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Identifying an electronic component

I have a component that looks like a resistor but only haves two colour bands could you suggest what it may be it is on the circuit board of an incubator

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Some wide-tolerance resistors only had 2 color bands. The body is the 3rd color. It could also be an inductor or capacitor. It really depends on its place and function in the circuit.

Posted on Mar 22, 2008

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In the leads is Cylinder with a gold, brown, black & silver band. Is it a fuse? How do I get one?


The cylinder is a resistor. The value and the tolerance is denoted by the coloured bands and the wattage rating by the physical size.

Available from electronic repair shops and constuctor outlets.

The colour code is quite universal and helpfully included in most catalogues.

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Look up "resistor color code" online. The first two color bands are numbers and the 3rd band is how much you multiply the number by. For instance, a Red, Brown, Orange is a 10,000 ohm (10K) ohm resistor, the orange means 3, but 3 digits. If NOT totally burned-up, you can measure the resistor if you disconnect one lead from the circuit.

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Go to an electronics parts shop and take the damage resistor with you.

The bands are a colour code (the first two bands indicate the first two numbers, the 3rd one is for the number of zeros and the fourth one is the accuracy of the value e.g. 5%, 10%) for the value of the resistor.

The physical size of the component gives an indication of the current that it can carry.

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I have the same exact problem in a 12 volt Lincoln battery charger. Burned resistor in R5.

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Schematic (or just R10) for Rampage AMP522A Car Audio Amplifier


2 years later... I just picked one of these up at a yard sale... R10 is actually a diode. The code is buried, but ends in N1.
Hope this helps!

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It is very tempting to start soldering components onto the circuit board straight away, but please take time to identify all the parts first. You are much less likely to make a mistake if you do this! 1. Components stuck onto paper Stick all the components onto a sheet of paper using sticky tape. 2. Identify each component and write its name or value beside it. 3. Add the code (R1, R2, C1 etc.) if necessary. Many projects from books and magazines label the components with codes (R1, R2, C1, D1 etc.) and you should use the project's parts list to find these codes if they are given. 4. Resistor values can be found using the resistor colour code which is explained on our Resistors page. You can print out and make your own Resistor Colour Code Calculator to help you. 5. Capacitor values can be difficult to find because there are many types with different labelling systems! The various systems are explained on our Capacitors page.

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If your are still looking for this...

According to the service manual, R218 is a flame proof carbon resistor of value: 4.7Kohm 1/4Watt

Marc

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R10 just means Resistor # 10 unfortunately this is just to make the manufacturing process easier.... However reistors are marked with their value(using coloured bars), if you can read the bars you can get a replacement for it, and hence if you can decode the bars you will know what the value of that resistor is Black = 0 Brown = 1 Red = 2 Orange= 3 Yellow= 4 Green = 5 Blue = 6 Violet= 7 Grey = 8 White = 9 therefore if you have a sequence of red green black then you have a 250 ohm resistor, gold, silver and bronze bands on the other end of the resistor designalt tolerance and should be noted Just hope that it was only the resistor that got toasted Good luck

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