martinsomerville
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martinsomerville [2008/12/06 15:42] – martinsomerville | martinsomerville [2008/12/06 16:02] – martinsomerville | ||
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* 8 10kOhm resistors (try get 1% tolerance - gold band at end). | * 8 10kOhm resistors (try get 1% tolerance - gold band at end). | ||
* 0.5m of insulated wire to connect switches and resistors to the bread board. | * 0.5m of insulated wire to connect switches and resistors to the bread board. | ||
+ | * A 9V 500mA AC adapter. Don't worry about the connection end type for now. | ||
The following equipment is needed for preparation and soldering: | The following equipment is needed for preparation and soldering: | ||
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- [[http:// | - [[http:// | ||
- [[http:// | - [[http:// | ||
+ | * One thing I reckon you shouldn' | ||
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* Go slowly, even one leg at a time for fragile components (although getting a little run going seems to work fine at times - it's just there won't be the heat defusing clip attached to all of them) | * Go slowly, even one leg at a time for fragile components (although getting a little run going seems to work fine at times - it's just there won't be the heat defusing clip attached to all of them) | ||
* After every group of solders, check, with a multimeter, every connection through to a common (same voltage - zero resistance) hole on the board. That is, in resistance mode, place a tip on the wire and the other tip on the connecting board hole via a trace. Check with the schematic to find appropriate testing points. | * After every group of solders, check, with a multimeter, every connection through to a common (same voltage - zero resistance) hole on the board. That is, in resistance mode, place a tip on the wire and the other tip on the connecting board hole via a trace. Check with the schematic to find appropriate testing points. | ||
+ | |||
+ | * While you are at Jaycar, buy 3 kits and practice your soldering. When you finish one and it is functional, then start on your core. | ||
==HOW TO USE A DIGITAL MULTIMETER== | ==HOW TO USE A DIGITAL MULTIMETER== | ||
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* Black lead - in common port (COM) and to placed closest to the negative side of voltage source (Vss) or ground.{ Get confused about ss. Stands for source or electron flow (as opposed to conventional flow + to -) or surplus of electrons?? Source destination. or surplus and deficit/ | * Black lead - in common port (COM) and to placed closest to the negative side of voltage source (Vss) or ground.{ Get confused about ss. Stands for source or electron flow (as opposed to conventional flow + to -) or surplus of electrons?? Source destination. or surplus and deficit/ | ||
* Don't put the red lead in the amps socket (only the ohms and volt socket). Rarely check for amp and can do damage - only check current if you disconnect the wire you are testing the current so DMM is run in series with circuit. | * Don't put the red lead in the amps socket (only the ohms and volt socket). Rarely check for amp and can do damage - only check current if you disconnect the wire you are testing the current so DMM is run in series with circuit. | ||
+ | * If you don't have a continuity tester that beeps then just use the resistance setting and test for close to zero resistance. | ||
+ | |||
+ | ==SOME BASICS IN ELECTRONICS== | ||
+ | * Read volume one of http:// | ||
martinsomerville.txt · Last modified: 2008/12/06 16:03 by martinsomerville