CLEAPSS DT - Supporting practical work in science, technology and art


Searching entire Technology Site for Electronics
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MRAT - 1.013 - Electrical and Electronics Work
MRATsProjects
The design and construction of items which will be connected to the mains supply where the use of electricity is peripheral (eg, lamps) or fundamental (eg, low-voltage power supplies for electronics).Instruction in the repair and maintenance of high-voltage equipment.The construction of electronics circuits from prepared modules or components.
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Matched: Electronics
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MRAT - 1.014 - Electronics: Chemicals for Printed Circuit Board Etching
MRATsProjects
To produce, by etching away unwanted copper, an electronic circuit board designed to meet a specific requirement.The prepared board is immersed in ferric chloride [iron(III) chloride] solution or sodium peroxodisulfate (persulfate) solution to etch away the copper. The board is sometimes cleaned with a solvent before or after soldering, formerly mainly 1,1,1-trichloroethane, now propan-2-ol (isopropanol) or other alcohols (eg, ethanol).
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Matched: Electronics
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MRAT - 1.015 - Electronics: Chemicals for Printed Circuit Board Preparation
MRATsProjects
To produce the track layout on a copper-clad board so that an electronic circuit can be made by etching away unwanted copper.This may be done by hand with an etch-resist ink pen or photographically using a transparent mask and a board coated with photoresist. 
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Matched: Electronics
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MRAT - 1.025 - Heat Processes: Soft Soldering, Fumes and Fluxes
MRATsProjects
The creation of a joint between the faces of sheet metal components or between wires and terminals using molten solder with a flux. 
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Matched: Electronics
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