07-28-2012, 09:24 AM
|
#1 |
|
Registered User
Join Date: Aug 2005
|
Uneven volume taper on my tele - have I wired something wrong?
After one of many mods my tele volume pot seems to have a very uneven taper - the first quarter turn puts the volume at about 10%.
I think it was when I changed it to 50s wiring, but I've now changed it back and there's no change. I don't think I changed the pot. The one that's there now is a 250k audio pot -and I think that's what it should be, right? I think the tone pot is the same but much of the writing is obscured. I measured the volume pot. It's 216k at full and when turned halfway it measures 191k. That doesn't sound linear. Does it sound right for a log pot? Over the last few days I've tried a few different wirings, but no change. So could it be the pot? Or something else in the wiring? Diagram below (I've got texas specials and a 4 way switch at the moment, hence the extra wires. The issue I'm having pre-dates the installation of the specials). Any suggestions?  |
|
|
|
07-28-2012, 09:54 AM
|
#2 | |
|
UG's Krabby Patty
Join Date: May 2009
Location: mordor
|
I don't think audio taper is what you want for volume...
__________________
Call me Chris  Quote:
Ducks and guitars or fish and guitars. I lead a simple existence |
|
|
|
|
|
07-28-2012, 10:02 AM
|
#3 | |
|
Registered User
Join Date: Feb 2011
Location: NSB, FL
|
Quote:
No Audio is what you want for volume, and Linear is what you want for tone. What type(brand) pot are you using? Alpha are not bad, but Bournes and CTS are much better.
__________________
2002 PRS CE22 197? Sanox Sound Creator LP clone (GFS Fat Pat) 2009 Epiphone G-400 (SH-4) Marshall JCM2000 DSL100 Krank 1980 Jr 20watt Krank Rev 4x12 (eminence V12) GFS Greenie/Digitech Bad Monkey Morley Bad Horsie 2 MXR Smart Gate Last edited by Robbgnarly : 07-28-2012 at 10:03 AM. |
|
|
|
|
07-28-2012, 10:10 AM
|
#4 |
|
UG Resident
Join Date: Apr 2005
Location: Slovenija
|
Between what two lugs did you measure that resistance?
|
|
|
|
|
07-28-2012, 11:31 AM
|
#5 |
|
Registered User
Join Date: Aug 2005
|
I measured the resistance across the centre and outside lugs (from the lug that normally goes to the output jack to the one that goes to the selector switch). Obviously I took the wires off first.
I can't remember what pots are. I think they are the stock pots. But I've had this for years and not had this taper issue before |
|
|
|
|
07-28-2012, 01:45 PM
|
#6 |
|
Please, call me Pig.
Join Date: May 2010
Location: USA
|
Might be worth it to get better pots. I don't see what else the problem could be.
|
|
|
|
|
07-29-2012, 04:46 PM
|
#7 |
|
Registered User
Join Date: Aug 2005
|
Hmm. Well I've nothing to lose and have ordered some cts pots. Don't think I'll have it sorted before my studio session this week, but I shouldn't have left it so late!
|
|
|
|
|
07-31-2012, 02:07 PM
|
#8 |
|
Has a Pet Whale
Join Date: Dec 2009
|
The question he asked was if that sounded right for log.
The short answer is yes, *AUDIO TAPER IS NOT LINEAR*. Most log pots do not sound linear because you might be used to a linear pot taper, though many cheap log pots aren't an actual log taper. http://sound.westhost.com/pots.htm -Read the section on pot tapers.
__________________
I'm up for building you a pedal.
(Or modding nearly anything moddable) (PM Me.) |
|
|
|
|
11-22-2012, 08:40 AM
|
#9 |
|
Registered User
Join Date: Nov 2012
|
Indeed you would want to use audio taper for the volume control and this is logarithmic (because the human ear is logarithmically sensitive to audio volume). Most log/audio pots are constructed from 2 different resistance strips which mimic logarithmic behavior, however this is good enough for the human ear. Perhaps for your guitar it would be better to get a good audio taper pot, you could try a plastic film type, they are very smooth.
more on audio taper |
|
|
|
 |
«
Previous Thread
|
Next Thread
»
| Thread Tools | Rate This Thread | |
|
|
All times are GMT -4. The time now is 07:08 PM.