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Barber Electronics - Tone Pump EQ
Posted: 16 Oct 2007, 13:21
by modman
gut shot:

Posted: 16 Oct 2007, 15:52
by JHS
... SoS with some mods...
JHS
Posted: 16 Oct 2007, 19:08
by alteredsounds
SoS? being thick and cant think what you're refferring to?
Posted: 16 Oct 2007, 19:27
by soulsonic
alteredsounds wrote:SoS? being thick and cant think what you're refferring to?
SoS = Son of Screamer - a much copied Jack Orman project that's based on the Tubescreamer.
Posted: 16 Oct 2007, 20:13
by alteredsounds
soulsonic wrote:alteredsounds wrote:SoS? being thick and cant think what you're refferring to?
SoS = Son of Screamer - a much copied Jack Orman project that's based on the Tubescreamer.
lol was driving me nuts, just couldnt think

Re: Barber Electronics - Tone Pump EQ
Posted: 27 Apr 2009, 13:51
by Cloud10
Reviving an old thread. Can anyone post some more detailed info?
Barber - Tone Pump
Posted: 02 Feb 2011, 05:05
by chi_boy
I hope this isn't common knowledge already.
I stumbled onto this pdf file. I searched here and Google and didn't find any reference to this. Thought I would take a chance and point it out.
Sorry if this is old news.
Re: Barber - Tone Pump
Posted: 02 Feb 2011, 05:16
by Greg
chi_boy wrote:I hope this isn't common knowledge already.
I stumbled onto this pdf file. I searched here and Google and didn't find any reference to this. Thought I would take a chance and point it out.
Sorry if this is old news.
No.. I haven't seen it before and I don't think it's been seen here before.
Thank You !
Update: looks like Dave Barber posted this at DIYstompboxes.
Re: Barber Electronics - Tone Pump EQ
Posted: 02 Feb 2011, 07:51
by Greg
OK.. in respect of David Barber's request that his drawing not be posted without permission (which was refused to FSB), I've redrawn it and will delete the original.
You'll have to test the tone pot wiring to get the rotation you want, as it's not detailed on the original.
Re: Barber Electronics - Tone Pump EQ
Posted: 02 Feb 2011, 12:47
by modman
https://www.diystompboxes.com/smfforum/ ... ic=80685.0
Have a look at this schematic. Nobody cared for it even at diystompboxes.com -- already more than a year old....
Re: Barber Electronics - Tone Pump EQ
Posted: 02 Feb 2011, 13:56
by culturejam
Wow. Those guys aren't exactly falling all over themselves to thank the man for giving up the goods.
Re: Barber Electronics - Tone Pump EQ
Posted: 02 Feb 2011, 14:01
by Greg
culturejam wrote:
Wow. Those guys aren't exactly falling all over themselves to thank the man for giving up the goods.
It's not really anything groundbreaking I guess.
But probably a very useful version of that style of circuit.. a refined diode clipper with good EQ options.
Re: Barber Electronics - Tone Pump EQ
Posted: 02 Feb 2011, 14:07
by madbean
I missed that post myself.
Thanks, Greg! This looks like a fun and highly moddable little fella.

Re: Barber Electronics - Tone Pump EQ
Posted: 02 Feb 2011, 14:13
by Greg
BTW - the first drawing I posted had the 470K resistor just before the second opamp stage going to ground.
It should be going to VR.. the drawing's fixed now, but if you downloaded it early better re-download.