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Post by ChristoMephisto on Feb 10, 2008 14:34:31 GMT -5
Hi All,
A friend of mine left me his Ibanez Geo bass to mod for him. He wants it fattened up. It has a single humbucker pup, one volume and a toggle . The toggle is for a 15k in series, .015uf in series, or a combo of both. Other than replacing the toggle with a standard 250k/.047 tone combo, is there any other way to fatten up the sound? Would wiring it to the tone pot then the volume help? Vintage gibson/fender style? I've modded guitars and effect pedals, but bass guitars escape me.
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Post by ChristoMephisto on Feb 11, 2008 21:13:22 GMT -5
The first one is from '77, with the .022uf caps, and the second I guess would be the reissues being from '05.
Thanks for your help ChristoMephisto
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Post by ChristoMephisto on Feb 11, 2008 11:18:09 GMT -5
Didn't know they changed the switching system on the Swede that much. If you look at the original schems, you'll know what I'm talking about. Rumor had it Clapton used a .015 cap with the tone rolled back, yes, until you had told me the switch cap values were much different, I assumed it was the old values and was confused.
From what I've read about inductors is it boosts/cuts frequencies depending on the set up. Most are calculated to acheive a certain response. Did you check out the LC calculator link i posted?
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Post by ChristoMephisto on Feb 11, 2008 7:55:10 GMT -5
The switch adds the .015uf cap to ground to the tones path with the .022/tone pot. If you want the woman tone, you need to switch the caps at the volume and tone pots. Thanks for trying, yeah I do have the right angle toggle. Its only difference is one of the blades has the contact bump on the opposite side versus the pup selector.
cheers
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Post by ChristoMephisto on Feb 10, 2008 14:45:41 GMT -5
Here's some links that could help you www.guitar-mod.com/rg_passive.htmlwww.geocities.jp/dgb_studio/index_e.htmlook for the LC calculator I too have a vintage Swede, and the tone filter at the top is for sharp, mellow,deep. one goes in series with the .0047us, bypass, then add the .015uf cap to ground. Unforunately, I don't think mine is soldered/wired right. Like you said its an odd switch, slightly different than a 3 way pup selector. Would you have any pics of your switch, even if you did swap out the one cap for a .001. I can only get bypass and the deep sounds. This is really stumping me. Thanks ChristoMephisto
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Post by ChristoMephisto on Feb 28, 2007 4:23:04 GMT -5
Oh wow, good thing I asked, that sounds like it would really mess up my guitar. "as far as the different ways one can connect the cap and 2 terminals of the tone pot, they will all sound the same." funny you should mention that, my v-pot is wired normally, but my t-pot has the cap going to both the input and middle tab, gnd is normal. Thats stock too, don't think my 0.029uf 'red T-fish' cap is tho... (I love my Hagstrom Swede)
There must have been a reason the 50's Les Pauls had them, guess for obvious reasons its not a widely used wiring option used today. Wonder if you put a 500-1k Ohm resistor on the t-pot will it stop it from rolling all the way back so the sound doesn't bottom out...
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Post by ChristoMephisto on Feb 27, 2007 12:09:26 GMT -5
Has anyone tried teh lp 50's wiring shown on singlecoil.com? Its where you shift both ends of the tone cap and move the tone pot ground. I was looking for opinions on it on how it compare to modern wriring. You need to join to search their threads, and didn't want to register, not owning a lp and all.
thanx all
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Post by ChristoMephisto on Feb 13, 2007 21:02:59 GMT -5
I did have one mod where it has five caps in parallel and it had a slight 'verb to it it had tone stepping from 01,022,033,047 where i just added more caps inplay don't know if thats what you meant by multiple caps
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Post by ChristoMephisto on Jan 25, 2007 2:48:07 GMT -5
The way you describe the cap in parellel to the neck pup only is alot like my Teisco I posted about earlier. Re-examined it and corrected meself. The .05 cap is in paralell to the neck pup, the bridge bypasses the tone pot when the Solo is switched on. Trebel cut for the neck, and none for the bridge. When in R'thm both use the 05 tone pot. So I have a visual of how that is wired and works. Its in standard parellel tho. Still not sure how I went from Hi-band pass with caps in series to broadbuckin', but i guess it does go with what I am try to acheive. Still like the 003 cap in series sound, but would like to turn it off as well, have tone options (par. caps) and a series/paralell switch, adding a cap (value?) to the neck in series when in series wouldn't hurt either. Probably be another week or so til i get around to it, the 42yr old guitar is going in for a much needed neck refinish and a clear body coat. Thanks to all, you've been very helpful
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Post by ChristoMephisto on Jan 23, 2007 13:24:45 GMT -5
distance bewteen pups are 4 3/8", how does the distance effect it-less hum ? I had saw on some other schem site having a 01 cap in series when in series to the bridge, all it said was 'this fattens up the sound' never realized it was the same thing, back to the drawin book to figure this out Your DeArmond is sweet lookin'
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Post by ChristoMephisto on Jan 23, 2007 10:14:11 GMT -5
Hey Sumgai, Caps in series with the pups, also using caps in parellel at the same time. I searched through the forum and found some really interesting reading material in the caps in series. Google keeps giving me the treble bleed mod, and tons of ebay. Funny enuff I got a Teisco (Mustang body->Tele head) that adds a 05 cap in series to the neck pup in Solo leaving the Tone control for the bridge, and it uses three dpdt on/on (pups, r'thm/solo) waiting on a bridge from snailmail to play it and hear it for myself. Gonna go dig through the schems for ideas, I like the Broadcaster one, kind hard with 2 pups tho, maybe a cap on the neck before in series with the bridge
Thanks a bunch
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Post by ChristoMephisto on Jan 22, 2007 21:42:24 GMT -5
The pups are wired in standard parallel. Will probably swap in a series/parellel switch. Like the sound of teh broadbucker, could be a good option to explore. Kind limited with my options as its a vintage guitar and wont be altering the pickguard. It only has five dpdt swtiches and one vol pot with two single coils. (Hagstrom II '65) Guess it would be a bass cut, it get much louder/brighter when the series cap is engaged, someone else refered to it as a King Albert sound...then capping it with the parallel caps it cuts the treble fatting up some part, but like i said its not the best for strumming fast, great for pickin tho, gona have to wait til this weekend to show it off to my bass playin' friend, pretty sure he'll have a better idea, still curious about the sound. Don't think there is enuff info on the net about caps in series either...
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Post by ChristoMephisto on Jan 21, 2007 23:38:29 GMT -5
Finally came up with some sounds on my Hagstrom II. Originally it had two pup selectors, a .04uf tone switch and a 12k res to "mute" it, and a kill switch, to a single vol pot. Didn't want to mod this in a way to destroy the appearance from the outside even with mini-toggles, so i was restricing myself to the five dpdt sliders. Kept the two pup selectors, first tone adds .012uf, second adds .025uf, all four on/off. Added a 220k res to emulate a tone pot. The kill switch became a 01 parallel/003 in series. This allows for a Varitone of variety with a choise of 01,022,035,047uf. The series cap allows hi frequencies pass, and when a tone cap is added (012,025,037) it gets a fatty almost reverbery sound. IF that makes sense. Depending on the pup, its either good for strumming or pickin' Could anyone explain this, is this a mid boost with highs?
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Post by ChristoMephisto on Jan 21, 2007 23:48:08 GMT -5
Now theres something i can do to my friends guitar, he wanted a frankenstein anyway, he wants a speaker in it to like on the Teisco TRG-1.
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