Kyle Cavanaugh

I know a number of companies that produce those types of preamps\EQs for bass, but not guitar. I'd check out Bartolini, though. Carvin makes and sells one fo $80 but it only has treble and bass I believe. The midrange control is definetly more complex to design so I think that's why they left it out. I'm working on designing exactly what you're talking about right now though, so if you have no luck, maybe I could hook you up later down the line.

I'm sure Warmoth or USA Custom could help you with the neck and body if you don't feel like you can do it all yourself. They make semi-hollow bodies with the option of an F-hole. I'd guess it'd still run you about $500 USD though.

Is that a fishing rod you used?!?!?! Makes perfect sense! I'm currently using an old sewing machine, some plywood, and Jason Lawlor's "Complete Guide to Building Your Own Pickup Winder" to build a winder. I'm also going to build a 4-digit decade counter triggered by a magnetic reed switch and have a magnet attached the thing holding the bobbin on so it can count how many winds I've made.

Awesome! I really like how you inverted the Black and Yellow for the pickguard. Did you make the pickguard out of wood or something so it could be painted, or is it that new Fusion stuff?

"See What It Looks Like" LOL

Yeah, I studied more about op-amps. I was wrong, the 4558's are dual op-amps, duh! Hmm, it would be interesting to mod a tubescreamer to have 2 741's then...

The right channel positive on the stereo jack is being used to switch the preamp on and off (completing the circuit by connecting the negative lead of the battery), not as a stereo input or output.

That is very awesome!

Ya know what? I think I was looking at that same top for another project! Oh well, the guy over at Gallery Hardwoods normally has more than one from the same log. At least I know it's being put to good use! That thing is turning out really cool!

What are you going to use for a baseplate? I'd think it'd be pretty cool to use steel so it acts like a magnetic reflector like on the tele bridge pup! I assembled a bucker from two cheap ceramic single coils and a brass baseplate some time ago and put it in the neck position. Even in parallel, it was signifigantly louder than the bridge pup which was a normal bucker even though I had adjusted the height properly. The bar magnets were actually in the coil with slugs directly above it and they rated 8K a piece and were wound as much as possible (43 AWG?), so that might explain it. It did sound pretty decent, but probably would've worked better as a bridge pup. I did switch back to the stock pup.

OK, the flat side on the left is for the inverting(-) and non-inverting(+) inputs; + on top, - on bottom. The the pointy end to the right is the output. The line extending from the top is the positive DC voltage The line extending from the bottom is the negative DC voltage, a lot of the time this may just be common, but not always. To figure out what pins on the op-amp it's at you'll need to refer to some sort of datasheet, which can be found all over the net if you just type the name of it in a search engine. Some op-amps can be changed for others without problems which have slightly different specs to them. For example, a 4558 op-amp and a 741 op-amp are interchangable. Believe it or not guys, the 741 is superior according to the spec sheet! But what is truely desired by guitarists is the EQ curve of the clipping that the chip is responsible for (along with the diodes, of course). Basically, it will output mainly midrange and treble and cut off in a treble frequency. I sure hope I'm not flamed for saying what I just said. Right now, I'm trying to experiment right now with using an op-amp as a summing amplifier to allow having the sound of a series wired humbucker, while having less noise and more clarity.

Please tell me who ever did that has\will clean up their routing job with a drum sander or something! No offense, but ugh!

It literally makes the thing feedback, forcing the string to vibrate, looking at what the circuit does, I haven't actually tried this one. I'd assume it works best for a single note. I have an ebow and that runs off an LM386, too.

Yeah that's right.

Very nice! By the way, Hyunsu, in English, for this purpose it should be either "My new project is finished." or "My new project has ended." I'm not insulting you, especially when I'm sure you speak Korean way better than me!

You could actually if you're handy enough, desolder the pots from the circuit boards and stuff and solder on wires to give it the freedom to be placed in the arrangement you want. You just have to make sure you have enough room and that it's not wobbling around and stuff on you. I personally have the knowledge in electronics that I could design and make my own preamp from scratch from less than $80 (I am right now for a guitar I'm building), so yeah. BTW, nice porn! LMAO If only you could have made a different folder...

