morphball
Joined: Dec 23, 2008
Posts: 3324
Pittsboro, NC
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Posted on Dec 01 2010 06:00 PM
Thanks Spy- I ordered a guard with only the switch routing from Whoremoth and drilled the others myself. I tried using a very complex algorithm to determine the optimal locations, but mostly ended up just eyeballing it:
image
The volume is about 22mm further from the bridge pup than the standard, in order to address an ergonomic issue I have; the tone is about an additional 45mm away from the volume, which is slightly more spread out since there's extra room. I barely ever use one tone knob (much less two), so this makes a whole lotta sense to me.
— Mike
http://www.youtube.com/morphballio
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morphball
Joined: Dec 23, 2008
Posts: 3324
Pittsboro, NC
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Posted on Dec 01 2010 11:25 PM
So, as planned, I desoldered all ground connections, and re-soldered to create a more continuous ground- plugged her in again, and UGH! the damn thing was still humming just like it was in the video! Rather than chucking it across the room, I had the bright idea to load some batteries into my micro cube, relocated to an area of the apartment that is lacking electrical appliances (lights, computers, etc.) and WHAM-O suddenly it's perfectly quiet except for the tapping noise! Probably this whole thing was a mix between an ungrounded AC current and typical 60 cycle hum.
I'm kicking myself for not considering these very common environmental factors, but happy to know my first wiring job is solid and that I can move on to the rest of the build. (I'm considering better shielding now.) Anyway, many lessons learned this time; thank you all for the input.
— Mike
http://www.youtube.com/morphballio
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spy
Joined: Mar 29, 2007
Posts: 815
Athens, Greece
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Posted on Dec 02 2010 09:37 AM
Morphball, try to solder all the ground wires at one point ie the volume pot. It will prevent any ground loop.
— Every word is like an unecessary stain on silence and nothingness.
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morphball
Joined: Dec 23, 2008
Posts: 3324
Pittsboro, NC
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Posted on Dec 02 2010 12:10 PM
spy
Morphball, try to solder all the ground wires at one point ie the volume pot. It will prevent any ground loop.
That's what I ended up doing last night; I then made a wire bridge from that single solder point on the volume pot to the ground end of the tone cap, as the Seymour Duncan site suggests. It actually had little effect believe it or not, but I'm glad I did it anyway. I then used my best cable (a 20' Mogami w/ G&H plugs), and noticed it was slightly better (superior shielding compared to what Planet Waves uses, I guess), and the hum almost went away just by griping the cable... I'm no electrician, but that had me thinking the grounding problem may be occurring further up the chain, which was confirmed when I took the AC connection out of the equation. Tonight I think I'm definitely going to add an aluminum shield to the guard and some copper tape to the cavities, seeing how much my environment effected these single coils.
— Mike
http://www.youtube.com/morphballio
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