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Step 5Super extra bonus step!!
This is a super extra bonus step for the very few people that got posted a 47ohm resistor instead of a 0.47 ohm resistor like I did, and are resentful at the ridiculous prices of Maplins and the fact it would actually involve going outside to catch the bus to get to Maplins, only to have to explain to the guy behind the counter what a resistor is, then get sold the wrong one anyway, but not realise until you get home. So the above situation repeats itself indefinitely in a ground hog day type escapade.
Enough of this silliness, here's what i did to change the value of a 47ohm resistor to 0.47 ohms.
1.) Slowly crush the ceramic type coating around the resistor with a pair of pliers, don't scrape it otherwise you'll damage the very fine wire.
2.) Once all the outer coating is removed unsolder the fine wire from one side of the metal end caps.
3.) Make a connection straight across the 2 end caps with the wire, and measure its resistance. if its not right make another another connection straight across with another length of the thin wire. this can get pretty fiddly.
4.) Wrap it up in tape
note: This is a very silly idea, the resistor cannot handle 3w's any more, and tends to get pretty hot when used in the circuit, i did this because I was desperate, and include it merely as a point of interest.
Enough of this silliness, here's what i did to change the value of a 47ohm resistor to 0.47 ohms.
1.) Slowly crush the ceramic type coating around the resistor with a pair of pliers, don't scrape it otherwise you'll damage the very fine wire.
2.) Once all the outer coating is removed unsolder the fine wire from one side of the metal end caps.
3.) Make a connection straight across the 2 end caps with the wire, and measure its resistance. if its not right make another another connection straight across with another length of the thin wire. this can get pretty fiddly.
4.) Wrap it up in tape
note: This is a very silly idea, the resistor cannot handle 3w's any more, and tends to get pretty hot when used in the circuit, i did this because I was desperate, and include it merely as a point of interest.
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.47 ohm wirewound power resistors, 3W rating.
I "tinied" it, as the actual link is 252 characters long, but it's a search on www.mouser.com for the device.
Mouser does not charge a small order fee, and will ship internationally..