Hey guys, only the low end stuff (under $150) they sell under the Kramer name is plywood! That other stuff is on par with Epiphone, and basically is Epiphone. Actually yeah, it's does say for the hollow body that it's 5 ply laminate, but that's needed for the strength of a hollow body, and to be able to form the curve without cracking the wood. The one thing I don't like though, is they, and most companies take a perfectly good Maple top and put a thin Figured Maple veneer on it to make it look expensive and so they can jack the price up way higher even though it only cost them maybe $5 to do so. It totally kills the tone, I know from experience.

well, how about having the coil(s) and magnet (s) lay pointing the bridge and neck and have a steel bar or laminations direct the magnetic field up to the string? You could control the magnetic pull that way and many other things... Oh crap, I let the cat out of the bag! Oh well, I'm sure I'm not the first one to think of this. Oh yeah, BTW, I've tried what you're suggesting, it really does sound aweful, I think it's because it's picking up harmonics from so many places it's causing the waveform to distort itself really bad! Trust me, if you can keep the field of sensing to a minimum, you will have a cleaner signal. Also, think about the magnetic field when you adjust it. Based on it's magnetic properties, a pup will sense more or less of the string depending on where it's adjusted.

The coil (the bobbin came from a dead humbucker) actually ended out having about 600 winds and a resistance of only 8 Ohms! I think I could improve upon this design with laminated steel rails... Anyways, yes, there was a Les Paul model that featured low Z pups on it that I recall as being the Les Paul Recording, might have also been called the professional at one point. Anyways, I believe they were converted to hi-Z by means of a transformer normally meant to lower the impedance of a tube amps out.

I mounted an AlNiCo V humbucker in the neck of a dreadnaught type guitar's soudhole by taking one of those rubber feedback reducers and cutting it with a razorknife and screwing it on. It wasn't very close and I had to lower the polepieces on the B and E strings signifigantly. It was great for Jazz, but not great if you want to simulate the acoustic guitar's natural character.

That, too, I'm sure. My design involves fairly low-ouput, but still high impedance coils, with voltage being boosted by one type of preamp, then converted to low-z by another type. Impedance is not really a means of saying what power is. After it's converted to low-Z, it's has a slight decrease in voltage, but a big boost in current, it will sound signifigantly louder. A little something called Ohm's Law will tell you why this works. As resistance decreases and voltage remains constant, current increases. The lower impedance along the length of the cable (and in the electronics cavity) allows for spare capatitance to not as much treble loss from the cable (it really can't be noticed at all with it unless it's really long!). Anyways, I have experiment with low-Z pickups running into a preamp converting them to High-Z, and yes, they are low noise, and very clean sounding, but not too trebly or thin, they're great for Jazz!!!!! This was at a time when I didn't have access to enameled wire smaller than 28 AWG. I think I'll go back to the drawing board with that one, now that I think about it! I got so much more knowledge, now!

Put me next in line for an ossciliscope! Dude, nice score!

When you're running your pickup(s) through the preamp, you're converting it to low impedance. I do believe that EMG's are actually High-z pups going into a preamp that outputs it as low-z. This really helps the pups be able to have low noise because the preamp is so close to the pup (it's sealed in cover with it). Personally, I'm working on devoloping a unique active pup involving 2 coils for each string, utilising Neodymium magnets and a unique magnetic design to allow differentiation amongst strings. Each string will have their own preamp intially, then be mixed down. All this, before leaving the pickup enclosure! Maybe after I turn out a couple of prototypes, maybe someone would be willing to be the guinea pig?

uhmmm.... whats a tripod? I am, Look ma! No hands! No, actually, a tri-pod is a 3 legged device used to hold a camera still, sometimes at the height and angle of your choice.

Hyunsu, you could always do a PRS or Schecter type contour for upper fret access. It'd be a little bit extreme compared to those and you might not like showing the back wood. I did a Schecter-style on my 22 fret guitar body I'm making and I noticed these contours also allow for much better (like a basebal bat!) resonance while having the same strentgh because of the arches. Or, just build it as it anyways as a guitar intended for rythym guitarists. It'd be a shame to see this piece of wood go to waste! Here's a couple of examples: http://www.schecterguitars.com/Dproducts/2...men6_eb_pop.jpg http://www.prsguitars.com/showcase/current...s/lg_ce24mt.jpg Here's another idea, is the body long enough that it could it be used as a bass body? You'd probably be limited to 4 strings unless you routed for bigger pups though. Hmm, maybe rail based humbuckers like EMG's or Bill Lawrence's?