hedd
Rookie Solder Flinger
Posts: 1
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Post by hedd on Mar 5, 2006 22:50:46 GMT -5
Hi board, first time poster! ;D I am currently upgrading the electronics in one of my guitars (older Ibanez FGM). I figured while I was at it I would shield it better since all it really has is a thin carbon? layer and some light foil on the control cavity cover, nothing special. I read the "Quieting the Beast" shielding tactic... I'm guessng overkill for this particular config since it only has one SC which is RW/RP in a HSH config. With that said and having no pickguard that leaves few options as far as shielding schemes are concerned. I was thinking copper foil in the control cavity and on the cavity cover, then just lining the single coil cavity and running a wire to connect the two foiled cavities? I have a capacitor lying around that suits the specs .... tell me if Im overdoing things, though that tends to be my thang anyway
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Post by CheshireCat on Mar 6, 2006 1:23:20 GMT -5
tell me if Im overdoing things, though that tends to be my thang anyway First, welcome to the board. Second, no, actually it sounds like you'd be underdoing it. Let me see if I understand you correctly . . . Is what you listed going to be all that you are doing? Or are you also going to keep the copper paint chassis seperate from the pickup system, by way of the recommended isolation cap? That's really the heart of the system anyway . . . the strings and chassis made from the copper tape (paint, aluminum foil, whatever) connected to the pickup system at a starground, isolated by a metal film isolation cap rated at .0.33uf, 400V. Whatever the actual application of copper or aluminum (in either paint, tape, or foil), plus the jumpers you use to connect the cavities, ends up actually looking like for your guitar's unique terrain is ultimately inconsequencial. The key thing is just that you have that coverage, and that you then follow John's other protocols. Aside from that, however you want to cover the cavities is your choice. Make sense? Chesh
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Post by sumgai on Mar 8, 2006 3:50:54 GMT -5
Welcome to CheshireCat's Rules for Guitar Mangling. Rule Number 1, restated: You can never have too much shielding!Words to live by. sumgai
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Post by dunkelfalke on Mar 8, 2006 5:44:34 GMT -5
yes you can ;D when the pickups are so shielded that they cannot pickup the string sound, then it is too much
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Post by sumgai on Mar 8, 2006 16:16:43 GMT -5
dunklefalk, Err, are you sure about that? Do yourself a favor, and grab a piece of shielding foil. Stick it under the strings, making sure that it doesn't touch the low E string. Make sure it does touch the high E string (thus grounding it). Turn everything on, and pluck the low E string. What happened? ;D sumgai
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Post by sumgai on Mar 8, 2006 16:19:39 GMT -5
BTW, Welcome to the forum, hedd! Wish we had a 'welcome' smilie for this function! Do as the article and ChrisK suggest. Your alternative is to do half a job, put it all together, listen in disgust as you realize that you'll have to take everything back apart to do the rest of the shielding job....... You get the point, right? sumgai
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Post by stratomaster on Mar 15, 2006 11:17:01 GMT -5
I read the "Quieting the Beast" shielding tactic... I am currently quieting my beast and the plans say to connect the 1/4" jack's "signal ground" wire to the shielding of the shielded twin-conductor audio cable, at the jack end only. I was wondering if it makes any sense to shield the guitars output jack cavity and jack plate. I could isolate the 1/4" jack plate from the jack terminals and then connect both ends of the shielded audio cable's shielding to the "chassis" ground (one end to the main cavity and the other to the ouput jack cavity). The jack plate would then be at chassis ground via the foil shielding. Please let me know what you think, and thanks for your input.
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Post by sumgai on Mar 15, 2006 20:58:48 GMT -5
stratomaster,
I shielded my jack cavity, but I made sure that the copper foil didn't rise up over the edge to make contact with the jack mounting plate. I ran another wire back to the central cavity to carry that ground/shield circuit to the central star point. Truth to tell, though, while there may be little benefit in doing so, I always have lots of copper foil left over from the rest of the job. I see this cavity, and I have plenty of foil, so .......
I suppose that you could also isolate the jack itself from the jack plate with a set of fiber insulating washers, but that seems like overkill to me. I mean, unless all of your cords have non-metallic sleeves on the plugs, then whenever you put your hand in that area, you're still at risk, right?
sumgai
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