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I literally just finished drawing out the PCB for the modern wal preamp. Im going to try to make a few of them and see how they work. I'm going to make a direct clone just to try doing it. I have to order some pretty specialized parts to do it.. $600 in transformers, $400 in pots, etc. I cant...

You might be a little confused on your terms. When people talk about resistance, they are usually talking about resistance to DC current. The pots that you talking about there have a max DC resistance of 250 or 500 ohms. DC resistance is really straight forward because it doesnt change based on...

As long as the new pots' value is the same, it should sound IDENTICAL. Pots are neutral if the value is the same.

His description isnt nessesarily the whole story on caps. Most people dont worry about caps having a resistance - though im sure a few do. In the bass, a capacitor is used at the tone control to remove high frequencies. I believe it is much more common in electric guitar that with bass - many...

Well I just got the magnets in yesterday, and man are they perfect! The pole screws are currently in production but are 6-7 weeks out. They are a pretty custom screw and take some time to make. Dave and I had the metal in one of the pole screws analysed to determine the specific alloy and got...

Hey i'm doing some research on the lane poor soapbar pickups (as a pickup maker). I'm wondering if anyone might have one of the Narrow Apeture soapbar pickups either M3.5N, M4.0N or M4.5N that you might be willing to trade for an M4.0W plus $100. if you're interested let me know, svirf

It was tough for me to hack that pickup apart.. considering what I paid for the darn thing. Though it was worth it in the name of science. SCIENCE!

There is a very good pot used for guitar which I can recommend.. RS Guitar works has a 280k pot they call a super pot. great pots. You really shouldn't notice any difference between 250 and 280. They are available in short and long shaft if I recall. I use the 500k's on all my guitars and they...

RWRP is broken into two parts... RW (Reverse Wound), and RP (Reverse Polarity). Generally the coils are not actually wound any differently, but some makers do it. It makes *no* difference. What is different is how the two coils are connected together.. For the sake of arguement lets invent a...

Hey all, Im not much of a bass player, but I do build a mean guitar. Im working on a line of basses and intend to make my own proprietary bridge. I've got the rough design down, but i've come to a question that im unsure of and would love the advise of TB memebers... What can people tell...

In theory, a standard carbon wiper potentiometer shouldnt sound any different. It's a basic resistor. Most likely what people perceive as different, or better sounding, is a change in the VALUE of a pot. So for example if you removed a pot that read 450kohms, and replaced it with a pot that...

I'm the person working David. We're actually a very good match up for this project because we come from different background that don't really conflict with each other. He's coming at everything from the standpoint of an Aftermarket pickup replacemer, and I as an OEM manufacturer. I have no...

What do you think a good frequency range for each adjustment should be? i.e. bass.. from xHz to yHz, and so on?

Can you explain?

Thats exactly what I want to build!

As some may have read from another post, im designing my own preamp, just for the hell of it. I see that several several pre-amps out there use a standard Bass & Treble control, but that several have a semi parametric mid control.. Is there a reason that people use the semi parametric...

So if you did a semi-parametric Would would be on the Top and would would be on the bottom? Also, if the Concentrics that I had were push pull, you could add an extra function.. What would you use the push pull for?

I have about 10 different Evidence Audio Cables. They are Magic in my opinion. I think the owner sold part of his soul to get the secrets to make them.. I recently set up to record some sound samples of Various Guitar Pickups I made.. I used the Evidence Audio Lyric Cables exclusively.. From the...

I'm just throwing around some ideas for an electronics project. Im trying to design a Bass Preamp just for the hell of it. I see alot of bases have a basic Low, Mid, High set up.. I could see a couple of advantages to a parametric setup, but it would be a lot of knobs.. I think I can get my...

So Im relatively new to the world of bass construction and im trying to get a grasp on how to determine where to put the pickups on a bass.. How do people determine the locations? Is there a standard rule? or is it more like "fender put it here, so im going to too!"? I've heard thigns...

TTT

Hey I just sent you a PM - I think I live really close to you! And thanks for the link, i've joined and im just waiting for approval.

TTT

Does anyone here have one of the later Model Wal basses? If so would I'd love to hear from you.. I would really like to get some high res pictures of the preamp (top and bottom). I'd be willing to pay a couple hundred bucks for the right pictures. All you'd have to do is remove the pre-amp for 5...

I'm a machinist and im considering making a wal bass bridge clone - really just for the heck of it - not for resale. It would be a 4 string version of this bridge.. http://www.featfirst.com/Andy/machiii.jpg Does anyone have a four string version and would you be as kind as to post some...

All you need is wax paper underneth. A good thickness for an acoustic soundboard is about 4.3mm final.

Take a picture of your wiring cavity and post it. I'll help trouble shoot it.

Thats correct. Most likely the pickups are wound RWRP which cancels out the hum when put together.. The two single coils become a humbucker because the coils are out of phase with each other. When you favor one pickup, the individual pickup comes back into phase and you pickup electromagnetic...

Can some one tell me what no-load means?

what im talking about is a series humbucker.. If you have a 5k north coil, and a 5k south coil you get a 10k pickup. In Parallel the 5k and 5k half to 2.5k. You can do rwrp in parallel as well. Series / Parallel has nothing to do with RWRP. Series Parallel refers to how the two coils are...

What you are doing with RWRP is putting the coils out of phase with each other. This inverts the signal and cancels the hum associated with electro magnetic interference. This works regardless of the core. So now that you have the Hum taken care of you want to have the signal In-Phase, and that...

Does anyone here have a Lane Poor Music Man humbucker .. This is the one used on the modulus flea bass, or the aftermark one.. The part numbers were MM4HB and MM4HBSC for the 4 conductor one. Im trying to reproduce this pickup and need to get my hands on one to see. I posted an add in the...

It's not hard after you learn the basics. There are a lot of commercially available parts around. Check out the pickup makers forum for TONS of help. [Invalid or Expired Link Removed] guitarjonesusa.com has lots of bass parts.

I'm a new user here, and a guitar maker. I'm looking at designing a line of bassess and frankly im not a basist, so im here doing some research looking to find out what style of pickups do you all like? Whats out there that is considered the holy grail? What do you like in the neck? what do you...