log law pots ratio?

[N_Cook]

I always thought log law was mid track resistance 10 percent of whole track.
Just come across a stereo slider in a Yamaha mixer amp labelled A10K x2 ,
fair enough meaning log, but mid track is 25 percent of 10K . Natural log
rather than to base 10 ? 25<>27

 

[Phil Allison]

" Nutcase Kook = Fuckwit "

I always thought ..

** A virtually impossibility....

log law was mid track resistance 10 percent of whole track.

** Yup.

Just come across a stereo slider in a Yamaha mixer amp labelled A10K x2 ,
fair enough meaning log,

** Nope.

but mid track is 25 percent of 10K . Natural log
rather than to base 10 ? 25<>27

** A = Audio Taper.

C or D = log.

E = reverse log.

Audio taper is a marketing compromise curve that sells amplifiers.




...... Phil

 

[Adrian C]

I always thought log law was mid track resistance 10 percent of whole track.

No. That's D-Taper, the pot I was after.

Just come across a stereo slider in a Yamaha mixer amp labelled A10K x2 ,
fair enough meaning log, but mid track is 25 percent of 10K .

K-Taper?

http://www.alps.com/WebObjects/catalog.woa/E/PDF/Potentiometer/RV_RESISTANCE.PDF

Phils smoking pot again...

 

[Phil Allison]

"Adrian ****"

K-Taper?

** FFS moron - it says " A" taper !!


.... Phil

 

[Adrian C]

"Adrian ****"


** FFS moron - it says " A" taper !!

Would that be 10A, 15A or 25A?

Idiot.

 

[Phil Allison]

"Adrian Cunthead"

Would that be 10A, 15A or 25A?

** Irrelevant.

Nothing says it is an Alps pot at all.

And nothing says Nutcase Kook measured it correctly.

You fucking stupid, lying ****.




..... Phil

 

[Adrian C]

** Irrelevant.

Nothing says it is an Alps pot at all.

Or says your name is Susan ...

Is it?

 

[William Sommerwerck]

** FFS moron - it says " A" taper !!

A tapir is an ungulate animal. See...

http://en.wikipedia.org/wiki/Tapir

 

[N_Cook]

"Adrian ****"



** FFS moron - it says " A" taper !!

The factory could have installed the wrong elements.

Assuming Cook is measuring the midpoint resistance as part of some
troubleshooting process on a customer's defective equipment, I'd like
to know (1) was this channel always bad? and (2) what reading he gets
from the other channels. This would show if it's an isolated
manufacturing mistake, or if the pot was damaged during operation. If
the midpoint resistance was the 1K that the A-taper suggests, then if
some fault drove it to 2.5K, I would expect the overall resistance to
be 1.5K (or better) more. I'd like to know (3) what the overall
resistance now is (4) for both sides of the pot, (5) for similar parts
from the other channels, because I can't picture the same fault
condition affecting multiple channels identically at the same time.

++++++

Back up together enough for testing now. Only one one pot removed.
Actual reading was 11.2K and 8.7K/2.5K midpoint and to about +/-0.1K same
readings the other track . Whether that out of speciness from 10K indicates
overheating or something I've no idea but is is same both sides

 

[Phil Allison]

" Nutcase Kook "

The factory could have installed the wrong elements.

** Shame how YOU have the wrong brain installed.

Donkey brains instead of human.

25% at mid point is within tolerance for an " A " taper pot.

You bullshitting, fuckwit, autistic retard.




..... Phil

 

[Phil Allison]

"spamtrap1888" = fuckwit TROLL

** Shame how YOU have the wrong brain installed.

Donkey brains instead of human.

25% at mid point is within tolerance for an " A " taper pot.

And just where does that factoid come from?


** The real world - a place you have never even seen.

You bullshitting, fuckwit, autistic retard.



..... Phil

 

[Phil Allison]

"spamtrap1888" = fuckwit TROLL

And just where does that factoid come from?

** The real world - a place you have never even seen.

You bullshitting, fuckwit, autistic retard.


..... Phil