Guitar question, Active+passive pup config?
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Posted on Feb 16, 2011 01:29 pm
Quincysan
http://www.unitedmusicians.info
Contributor Since: Nov 11, 2007
Deleted By Quincysan
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Quincysanhttp://www.unitedmusicians.infoContributor
Since: Nov 11, 2007
Feb 16, 2011 02:24 pm After some research, looks like I'd need a separate volume pot for the active pup and the passive pup at the very least. I'm not wanting to complicate the knob'ery on my guitar (especially considering that I'm very interested in adding that highpass/lowpass concentric tone pot some day) . So I think I should probably just find a passive humbucker that works.
But! If you've seen schematics for a way to wire up an active pup with a passive pup using two existing knobs: a 3 position rotary switch and a ???k volume pot I'd be interested.
Feb 16, 2011 03:22 pm Normally, an active pickup takes a 50k pot to bring the signal down, and a 10k pot for passive.
Signal strength vs. resistance equals final output current. Ohm's law E/R = I
Feb 16, 2011 03:29 pm One other thing that your going to need is a filter cap. Otherwise you could get high oscillations, and get high frequency feedback from the pickup.
Typical would be around .22uf or .47uf @ 16v cap in parallel to ground. But, in designing your own, there is usually nothing typical. I'll look around and see if I can't find you a few good schematics.
Quincysanhttp://www.unitedmusicians.infoContributor
Since: Nov 11, 2007
Feb 16, 2011 09:08 pm Did you mean to link the same page twice. That idea is great! I don't have any idea what it would sound like to play through JUST the outer/inner coils of a humbucker so not sure about that...but that coil filter feature sounds very desirable.
Either way, so long as I'm sticking with passive humbuckers...I've really liked the demo's I've heard of the Seymour Duncan SH 10 "Full Shred". The duncan SH4JB (Jeff Beck) came highly recommended from friend of mine with similar tastes in bridge position humbuckers.
Feb 16, 2011 10:03 pm Hummm. It takes you to the same page on both links......... Sorry about that. It was suppose to take you to a schematic, and then the main page.
I'm not sure how that would sound either. But, might be worth a try. It's easy enough to change it in and out.
Dematrixhttp://www.reverbnation.com/2ndgMember
Since: Nov 27, 2007
Feb 17, 2011 02:51 am seems like you got it sused out, but i would just like to say the term "knob-ery" is fantastic!
