, a 4-layer stackup must be employed. The plane flooding surface area is insufficient when the critical ...
Raw Materials in PS4
... copper foil bonded onto one or both sides. PCBs made from paperreinforced phenolic resin with a bonded copper foil are less expensive and are often used in household electrical devices. The printed circuits are made of copper, which is either plated or etched away on the surface of the sub ...
... copper foil bonded onto one or both sides. PCBs made from paperreinforced phenolic resin with a bonded copper foil are less expensive and are often used in household electrical devices. The printed circuits are made of copper, which is either plated or etched away on the surface of the sub ...
Course Outline
... A firm grasp of the fundamentals of electricity is the basis for becoming a successful electrical maintenance technician. All too often, maintenance personnel have to jump right into electrical maintenance with no training, or perhaps minimal on-the-job training that skips the fundamentals and focus ...
... A firm grasp of the fundamentals of electricity is the basis for becoming a successful electrical maintenance technician. All too often, maintenance personnel have to jump right into electrical maintenance with no training, or perhaps minimal on-the-job training that skips the fundamentals and focus ...
Solar Tracker CDS Circuit(NEW)
... made with three west LEDs and three east LEDs. A 1meg resistor and a 10n ceramic capacitor (103z) are also in parallel with the sensor. The sensor LEDs provide input voltage for two comparators on the LM339 chip with the variable resistor R2 providing a "dead zone" or sensitivity adjustment. Each co ...
... made with three west LEDs and three east LEDs. A 1meg resistor and a 10n ceramic capacitor (103z) are also in parallel with the sensor. The sensor LEDs provide input voltage for two comparators on the LM339 chip with the variable resistor R2 providing a "dead zone" or sensitivity adjustment. Each co ...
DIY Instrument Kit - Manual
... Resistors are used in a circuit to restrict the flow of electrical current and stop things from blowing up! The resistors are measured in Ohms. ...
... Resistors are used in a circuit to restrict the flow of electrical current and stop things from blowing up! The resistors are measured in Ohms. ...
View File - UET Taxila
... electrons can be stripped and separated acts as a capacitor. Practical capacitors are made of two conducting surfaces separated by an insulating layer, called a dielectric. The symbol used to represent capacitors in schematics reflects their physical construction with electrolytic capacitor (which m ...
... electrons can be stripped and separated acts as a capacitor. Practical capacitors are made of two conducting surfaces separated by an insulating layer, called a dielectric. The symbol used to represent capacitors in schematics reflects their physical construction with electrolytic capacitor (which m ...
TDA7000 RX FM Receiver
... Both halves of the circuit are identical. Both inputs have a dc path to ground via the input 47k control which should be a dual log type potentiometer. The balance control is a single 47k linear potentiometer, which at center adjustment prevents even attenuation to both left and right input signals. ...
... Both halves of the circuit are identical. Both inputs have a dc path to ground via the input 47k control which should be a dual log type potentiometer. The balance control is a single 47k linear potentiometer, which at center adjustment prevents even attenuation to both left and right input signals. ...
Surface-mount technology

Surface-mount technology (SMT) is a method for producing electronic circuits in which the components are mounted or placed directly onto the surface of printed circuit boards (PCBs). An electronic device so made is called a surface-mount device (SMD). In the industry it has largely replaced the through-hole technology construction method of fitting components with wire leads into holes in the circuit board. Both technologies can be used on the same board for components not suited to surface mounting such as large transformers and heat-sinked power semiconductors.An SMT component is usually smaller than its through-hole counterpart because it has either smaller leads or no leads at all. It may have short pins or leads of various styles, flat contacts, a matrix of solder balls (BGAs), or terminations on the body of the component.