Help for the colour blind

[bumpy]

Can anyone read off the value of this resistor for me please.

[Filterlab]

Not the best photo in the world, but from here it looks like 100Kohm +/-1%.

[bumpy]

Not the best photo in the world, but from here it looks like 100Kohm +/-1%.

Excellent, that’s what I remembered when I bought them 4 years ago. All paperwork is long gone ��

I have a passive 23 step resistor volume control and this is the shunt resistor. At present, having changed my power amp I am having to wind the volume pot nearly fully up for normal listening. So I will change the shunt resistors, but at about £20 a channel they are a bit too expensive to experiment too much.

Am I right in saying that a reduction from 100kohm to say 47kohm will give a worthwhile increase in volume at any step. I think I am remembering that the PVC had a shunt resistor of 15kohm when I bought it but at the time it was too loud at just one quarter up.

[Barry]

The resistor shown has 5 colour bands. Conventionally resistors have only 4 bands: three denoting the resistance and the fourth the percentage tolerance.

So for a 100K +/-1% resistor the colour coding, starting from the end of the resistor body nearest the lead-out wire, would be:

brown, black, yellow, brown. (10 x 10⁴ Ohms, 1%)

Your resistor replaces the third band with two bands (black and orange), which I presume means 100 x 10³ Ohms. It is not a convention I have ever seen before.

If in doubt just measure the resistor with an ohmmeter.

[bumpy]

The resistor shown has 5 colour bands. Conventionally resistors have only 4 bands: three denoting the resistance and the fourth the percentage tolerance.

So for a 100K +/-1% resistor the colour coding, starting from the end of the resistor body nearest the lead-out wire, would be:

brown, black, yellow, brown. (10 x 10⁴ Ohms, 1%)

Your resistor replaces the third band with two bands (black and orange), which I presume means 100 x 10³ Ohms. It is not a convention I have ever seen before.

If in doubt just measure the resistor with an ohmmeter.

Thanks Barry

Its an Audionote Tantalum 2w non magnetic. They do like to be different!

I tried measuring in circuit, but I know from the past that this can give errors

Cheers Chris

[Beobloke]

Hmmm, from the somewhat small and blurry photo, to me that looks like a standard 5 band resistor with colours that are Brown, Orange, Black, Black and Silver. (Silver being the tolerance band which is always spaced further away from the others)

Which means that one is 130 Ohms +/-10%

If the silver is actually grey then that makes it a 0.05%

[struth]

yeah i'd say 130 ohms as well

[willbewill]

yeah i'd say 130 ohms as well

Same here

[Filterlab]

Ahh, may be. It looks brown to me at the end, but I wasn't quite sure.

[bumpy]

OK

I hope this is better

DSC_6409.jpg