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DIY Stompboxes => Building your own stompbox => Topic started by: annihilator on October 14, 2009, 03:42:03 PM

Title: Tube Screamer with Guvnor 3 band eq
Post by: annihilator on October 14, 2009, 03:42:03 PM
Hi. Can I build TS with guvnor 3 band eq?
Title: Re: Tube Screamer with Guvnor 3 band eq
Post by: Slade on October 14, 2009, 03:48:39 PM
Off course, do you know something about soldering and stuff?
Title: Re: Tube Screamer with Guvnor 3 band eq
Post by: annihilator on October 14, 2009, 06:14:40 PM
I have no idea.  What should i do with TS tone knob and where should i put Guvnor eq? Could some one help me out ???
Title: Re: Tube Screamer with Guvnor 3 band eq
Post by: foxx on October 20, 2009, 12:22:04 PM
Have a look at this thread
http://www.diystompboxes.com/smfforum/index.php?topic=77202.0
It is not the Guvnor EQ, but also a 3-knob tonestack, which can be easily substituted with any other  ;)

greetz
Title: Re: Tube Screamer with Guvnor 3 band eq
Post by: mr.adambeck on October 20, 2009, 06:28:48 PM
Here' a Guv'Nor tonestack Vero that I made.  I hope it helps, I've never made a TubeScreamer, but it may be possible to just make two boards, one with this, and one with a toneless tubescreamer.  It's pretty much verified, except that the person who made it said that one of the knobs worked backwards (Looking at it now, treble 3 shouldn't go to Ground, as listed under the layout.  I suspect that's the problem.)  I'm hoping to do this myself sometime soon, but a lack of funds and a few non-stompbox projects are getting in my way!

(http://www.aronnelson.com/gallery/main.php?g2_view=core.DownloadItem&g2_itemId=40902&g2_serialNumber=2)

Here's the schematic:

(http://www.beavisaudio.com/techpages/BlocksFragments/Marshall_Guvnor_Tone_Stack.gif)
Title: Re: Tube Screamer with Guvnor 3 band eq
Post by: mr.adambeck on October 21, 2009, 01:08:37 AM
(http://www.aronnelson.com/gallery/main.php?g2_view=core.DownloadItem&g2_itemId=40902&g2_serialNumber=3) 

Here's a corrected version.
Title: Re: Tube Screamer with Guvnor 3 band eq
Post by: annihilator on October 27, 2009, 07:52:34 AM
Hi Guys, thanks for all the answers!  :icon_wink:
Title: Re: Tube Screamer with Guvnor 3 band eq
Post by: annihilator on October 27, 2009, 09:04:32 AM
Hi, if i do this like in the picture... Will it work ?

(http://img23.imageshack.us/img23/6056/tsguvnoreq.jpg)
Title: Re: Tube Screamer with Guvnor 3 band eq
Post by: Ben N on October 27, 2009, 10:49:36 AM
That will work, but you will probably lose a lot of volume that way. Use the opamp that you just saved by deleting the TS tone section to make a recovery stage--a non-inverting opamp with enouigh gain to recover the losses in the tone stack. You can also lose the output buffer, since your opamp recovery stage will have a nice low output impedance.
Title: Re: Tube Screamer with Guvnor 3 band eq
Post by: hoopshot on October 27, 2009, 11:06:59 AM
I think you want to do something more like this:

(http://i36.tinypic.com/2126177.jpg)
Title: Re: Tube Screamer with Guvnor 3 band eq
Post by: Ben N on October 27, 2009, 11:49:55 AM
That is probably not ideal. There was another recent thread  (http://www.diystompboxes.com/smfforum/index.php?topic=79757.0) around here about opamp recovery stages, with some tailor made solutions.