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Circuitbenders Forum => Circuitbending discussion => Effects Units => Topic started by: nochtanseenspecht on June 01, 2010, 08:29:21 PM

Title: Too Many Knobs
Post by: nochtanseenspecht on June 01, 2010, 08:29:21 PM
on the dutch synthforum there has been a topic recently about a DIY distortion with 6 to 8 knobs to shape the sound. because it is a cheap and easy unit to build, and it sound better (also more dirty) than most distortions imo, it would be immoral not to share this info with you freaks  ;)

so here's the schematics
http://gaussmarkov.net/layouts/tmk/tmk-schem.png (http://gaussmarkov.net/layouts/tmk/tmk-schem.png)
and the partslist (unmodded)
http://gaussmarkov.net/layouts/tmk/tmk-parts.txt (http://gaussmarkov.net/layouts/tmk/tmk-parts.txt)
it's also moddable with germanium diodes, bias knob, voltage drop etc

since i could only attach a 100 kb, i wont let you hear how it sounds,
but anyone interested in what it does to a tr-606 beat and a jp-6 arp (dry recorded) should check post no 128
in the topic on the dutch synthforum :
http://www.synthforum.nl/forums/showthread.php?t=126776&page=5 (http://www.synthforum.nl/forums/showthread.php?t=126776&page=5)

me i'm so happy with it, i will make a second one  :D
Title: Re: Too Many Knobs
Post by: nochtanseenspecht on June 01, 2010, 08:33:33 PM
 :)
Title: Re: Too Many Knobs
Post by: Circuitbenders on June 01, 2010, 11:42:44 PM
I'd imagine this has been posted before but heres a load of other cool effects circuits by Tim Escobedo, including the TMK

http://www.jiggawoo.eclipse.co.uk/guitarhq/Circuitsnippets/snippets.html (http://www.jiggawoo.eclipse.co.uk/guitarhq/Circuitsnippets/snippets.html)
Title: Re: Too Many Knobs
Post by: nochtanseenspecht on June 02, 2010, 10:53:23 AM
haven't seen those, cheers Paul !
hmm where to start.. perhaps ms20 filter, or the "gargler", or the idiot wah  :)
nice thing with these circuits is, they all run on 9V. and they're so small they fit almost anywhere
Title: Re: Too Many Knobs
Post by: mikebike on January 07, 2011, 03:40:54 PM
does the TMK use 2 ics , or one ?

the two triangles both say u1

but theres a note that says "u1, u2"

Title: Re: Too Many Knobs
Post by: Circuitbenders on January 07, 2011, 04:53:04 PM
the TL062 is a dual opamp. There are two identical opamps on the one chip with U1 referring to one, and U2 referring to the other. You can find the datasheet here http://focus.ti.com/lit/ds/symlink/tl062.pdf (http://focus.ti.com/lit/ds/symlink/tl062.pdf) which shows you the pin out.

The opamp on the right of the schematic should probably be labelled U2 for clarity.
Title: Re: Too Many Knobs
Post by: Gordonjcp on January 07, 2011, 08:21:58 PM
It doesn't really matter anyway, because you can get single, dual and quad versions of most opamps.  If you can't find a TL062, a pair of TL061s will do.  You won't find those either, so just get a TL072 instead, or TL082.  The key is that it's a FET opamp so it has a high input impedance.  The actual type isn't important, and the number of amps in a single package even less so ;-)
Title: Re: Too Many Knobs
Post by: Matt the Modulator on March 14, 2011, 06:53:52 PM
I'd imagine this has been posted before but heres a load of other cool effects circuits by Tim Escobedo, including the TMK

http://www.jiggawoo.eclipse.co.uk/guitarhq/Circuitsnippets/snippets.html (http://www.jiggawoo.eclipse.co.uk/guitarhq/Circuitsnippets/snippets.html)

i have made a few of those circuits and all have worked pretty well (unusual for schematics on the web :)
the q*d filterr is sublime well in a low fi way
Title: Re: Too Many Knobs
Post by: PinDrop on December 27, 2015, 12:56:55 PM
I'm going to give this a try now I've got a few days off work. Can't wait to hear what it sounds like.

haven't seen these Best CBD Oils yet (http://www.namnmeteors.org/) so cheers Paul !
hmm where to start.. perhaps ms20 filter, or the "gargler", or the idiot wah  :)
nice thing with these circuits is, they all run on 9V. and they're so small they fit almost anywhere