Build Report: Burning Crunch (improved Krank D M)

[baracuda]

Oh My God !! Sick Sound !! This like Slash's Sound Really !! 

[served]

Well. I'll give you my picture also.
But I must say, its not the burning crunch and not the Krank DM but it bases on it.

[dschwartz]

Well. I'll give you my picture also.
But I must say, its not the burning crunch and not the Krank DM but it bases on it.

nice build!
did you put a booster or something for more gain?

[served]

I use a separate Booster pedal for boost. And lately I have been using this pedal for boosting my Amp. It sounds good with some Marshall amps. Really crunchy.
Its a little weak for standalone distortion, but its awesome if you combine it. Nothing beats my Boogey so far, but its a good pedal if im tired of the Boogey and need something different.

[dschwartz]

yes, that why i asked if ypou put a booster inside..more gain would be nice for shred style soloing.

[served]

By the way. Thank you for the thread, I wouldn't have built it if you wouldn't have this thread.

[dukie]

Hi guys this is my take on the Burning Crunch...Enjoy!



This is 3 knob version with some obvious mods like the led clipping and boost switch. The tone stack are replaced with simple Tone stack because im too lazy to wired 3 pots and usually i just leave it at full treble 

And here is the sample sounds, i recorded it direct in to my computer sound card.

This is the effect in "Burnin" mode switch off, Crunchy mode off, full volume and gain at 50% then Burnin Switch on at the end of this clip.
BurninPlexis-Clean-CrunchyMode

[This is the effect in "Burnin" mode switch on, Crunchy mode on, full volume and gain at 50% then boosted by MI Audio Crunch Box clone with volume at 50% and 0%drive.
BurninPlexis-CrunchBoxBoost

I really like this pedal, it has marshall-ish amp like sound and crunch! Simple build and easy to modified.



Cheers!

[dschwartz]

sounds good! congratz!!
did you use lm386-1?, i recommend 386-3 or 4, definetly improves the clipping.

[dukie]

sounds good! congratz!!
did you use lm386-1?, i recommend 386-3 or 4, definetly improves the clipping.

Hi thank you Daniel, you're  the one who start this crunchy madness im just messin with it
Yes im using LM386N-1 because thats the one i got, maybe i'll try using JRC386.
One thing confuse me though, as you can see there is no coupling caps at the emitter. When im using any caps from 100p to 1uf at the emitter the sound are more defined but there's hum too? Can you tell me whats going on?


Cheers!

[meffcio]

Hello everyone!
I'm building a KDM for my friend and I have a couple of questions/problems.
1. 2n5088 aren't really avilable here in Poland. Which other transistor should I use for the same/more amount of gain?
2. I'm planning on building KDM with dschwartz's BC tonestack values and the transistor cap he used for more gain. Will this give me a metal pedal, good for palm muting etc? If no, will putting a booster before the KDM circuit help? I thought of using RedRanger for controlable boost range, but maybe you know better options?

[dschwartz]

sounds good! congratz!!
did you use lm386-1?, i recommend 386-3 or 4, definetly improves the clipping.

Hi thank you Daniel, you're  the one who start this crunchy madness im just messin with it
Yes im using LM386N-1 because thats the one i got, maybe i'll try using JRC386.
One thing confuse me though, as you can see there is no coupling caps at the emitter. When im using any caps from 100p to 1uf at the emitter the sound are more defined but there's hum too? Can you tell me whats going on?


Cheers!

the bypass cap at the emmiter boosts the gain of the transistor..maybe that extra gain increases hum..but it is strange anyway since only high freqs are increased..

Hello everyone!
I'm building a KDM for my friend and I have a couple of questions/problems.
1. 2n5088 aren't really avilable here in Poland. Which other transistor should I use for the same/more amount of gain?
2. I'm planning on building KDM with dschwartz's BC tonestack values and the transistor cap he used for more gain. Will this give me a metal pedal, good for palm muting etc? If no, will putting a booster before the KDM circuit help? I thought of using RedRanger for controlable boost range, but maybe you know better options?

i dunno about a replacement transistor..search for something with at least 600 HFE...

it can definetly be  used for metal, but for shred leads, a little extra boost would help..

[served]

I can say that for a juicy palm muting this aint the one. But for softer metal and metal chords, its a good one.

[served]

But sitll a Question about that Burning mod. In the vero layout pin 1 and pin 8 is already connected. Am I right? So you disconnect it to get lower gain.

[served]

So I built a new one!


No sticker yet.

[dukie]

But sitll a Question about that Burning mod. In the vero layout pin 1 and pin 8 is already connected. Am I right? So you disconnect it to get lower gain.

Yup thats right so you can have option from low gain overdrive sound to full distortion. I'm also put the 10K with 0,01uF from pin 1 to pin 5 to stabilize the LM386, but the change are subtle. Recently I've swap the BC549C with AC127 NPN Ge transistor and with little tweaks it work like a charm so i decided to keep this configuration for now.

And congrats on your build!

Cheers!

[deadastronaut]

hi guys..

tried to save the pcb image on page 1....but when i do it comes out totally black on the pcb no white trace outlines......in my photoshop...wtf?.....

also it is massive on print preview..any ideas?..


this sounds like a cool build....if i can get the pcb etc....cheers rob.!

[deadastronaut]

anyone got the burning crunch pcb image?

it comes out totally black when i save it off a page...?

[GREEN FUZ]

Yup, I get the same thing. This is a bit of a roundabout fix and there must be a simpler way to do it but hey!, it works.

Right click on the image, select E-Mail Picture, send it to yourself,save the attachment to a folder of your choice. It should be alright now. Don't ask me why.

[deadastronaut]

weird!...but ill give it a go..strange how it comes out black eh???...

cheers mr fuzz..

[deadastronaut]

Yup, I get the same thing. This is a bit of a roundabout fix and there must be a simpler way to do it but hey!, it works.

Right click on the image, select E-Mail Picture, send it to yourself,save the attachment to a folder of your choice. It should be alright now. Don't ask me why.

i tried..i dont get the email choice..just save as etc....im on xp...