Wanted Schematic for active circuits

[iggipopovski]

Few days ago I got really cheap SX 62'. I want to upgrade with old Schallers that I already have, just missing active eq for more tonal control. Really don't have money for expensive Bartolini pres or similar, so I will be very thankful if any of you can share with me schematic of any active bass eq.

Thanks

[luknfur]

Originally Posted by iggipopovski

Few days ago I got really cheap SX 62'. I want to upgrade with old Schallers that I already have, just missing active eq for more tonal control. Really don't have money for expensive Bartolini pres or similar, so I will be very thankful if any of you can share with me schematic of any active bass eq.

Thanks

Don't really understand this but any of the schematics for Bart, Aguilar, EMG, whoever will be along the lines of the same thing. Go to those sites and that's basically what you get from any bass pre - what good it will do you I'm not sure but I don't understand what you're trying accomplish either.

[A9X]

Originally Posted by iggipopovski

Few days ago I got really cheap SX 62'. I want to upgrade with old Schallers that I already have, just missing active eq for more tonal control. Really don't have money for expensive Bartolini pres or similar, so I will be very thankful if any of you can share with me schematic of any active bass eq.

Thanks

Opamp stuff is usually jsut the V/V passive controls, a buffer, and a Baxandall type feedback tone control setup, often implemented with something truly hideous like a TL062.

This is about the best I've seen posted on the web that doesn't need external power.
http://www.albertkreuzer.com/preamp_onboard.htm
There's no EQ on this, but if you need more than your head/rack pre can provide, onboard isn't the best way to go.

[A9X]

If you really must...
http://redcircuits.com/GuitarControl.GIF

[iggipopovski]

Originally Posted by A9X

If you really must...
http://redcircuits.com/GuitarControl.GIF

This one will be perfect with some minor mods, and its very simple to DIY.
Thanks