identify this resistor

[astroiroc]

I'm working on a Total Power Europe power supply for a Gerber fast track 750 ploter. The PS mn is TPSF-135-4-A-ii. Its a no voltage output to any of the 4 dc volt terminals. The part I need help with is this resistor. I took a picture of it besde a similar on on the board so you could see the color difference. It looks to me to be, orange- white- silver- gold- black. Is this a ceramic axial resistor? When trying to decifer the color code, the silver or gray is throughing me off. What do you think the value may be. Can I use a different type of the same value to replace it. does the test seem out of range, if you can figure the value
http://i1374.photobucket.com/albums/ag408/genmar558/IMG_0424_zps7a427231.jpg

http://i1374.photobucket.com/albums/ag408/genmar558/IMG_0428_zpsb2a5512b.jpg

here is a different one that I have no trouble seeing the code to find the value, as you can see from the next pic, and it tests correct also.

http://i1374.photobucket.com/albums/ag408/genmar558/IMG_0426_zps19605ac6.jpg

http://i1374.photobucket.com/albums/ag408/genmar558/IMG_0427_zps899819ea.jpg

Thanks Mark

 

[Six_Shooter]

Resistor colours indicate 0.29 ohm. Your DMM likely is unable to read such a low resistance.

 

[astroiroc]

Thanks six shooter

Thanks for the reply. Can you help me understand how you came up with that value. the one picture shows it close to a similar one with red stripe so to me it looks orange. I get the white Why is there a silver and gold. in a 5 band resistor the multiplier should be the 4th band gold .1 help me understand please

 

[Six_Shooter]

That band looks red to me, which is 2, white is 9, silver is x0.01 (multiply by 0.01).

If the band was orange it would be a .39 ohm resistor.

 

[astroiroc]

don't use all bands

so don't pay attention to the gold and black bands why?

 

[Six_Shooter]

Gold would be a tolerance 5%.

I'm not sure what that black band is about. The colours don't make sense for a 5 band resistor.

 

[OLIVE2222]

The 5th band can maybe denote a fuse type or flameproof resistor type. This can make sense according to the low ohmic value.

Olivier

 

[davenn]

Resistor colours indicate 0.29 ohm. Your DMM likely is unable to read such a low resistance.

note he said OR WH
which indicates 39 which is a standard value (29 isnt 27 is)

and it definately looks OR WH compared to the BN RD RD on the resistor incircuit above it


Dave

 

[astroiroc]

thanks

Thanks evryone!! So is this a ceramic resistor and what other types can I use to replace it. Its a 3w .39 can't seem to find a ceramic one mostly metal film or wire wound.

 

[Six_Shooter]

Why does it have to be a "standard value"?

Regardless I stated the value if it is orange, it just looks red on my monitor in the picture. *shrug*

 

[davenn]

Why does it have to be a "standard value"?

..................

because unless its something really specialist, standard values would be the norm.

years of experience has taught me that

Dave

 

[Six_Shooter]

I guess I've taken apart many odd electronics then, many of which have non standard or non E12 values... *shrug*

 

[(*steve*)]

I guess I've taken apart many odd electronics then, many of which have non standard or non E12 values... *shrug*

Well, there are E24, E48, E96, and E192 values too.

29 (or 290) is not a standard value in any of these.

Really odd values are also likely to be high tolerance parts (sometimes they are wirewound power resistors too -- 5K or 50 ohms, or 8 ohms for special purposes -- but they're not marked with bands)

I would be leaning toward 39, even though the band looks more red than orange.

 

[astroiroc]

question

Thanks evryone!! So is this a ceramic resistor, and what other types can I use to replace it? Its a 3w .39 can't seem to find a ceramic one mostly metal film or wire wound.

 

[davenn]

its most likely a wirewound one for that wattage

any 3W wirewound resistor woll do

Dave