Print Page - Mark Hammer's STUPIDLY WONDERFUL TONE CONTROL

Title: Mark Hammer's STUPIDLY WONDERFUL TONE CONTROL
Post by: Vivek on October 26, 2020, 05:02:04 AM

I ran into MH's STUPIDLY WONDERFUL TONE CONTROL (SWTC) while analysing Wampler's Ecstasy pedal

(https://hammer.ampage.org/files/SWTC.gif)

Here is what LTSPICE said re the values chosen in the Ecstasy:
(https://i.postimg.cc/zqzdVrVW/Warped-Delight-Tone-Control.jpg) (https://i.postimg.cc/zqzdVrVW/Warped-Delight-Tone-Control.jpg)

Further reading from the revered AMZ :
http://www.muzique.com/lab/swtc.htm (http://www.muzique.com/lab/swtc.htm)

Title: Re: Marks Hammer's SIMPLY WONDERFUL TONE CONTROL
Post by: 11-90-an on October 26, 2020, 05:07:02 AM

Don't forget the 3rd one... :icon_lol:

http://www.muzique.com/lab/swtc3.htm

Title: Re: Marks Hammer's SIMPLY WONDERFUL TONE CONTROL
Post by: Mark Hammer on October 26, 2020, 08:40:47 AM

It's certainly not my idea. All I did was bring it to people's attention here, and Jack took the handoff and ran it for the touchdown.

Brian's basic circuit does require a small-value resistor in series between the cap and the tone pot, in order for the control to function coherently and predictably.

Note that, because it is single-pole, the effect is subtler than one gets with a TS-style boost-cut tone control.

Title: Re: Marks Hammer's STUPIDLY WONDERFUL TONE CONTROL
Post by: Vivek on October 26, 2020, 10:18:46 AM

Is it possible to have a STUPIDLY WONDERFUL BASS CONTROL ?

Title: Re: Marks Hammer's STUPIDLY WONDERFUL TONE CONTROL
Post by: anotherjim on October 26, 2020, 11:10:29 AM

Did you notice what the truncated thread title reads in this forums recent posts links? See, there is reason for placing an apostrophe was in the right place after all!
:icon_biggrin:

Title: Re: Marks Hammer's STUPIDLY WONDERFUL TONE CONTROL
Post by: Mark Hammer on October 26, 2020, 11:28:30 AM

Quote from: Vivek on October 26, 2020, 10:18:46 AM
Is it possible to have a STUPIDLY WONDERFUL BASS CONTROL ?

That's where you want to have a look here: http://www.muzique.com/lab/swtc.htm

Title: Re: Mark Hammer's STUPIDLY WONDERFUL TONE CONTROL
Post by: Steben on October 26, 2020, 02:16:51 PM

here you go. Just remember while clockwise means "less" (bass ic) just as in a treble control this comes with a linear relation between value of control and corner frequency

f~R (instead of f~1/R)

(https://live.staticflickr.com/65535/50533220853_027edb624c_z.jpg)

Title: Re: Mark Hammer's STUPIDLY WONDERFUL TONE CONTROL
Post by: amz-fx on October 26, 2020, 02:22:55 PM

Quote from: Vivek on October 26, 2020, 05:02:04 AM
I ran into MH's STUPIDLY WONDERFUL TONE CONTROL (SWTC) while analysing Wampler's Ecstasy pedal

A really nice circuit and I use it frequently in pedals. Thanks, Mark!

Best regards, Jack

Title: Re: Mark Hammer's STUPIDLY WONDERFUL TONE CONTROL
Post by: Fancy Lime on October 26, 2020, 03:10:33 PM

Yupp, best thing since sliced bread. My favorite tone control by far.

Andy

Title: Re: Mark Hammer's STUPIDLY WONDERFUL TONE CONTROL
Post by: iainpunk on October 26, 2020, 07:30:15 PM

i haven't put any tone controls on anything i ever build except for 1, an active mid boost. if i ever put a tone control on any of my pedals in the future... maybe... i'll use the 3rd one of this page

Quotehttp://www.muzique.com/lab/swtc.htm

cheers, Iain

DIYstompboxes.com

DIY Stompboxes => Building your own stompbox => Topic started by: Vivek on October 26, 2020, 05:02:04 AM