¿Some Electric Bass Schematics?

[jorginho]

Hi. I'm a electronic tech and bass player.
I've build a lot of guitars effects for sale and some of them work pretty good on bass, but ¿are the some sites for bass effects only?

[Fret Wire]

http://www.generalguitargadgets.com/v2/index.php?option=displaypage&Itemid=171&op=page&SubMenu=

http://www.runoffgroove.com/flipster.html

[jorginho]

Thanxs!!
I guess i'll try the portaflex.
Just in the case I've made a bassball clone tha works pretty good in a bass.