Building a Tim Escobedo's TMK

[webero]

Hi
Im gonna build a TMK (visit http://www.geocities.com/tpe123/folkurban/fuzz/snippets.html)

Im not sure about the diods marked with "Si". What diods are they?

Has anybody a PCB layout of the TMK?
Has anybody a web about this project?

THANK U

Webero

[smoguzbenjamin]

Si diodes are diodes made of Silicum, like the 1n4148 or 1n914 You also have Ge diodes which are made of Germanium

[Marcos - Munky]

I don't know anything about a online layout of this effect, but I can try to draw one. Send me a e-mail.

[Dan N]

That one might be a fun exercise in how many parts you can leave off a pcb and just have them soldered pot to pot...

[Marcos - Munky]

Sorry, I don't know what I was thinking when I posted a reply here. I ALREADY DID a layout for it some weeks ago. I sent a P.M. to Tim about to post the layout for the TMK and some other effects, but he didn't sent me a reply. I think he didn't received my P.M.. Send me a e-mail and I will send the layout to you.

[Tim Escobedo]

Hey sorry for not replying. I never realized the messages were there. I forgot of that capability.

All the info is on the schem. While it's not a sophisticated circuit, it has lots of "flying" connections. Easy to screw things up.

[Marcos - Munky]

http://www.geocities.com/munkydiy/tmk1.3.gif
I uploaded it, but didn't added it to the schematics list yet, because I will try to rebuild my site. It's untested, but I think it's right. If you use it, let me know if it works.

[webero]

Woah! its incredible
This forum is burning!
Thank you for all of the replies!

Ive got some questions about TMK (sorry Tim, but I think TMK is not so easy as you say)
What kind of diods has been used? sylicon-made I  know, but what value? or what capacity or something like that?

OpAmp is one or two TL062 ?

Ive got different pots (not 250k but 220k, not 500k but 470k, not 50 but 47). It'll affect the results?

By the way, pots are log or lineal?

I need a layout or a scheme where different components are shown

Thank u again !



One thing more: http://www.geocities.com/munkydiy/tmk1.3.gif is wrong !!!!
it doesnt work !

Thanks

[Peter Snowberg]

One thing more: http://www.geocities.com/munkydiy/tmk1.3.gif is wrong !!!!
it doesnt work !

Thanks

When you see a picture posted from a geocities address like this, you need to copy the address and paste it into a new browser window or else it will not work. They do that to stop you from viewing things on their servers without watching their advertising too.

Take care,
-Peter

[Tim Escobedo]

Diodes marked "Si" are silicon. You can use any thpe of common silicon, such as 1N4148, 1N914, 1N4001, etc. Not Germanium or Schottky diodes such as 1N34, 1N60, 1N5817, etc.

I specified a TL062 dual op amp. I tried several but I liked the way these work best. The circuit uses a single TL062.  It may also work OK with two TL061s.

All the pots I used are linear taper. Substitutions are OK, such as 470k instead of 500k. Close enough to work.

I don't have a layout. It's wired on perfboard. I've only glanced at Marcos' layout. If I may be so bold, I suggest you not try this circuit until you've successfully completed several less complicated circuits and played around with them a bit. There are lots of pots to wire up and the TMK offers a great deal of ability to oscillate uncontrollably.

[Dan N]

Marcos, you need to double check your layout. Looks like one connection of P3 need to be moved to pin 2 of the opamp. Have not checked further.

[Marcos - Munky]

Thanks, Dan. I will take a look.

EDIT: Thanks a lot, the layout was wrong. Both side lugs of the P3 was connected in my layout. Now I corrected it, it's the same link.

[bobbletrox]

I love Tim's circuits.  They're small, yet make really unique sounds and are a great chance to use interesting ICs.

[Marcos - Munky]

I love Tim's circuits.  They're small, yet make really unique sounds and are a great chance to use interesting ICs.

I agree!!!!!! :twisted:  :twisted:  :twisted:

[webero]

Excuse me but... What is exactly a "jumper"?

Ok, i know, im not an electronic engineer...

Marcos-Munky: are U sure your layout is alright?

Greetings 4 everyone!

webero

[Marcos - Munky]

I think the layout is correct. I didn't tested it. You can check it yourself to see if you find any errors. A jumper is only a wire to "jump" a track in the PCB. You can use a piece of wire or a resistor leg. And put it in the components side of the board.

[webero]

Hi Munky

Thank u so much!

Ive got some occupations this week but, in 10 days, im gonna try to build that piece of art !

Thank u again

i see you in 10 days

[Marcos - Munky]

OK. I'm very curious to see a review of it. The soundclip is very cool.

[webero]

Hi to everyone (specially to Marcos - Munky)

Im just building a TMK using the Marco's PCB.

The effect doesn't work (obvously!) and I don't exactly why but I think it is something related with the "ground".

Does anybody know how can I join the cables to the ground?

Is the ground the same as "-9 V"?

My guitar doesn't sound. The only thing i can hear is a hum

Another question: how can i connect the input and output jacks?

Thanks

Javi

[Samuel]

a jumper is just a piece of wire - place it in circuit just as you would a resistor. I personally, when going through and clipping off the extra lead length from components after soldering will save the clippings to use as jumpers. The idea is to allow a trace in the circuit to "jump" over one or several other traces without making electrical contact.