Davebassics

Interesting idea. Forgive my ignorance but what are the benefits of having no load tone pot? As far as I am aware a tone pot set to "full" passes everything up and over 20kHz. Removing the load wouldn't make a difference to the output signal as the impedances preamp inputs are usually set between 1 and 10M. Am I missing something?

Just bought a P Bass Neck form Paul. Great communication and price. Nothing less than perfect. Cheers Paul.

Was so close to buying paint for this but chickened out last minute. Vintage white has a hairline lead!

Vintage White has taken an over night lead! Only 31734 days left to vote. Fiesta Red always reminds me of the BBC News page. I'm sure someone will tell me they are completely different colours!

Got to love the P/J on a J Body. Looking forward to seeing the final results.

I have the Squier CV in "Fiesta Red". Regardless of what colour it actually is, it's beautiful. I think deep down I secretly know what I'm going to go for, but lets see how the vote goes over coming days/weeks.

Thank you! Yeah, obviously I'm not voting but shame to see no votes for the fiesta red yet!

Not that it affects me in anyway. I've narrowed the refinish colour down to 1 of 3. 1. Olympic White [attachment=99801:0190662705_frt_wlg_001.jpg] 2. Fiesta Red [attachment=99799:red1.jpeg] 3. Vintage White [attachment=99800:offwhite.jpeg] [url="http://allthatjazzbass.blogspot.com/"]VOTE HERE[/url] and help me decide!

Just bought a Sadowsky Preamp from Andy. Was at my door less that 24 hours after agreeing a deal. Wouldn't hesitate to do business with him again. Pleasure.

Yeah pretty much. It's all built modular so anything can be added or removed at anytime. Might look at sticking some overdrive in once I've got the filtering and noise perfected.

It's currently a simple design, it's a box on the floor sort of thing like a sansamp. It's a final year project for my BSc in Audio Systems. The prototype is almost done but have already planned major improvements. I am hopefully going to document my work on it a bit more once uni is finished.

Sound like a pull down resistor issue. A good article: [url="http://www.muzique.com/news/pulldown-resistors/"]http://www.muzique.com/news/pulldown-resistors/[/url]

I've never used Active pickups but I would imagine it would depend on where in the chain the power is decoupled from the signal. If the circuit is decoupled at the tone pot then you should be able to get away with using a single battery. However I would imagine the signal coming into your active preamp will be biased back at 0V and will need a second supply for it to operate. I'm sure someone will be able to give a much more certain answer but I think thats how it would work.

I can in detail explain a active filtering system I adopted for my preamp designs. In short, summing a inverted band passed signal with the input so the 'mid cut' frequencies cancel each other out. You also can adopt pots and extras to make it parametric. I have no answers for passive designs unfortunately.

At peak, my P bass measured roughly 0.6Vpk (gave it a right twonk). Line level is 1.737Vpk. So after a few calculations, roughly 9dB of gain is needed to bring instrument level up to line level. Obviously this will vary significantly every time you repeat it but it offers a fundamental starting point. For single supply rails you have to DC bias the signal to allow full swing through an op amp. Biasing a 9v battery at 4.5v theoretically gives you 3.9Vpk of gain to play with. Practically it will be less, more like 3Vpk because op amps wont swing fully to their supply rails. Don't take my word on this but I think your average 9v battery can kick out around 12dB before distorting. Thus deducting, a 9v battery will suffice. 18v means you can push a much greater signal out of the bass for driving the next stage if required.

Also interested in information about this ...

[quote name='Protium' timestamp='1328360131' post='1525934'] Measure twice, cut once [/quote] If only there was a 'Like' button on basschat! [quote name='essexbasscat' timestamp='1328363394' post='1525999'] Look forward to hearing more Dave. If you're considering throwing the old neck anyway, is there any harm in having a go at repairing it ? [/quote] I had considered that and still might look more into it. I am going to be fitting a P bass neck to this project though! Was actually thinking about hanging it on a wall as art!

Hi there! A long time reader of many blogs and forums regarding bass repairs and builds I've finally decided to stop reading and start doing. I've just started a blog about a project I am undergoing with my much loved jazz bass. I thought I would share this link with you guys because I imagine it would interest some of you! [url="http://allthatjazzbass.blogspot.com"]http://allthatjazzbass.blogspot.com[/url] I'm competent with electronic installations, builds and designs but wood work and other hardware issues will offer a great learning curve for me. If anyone has any advice please feel free to comment! Cheers, Dave