2x 3-band eq pedal, any ideas?

Union Of V · 13th March 2010, 10:53 AM

For a while I've been thinking about how to eq my guitar. I don't have much love for graphic eq's, and realistically I'd be needing at least two eq's so buying pedals might turn out expensive. I can't find any reasonable priced parametric eq's that have more than a single band, so I thought I might as well try to make my own. I'm not particularly gifted with electronics

but I mocked up an idea roughly based on the chematic here.

I was wondering if anyone could give me some guidance on whether or not this is a viable design. I have yet to decide whether or not to make the resistence variable (via a pot in place of R12) but otherwise I can't find any problems - but I could easily be mistaken...

Thanks in advance.

Union Of V · 13th March 2010, 03:04 PM

Ooops forgot to upload the schematic: parametric_eq_0.1.jpg And that's variable Q, not variable "resistence". Think before you type...

Nigel Goodwin · 13th March 2010, 08:31 PM

I would suggest building it and trying it - I don't really know if variable Q would be a worthwhile addition or not?.

SLW · 15th March 2010, 07:40 PM

Check out R.G. Keen's site. New Page 1 There is a link for "FX Projects". On that page there is a section on "tone control/EQ". There is a good article with schematics. The web site is a great one.

SLW

13th March 2010, 10:53 AM	#1
Union Of V diyAudio Member Join Date: Mar 2010	2x 3-band eq pedal, any ideas? For a while I've been thinking about how to eq my guitar. I don't have much love for graphic eq's, and realistically I'd be needing at least two eq's so buying pedals might turn out expensive. I can't find any reasonable priced parametric eq's that have more than a single band, so I thought I might as well try to make my own. I'm not particularly gifted with electronics but I mocked up an idea roughly based on the chematic here. I was wondering if anyone could give me some guidance on whether or not this is a viable design. I have yet to decide whether or not to make the resistence variable (via a pot in place of R12) but otherwise I can't find any problems - but I could easily be mistaken... Thanks in advance.

13th March 2010, 08:31 PM	#3
Nigel Goodwin diyAudio Member Join Date: Jul 2005 Location: North Derbyshire	I would suggest building it and trying it - I don't really know if variable Q would be a worthwhile addition or not?. __________________ Nigel Goodwin

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
3 band eq with ballance and gain	jamie1107	Solid State	3	28th July 2011 02:52 AM
Computer Programmable Custom Band EQ	matt09	Digital Line Level	1	13th March 2009 06:35 PM
PCB layout proposal for Slone's 5-band eq	Bootstrapper	Solid State	2	27th December 2008 12:19 AM
Please help - DIY 7 band 1/3 oct parametic EQ	tipicreeper	Analogue Source	9	9th June 2008 06:14 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

13th March 2010, 03:04 PM	#2
Union Of V diyAudio Member Join Date: Mar 2010	Ooops forgot to upload the schematic: parametric_eq_0.1.jpg And that's variable Q, not variable "resistence". Think before you type...

15th March 2010, 07:40 PM	#4
SLW diyAudio Member Join Date: Mar 2010 Location: Upstate NY	Check out R.G. Keen's site. New Page 1 There is a link for "FX Projects". On that page there is a section on "tone control/EQ". There is a good article with schematics. The web site is a great one. SLW

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)