krank DM tonestack.

[jogina111]

Im to build a krank DM since someone bought my deluxe bazz fuss but a got a little issue about the DM tonestack...can I remove the fenderish tonestack and use this instead http://amps.zugster.net/images/articles/tonestacks/6G8.gif or any other tone control? If yes, from which part should the DM and the tonestack intersect?

[PRR]

> ...can I remove the fenderish tonestack and use this instead

Yes.

[NPrescott]

Assuming this schematic from the gallery is correct...



Then the DM tonestack would be on the bottom-right, from pin 5 (470p/33k/250k/22n/22n/1M/25k) the 1M pot on the output will need to stay - You do want a master volume, right?!

[jogina111]

reducing the pot value of treble and pot wont make the circuit right? How great woul it affect the tonal range I can get.? Cant find 1M pots in my province..

[NPrescott]

I don't have any personal experience in modifying the DM - what are you looking to accomplish in changing the tone stack?

Even if you can't find any 1-M potentiometers in your area, the tone stack that you posted only calls for a 1-M on the Bass, you could just reuse the existing parts.

[PRR]

> Cant find 1M pots in my province..

Use 470K/500K. Most of the action is in the 100K-500K part of the knob. In *this* circuit the last 500K of a 1Meg adds just a little bit more, often more than any guitarist wants.

[NPrescott]

I got to playing around with the Tonestack Calculator, I think these two are about right for the existing vs. your proposed. The values may be a bit off, but I think the general shape should be right...

Existing:


Proposed:

[jogina111]

oh...thats it.. I'm gonna have to use a bmp tone control..thanks for the help guys...I cant build a TMB tonestack .

[NPrescott]

This shouldn't be too much trouble for you, if you'd like to start with the BMP tonestack though you may start with Beavis Audio, here:
http://www.beavisaudio.com/techpages/BigMuffToneControl/

If you're looking to try other (simple) options you might consider Jack Orman's stupidly wonderful tone control (SWTC):
http://www.muzique.com/lab/swtc.htm

The frequency sweeps I posted were just to give you an idea of what to expect though, don't let me scare you off. The existing tone control has a slight/moderate mid-scoop and the proposed (the one you asked about) allows for more drastic changes to the treble/bass content.

[jogina111]

I've used a bmp tonestack (ramshead mod) from rkerkhof.ruhosting.nl/Taas/Mods/Big%20Muff.htm and it worked great.. Thanks for assistance and ideas guys!

[jogina111]

oh I got another question. In the lpb1-like part of the DM, what does the 4.7M, 47k and 470k resistors do... I cant find those values too so I subtituted 4M, 1M and 100k respectively. Have Ive done this good or should I have used 5M,50k and 500k?

[Devius]

What province are you in?

[jogina111]

Im in Virac, Catanduanes Philippines.

[jogina111]

Im in Virac, Catanduanes Philippines.

[jogina111]

ok, Ive done it. heres a video.. cant fret cuz  Im holding me phone. http://www.facebook.com/photo.php?v=498680876832903