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Tone Control

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sycamore
Posted 2013-04-03 6:28 AM (#469139)
Subject: Tone Control


Joined:
March 2007
Posts: 698

Location: Cork, Ireland
I made tone control using a 250KoHm log pot and a 33nF capacitor. It does nothing over most of the range (10 to 3), then suddenly kicks in between 3 and 1. Would it be better with a linear taper?
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muzza
Posted 2013-04-03 9:30 AM (#469140 - in reply to #469139)
Subject: Re: Tone Control



Joined:
August 2005
Posts: 3736

Location: Sunshine State, Australia

Capacitor should be OK, 250k seems a bit small For the pot. Try 500k or even 1 meg. Not sure about the log / lin choice, though I THINK log is for tone and linear is for volume.

Shoot off a message or email to McBarry, he's our resident tube amp guru down here.



Edited by muzza 2013-04-03 9:33 AM
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rick endres
Posted 2013-04-03 10:53 AM (#469141 - in reply to #469139)
Subject: RE: Tone Control


Joined:
August 2005
Posts: 616

Location: cincinnati, ohio
Uhhh...what?!
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MeredithI
Posted 2013-04-03 2:40 PM (#469148 - in reply to #469139)
Subject: Re: Tone Control



Joined:
November 2012
Posts: 135

Location: New Bern, NC
Over MY head!! And I thought I was pretty good at English! This sounds like "wah, wah, wah, wah, wah, wah..." to me. Remember the way the adults talk in the Charlie Brown cartoons? Yeah, like that. LOL I'm glad there are folks out there that know about this stuff so folks like me can move the little knob and say, "I like that sound."
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rick endres
Posted 2013-04-03 3:25 PM (#469151 - in reply to #469148)
Subject: Re: Tone Control


Joined:
August 2005
Posts: 616

Location: cincinnati, ohio
MeredithI - 2013-04-03 2:40 PM

Over MY head!! And I thought I was pretty good at English! This sounds like "wah, wah, wah, wah, wah, wah..." to me. Remember the way the adults talk in the Charlie Brown cartoons? Yeah, like that. LOL I'm glad there are folks out there that know about this stuff so folks like me can move the little knob and say, "I like that sound."



+1





Edited by rick endres 2013-04-03 3:26 PM
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BanjoJ
Posted 2013-04-03 4:05 PM (#469152 - in reply to #469140)
Subject: Re: Tone Control



Joined:
September 2012
Posts: 811

Location: Thredbo, NSW, Australia
muzza - 2013-04-04 2:30 AM

Not sure about the log / lin choice, though I THINK log is for tone and linear is for volume.

Shoot off a message or email to McBarry, he's our resident tube amp guru down here.



McBarry can give you the full details.

But my understanding is that you use log pots for volume as our hearing is logarithmic. I believe tone can be either and it depends on your preference.



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muzza
Posted 2013-04-03 8:29 PM (#469163 - in reply to #469139)
Subject: Re: Tone Control



Joined:
August 2005
Posts: 3736

Location: Sunshine State, Australia
Sounds about right. If there are only 2 possible options, I'll choose the wrong one every time.

Forgot to mention, regarding the capacitor value, all my schematics show the tone cap as either 0.0033uF or 0.01uF (3.3nF - 10nF)
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BanjoJ
Posted 2013-04-03 8:41 PM (#469166 - in reply to #469139)
Subject: RE: Tone Control



Joined:
September 2012
Posts: 811

Location: Thredbo, NSW, Australia
I recently added a pre-amp to my banjo, which already had a pickup but no volume control.

The pre-amp was a kit from Jaycar, but didn't have a gain control. So I had to do some research and found out where to put a pot in for gain control. Hence my knowledge of what type of pot to use.

I didn't look into adding a tone control, but then some would say the tone of a banjo is too bad to bother with!

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muzza
Posted 2013-04-03 8:48 PM (#469168 - in reply to #469139)
Subject: Re: Tone Control



Joined:
August 2005
Posts: 3736

Location: Sunshine State, Australia
Brace yourself mate, here come the banjo jokes...
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SOBeach
Posted 2013-04-04 10:45 AM (#469184 - in reply to #469152)
Subject: Re: Tone Control


Joined:
April 2010
Posts: 823

Location: sitting at my computer

BanjoJ - But my understanding is that you use log pots for volume as our hearing is logarithmic. I believe tone can be either and it depends on your preference.

ohh yeah... I can recall (sort of) those college parties where some pots adjusted the volume, some adjusted the tone.   ymmv


Skype Emoticons

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FlySig
Posted 2013-04-04 4:55 PM (#469198 - in reply to #469168)
Subject: Re: Tone Control



Joined:
October 2005
Posts: 4046

Location: Utah
muzza - 2013-04-03 8:48 PM

Brace yourself mate, here come the banjo jokes...


Like this one...

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BanjoJ
Posted 2013-04-04 5:49 PM (#469204 - in reply to #469198)
Subject: Re: Tone Control



Joined:
September 2012
Posts: 811

Location: Thredbo, NSW, Australia
FlySig - 2013-04-05 9:55 AM

muzza - 2013-04-03 8:48 PM

Brace yourself mate, here come the banjo jokes...


Like this one...



I already look like the guy on the left.


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Damon67
Posted 2013-04-05 12:55 PM (#469232 - in reply to #469204)
Subject: Re: Tone Control



Joined:
December 2006
Posts: 6994

Location: Jet City

BanjoJ - 2013-04-04 3:49 PM I already look like the guy on the left.

 

That's cuz you aready play banjo

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Glen C.
Posted 2013-04-05 1:51 PM (#469234 - in reply to #469139)
Subject: Re: Tone Control



Joined:
November 2009
Posts: 152

Location: Corpus Christi, TX
For three years, the young banjo player had been taking his brief vacations at this country inn. The last time he'd finally managed an affair with the innkeeper's daughter. Looking forward to an exciting few days, he dragged his suitcase up the stairs of the inn, and stopped short. There sat his lover with an infant on her lap!
"Helen, why didn't you write when you learned you were pregnant?" he cried. "I would have rushed up here, we could have gotten married, and the baby would have my name!"
"Well," she said, "when my folks found out about my condition, we sat up all night talkin' and talkin' and decided it would be better to have a bastard in the family than a banjo player."

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BanjoJ
Posted 2013-04-05 2:44 PM (#469239 - in reply to #469234)
Subject: Re: Tone Control



Joined:
September 2012
Posts: 811

Location: Thredbo, NSW, Australia
Ouch!

But I have three Ovation guitars and a vintage Takamine - BUT only one banjo.

I'm not all bad!



Edited by BanjoJ 2013-04-05 2:45 PM
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sycamore
Posted 2013-04-18 10:55 AM (#469660 - in reply to #469148)
Subject: Re: Tone Control


Joined:
March 2007
Posts: 698

Location: Cork, Ireland
Well I know enough to ask the question but not to answer it. Thanks everyone for the answers, I'll try some of them !
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