Resistor identification

[Mecca]

Hi everyone. I have a resistor I'm struggling to identify. The four bands are either Brown - Black - Brown - Black, or Black - Brown - Black - Brown.
I think I'm right that Black can't be a tolerance figure as it is zero. So this would make the resistor 1 ohm with 1% tolerance. Reading it the other way round would make it 100 ohms with 0% tolerance. It's about 20mm long so I'm guessing maybe 5 to 10W? Can anyone help with this? FYI it is wired in series with a second identical resistor.
I suppose I could remove the good one and just measure the resistance. But any ideas on the wattage?

 

[mattylad]

Looks like the 1 ohm, I'd say 1/2w,possibly 1w. putting a 1w in wont hurt assuming it fits.

If it's in series, how come only 1 has gone?

 

[bernardgreen]

The normal arrangement of a 4 band marking is that the gap before the tolerance band is wider than the gap between the value bands.

I am wondering if this resistor is a fusible resistor as the markings / gaps on fusible resistors do not always follow the system for ordinary resistors. They may be an in house part number and not the value.

Selecting a replacement fusible resistor requires some care as they are invariable a safety device.

 

[Mecca]

If it's in series, how come only 1 has gone?

I don't know, maybe they both have, maybe neither have and the fuse blew first. Only one is visibly damaged and the leg is loose in the pcb, perhaps as a result of overheating but also could be the cause.

 

[Mecca]

The normal arrangement of a 4 band marking is that the gap before the tolerance band is wider than the gap between the value bands.

I am wondering if this resistor is a fusible resistor as the markings / gaps on fusible resistors do not always follow the system for ordinary resistors. They may be an in house part number and not the value.

Selecting a replacement fusible resistor requires some care as they are invariable a safety device.

This is interesting, I'll investigate...

 

[SUNRAY]

Hi everyone. I have a resistor I'm struggling to identify. The four bands are either Brown - Black - Brown - Black, or Black - Brown - Black - Brown.
I think I'm right that Black can't be a tolerance figure as it is zero. So this would make the resistor 1 ohm with 1% tolerance. Reading it the other way round would make it 100 ohms with 0% tolerance. It's about 20mm long so I'm guessing maybe 5 to 10W? Can anyone help with this? FYI it is wired in series with a second identical resistor.
I suppose I could remove the good one and just measure the resistance. But any ideas on the wattage?

If it is a resistor (which is my first guess) it'll be 1Ω 1%. Judging by the estimate of 20mm long I'd opt for 2W (or possibly 3W). Good luck with adequately measuring 1Ω.

Unlikely they would put 2 fuses in series.