log law pots ratio?

N

N_Cook

Guest
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
 
" 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
 
On 29/02/2012 11:42, N_Cook wrote:
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...

--
Adrian C
 
"Adrian Cunt"

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?

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


.... Phil
 
On 29/02/2012 19:22, Phil Allison wrote:
"Adrian Cunt"

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?

** FFS moron - it says " A" taper !!
Would that be 10A, 15A or 25A?

Idiot.

--
Adrian C
 
"Adrian Cunthead"

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?

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

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 cunt.




..... Phil
 
On 29/02/2012 20:06, Phil Allison wrote:
Would that be 10A, 15A or 25A?


** Irrelevant.

Nothing says it is an Alps pot at all.
Or says your name is Susan ...

Is it?

--
Adrian C
 
On Feb 29, 11:22 am, "Phil Allison" <phi...@tpg.com.au> wrote:
"Adrian Cunt"

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?

**  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.
 
spamtrap1888 <spamtrap1888@gmail.com> wrote in message
news:ee3b4058-62fc-49a3-b6c0-3799284323d7@w27g2000yqm.googlegroups.com...
On Feb 29, 11:22 am, "Phil Allison" <phi...@tpg.com.au> wrote:
"Adrian Cunt"

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?

** 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
 
" Nutcase Kook "


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?

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


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
 
On Mar 1, 1:32 am, "Phil Allison" <phi...@tpg.com.au> wrote:
" Nutcase Kook "

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?

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

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.
And just where does that factoid come from?

While you're pulling things out of your ass, check for hemorrhoids.

   You bullshitting, fuckwit,  autistic retard.
A badge of honor.
 
"spamtrap1888" = fuckwit TROLL

K-Taper?

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

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.
And just where does that factoid come from?


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

You bullshitting, fuckwit, autistic retard.



..... Phil
 
On Mar 1, 2:22 pm, "Phil Allison" <phi...@tpg.com.au> wrote:
"spamtrap1888"  = fuckwit TROLL



K-Taper?

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

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.

And just where does that factoid come from?

** The real world  -  a place you have never even seen.
Sample size = 1?

I suppose, though, in Allison World the pot could be linear -- 25%
ratio is closer to 50% (nominal linear value at midpoint) than it is
to 10% (nominal audio taper at midpoint)

 You bullshitting, fuckwit, autistic retard.
Talking out your ass harms one's credibility.
 
"spamtrap1888" = fuckwit TROLL
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
 
On Mar 3, 1:06 am, "Phil Allison" <phi...@tpg.com.au> wrote:
"spamtrap1888" = fuckwit TROLL



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
Here's a report from a hobbyist who found that the 50% point of common
"audio taper" potentiometers ranged from 6% of total resistance to
15%. So the source of Phil's data -- 25% -- still seems to be his ass.

http://tangentsoft.net/audio/atten.html
 

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