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DeFrag
Moderator
USA
3409 Posts |
 Posted - 02/08/2008 : 16:05:13
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Have you guys heard of this? Sounds like it would be great (no pun intended).
Normally, when you roll down your volume, you loose treble response. Most people just wire in the capacitor & under about 5 it sounds a bit too shrill. This mod compensates for the treble loss.
It is a .002MFD capacitor and a 100K resistor in parallel across the 2 terminals of a volume pot that is NOT grounded. Just twist the legs together and solder it in! |
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Dr. Bob
Moderator
Australia
6593 Posts |
Posted - 02/08/2008 : 16:27:39
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Hi DeFrag
The cap is a common fix for the treble roll off.
The resistor & cap in parallel is becoming more common these days.
You might disagree with me, but I actually rely on the treble roll off effect on my Blackie Strat & the Tele 52RI
I use this to my advantage,
I actually can start to hear the roll off a just under 9 on the Blackie, & I use it for chord work & mellow bits.
Then When I need the audiences attention, I max out the vol to 10,
a whole 1 or 2 points on the dial, & I get that much sought after mid boost & sparkle that we need, when trying to cut through the mix.
and without a boost pedal.
or to tame a pedal setting that's a bit too bright.
I'm getting Old & set in my ways, so don't yell at me.
And it was the way, all old guitar sounded when I was growing up.
Not to mention that I have a greater range of tones that way.
My other humbucker fitted G-808 has the res-cap in parallel addition.
as the buckers tend to sound dark with some amps.
It will be interesting to hear the opinions of the other forum members.
Remember be gentle, I'm getting frail .. 
Regards Dr. Bob |
Edited by - Dr. Bob on 02/09/2008 02:55:05 |
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DeFrag
Moderator
USA
3409 Posts |
Posted - 02/08/2008 : 17:00:31
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Strange, the forum counter said 0 replies yet Bob had replied.
Anyway, are the component values accurate Bob?
What changes would exhibit themselves differently?
Shouldn't the values BE different for different volume pots? |
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ChristoMephisto
Platinum Member
Canada
1288 Posts |
Posted - 02/08/2008 : 17:10:08
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I installed a treble bleed mod on my single coil guitar (two pups) and really makes a difference, a .001/150K parallel combo.
'specially since this guitar has no tone pot, only toggle switches and one volume pot. Does that make you feel less older now Dr.Bob?
Wouldn't be a bad idea for my dual humbucker g'tar, but she sounds good low
Some suggest different values for different pups too...
http://www.ratcliffe.co.za/articles/volumepot2.shtml
"a 130K Ohm resistor in series with a 0.0012mf capacitor, which works well for most Strats. Also for Strats, pickup guru Seymour Duncan likes a 100k resistor in parallel with a 0.002mf cap. The parallel resistor actually changes the taper of the pot to better match the amount of treble bleed. My preference is for a series resistor as I do not like the change in volume taper. For humbucker guitars, I like just a 0.001mf cap with no resistor."
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Dr. Bob
Moderator
Australia
6593 Posts |
Posted - 02/09/2008 : 03:04:16
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Hi Defrag & guys
I think/hope that Christo just answered your question/s.
Although I haven't go off & read his link yet.
Defrag are you interested because you want to mod one of your guitars?
BTW, I'm not too sure I like the idea of adding another 100K/150K or so in series with the volume pot, as in the excerpt?
As I stated, I prefer to have the treble bleed, for the reason I stated in my previous post.
As for the Zero replies, it might be because the forum timed-out, when I posted my reply lat night, & when I hit refresh, it seems to have posted the reply twice (2), so I deleted one of the replies.
Might be some low level glitch in the forum code, it is running on a PC WinDOZ platform.  Just kidding guys...
Regards Dr. Bob |
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Dirk
Platinum Member
Netherlands
1309 Posts |
Posted - 02/09/2008 : 10:05:39
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I tried adding that cap mod to my P bass, but I didn't like cause the tone pot started acting all weird, it's range seemed to have altered.
I also noticed when you get rid of the tone control completely, the guitar or bass sounds a little louder and a little brighter but I liked the sound better with the tone control in place and turned up full.
Besides, I tend to use it a lot for mellowing down the sound on ballady or bluesy type songs and turning it up full when playing AC/DC  |
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Treble Bleed
