Build Report: Burning Crunch (improved Krank D M)

[GREEN FUZ]

PM'd.

[dukie]

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...

Its a GIF image with transparency, open it up in photoshop or any image editor and save it as JPEG.

Cheers!

[GREEN FUZ]

I couldn't even open the Gif in Photoshop initially. Just got this message: Could not open "C:/ file name, location, blah blah blah" because the file-format module cannot parse the file.
That's why I resorted to the roundabout solution.

In any case, it's sorted now.

[TimWaldvogel]

What does the transistor in the front do, is it an input buffer? And is it necessary?

[TimWaldvogel]

My other question is what does thing sound like when the gain is dialed back to like 10 o clock

[Seltaeb]

I live in Europe and there is different marking of potentiometers ( Linear is "A" and Log is "B").

So my question is, can you tell me which potentionmeter is linear en which one is Log?

[deadastronaut]

im in uk.....log A.... linear is b....

never got round to building this crunch....did the maximus...but it had strange sound on volume backed off
on guitar....

[arma61]

I live in Europe and there is different marking of potentiometers ( Linear is "A" and Log is "B").

So my question is, can you tell me which potentionmeter is linear en which one is Log?

Hi
get you DMM (multimeter), set the pot "half way", misure between center lug and one of the outer lug, if on the DMM you read half of the value stated on the pot case than it's a linear one , othewise it's a log one.

I alway use my DMM with pot as I use to buy pots from everywere in the world, so you know.... to be sure to be sure...

Cheers m8
Armando

edit : probably I misred your question, you mean which is linear and which is log on the circuit, as far I know

- treble pot is linear
- Bass pot is log
- Mid pot is linear





p

[dschwartz]

What does the transistor in the front do, is it an input buffer? And is it necessary?

with a little research about transistors, you´ll find out that the input transistor is a booster, like a LPB1..
it this necessary for the pedal to make it make any sound? no
it this necessary for the pedal to make it sound as expected? YES, definetly

Apart from the gain boost, that stage introduces some asymetric clipping when cranked and some bass filtering.. to me, its a very critical part of the sound..
anyway, i think that an opamp stage would make hell of a better work there..

[nalimen]

hi dschwartz ....i'm nubie here...

i just wanna ask, what is the main differ the lay out you've already post with this one...



i found some differ caps and resistors value on that layout...
thanks for the help before...

[Brymus]

Hi
Its obvious that Daniels is different,
His has been made to fit a small Hammond enclosure.
His has board mounted pots.
His has been tweaked to sound way better than the majority of Krank DM clones and other 386 OD boxes out there.
Go through the circuit and calculate all the high and low pass filters.
Then calculate the gain of the input stage.
I think you will find your answers there.

FWIW all of Daniels designs are worth building,he puts alot of work and research into each of them.

[arma61]

Hi
Its obvious that Daniels is different,
His has been made to fit a small Hammond enclosure.
His has board mounted pots.
His has been tweaked to sound way better than the majority of Krank DM clones and other 386 OD boxes out there.

FWIW all of Daniels designs are worth building,he puts alot of work and research into each of them.

amen brother! +1 on all the above

I've just turn off my newly build Burning Crunch (writing this post still wearing my guitar!) my ears are burning and crunched by it's sound 

[askwho69]

HI!! nice sound! i have something to ask! is there perfboard version on this? im having a hard time looking for stripboard.. i hate philippines lack of things so we are lacking in experiment and explorations ... damn country hehehhe sorry but this country sucks corrupt pass president 

[deadastronaut]

HI!! nice sound! i have something to ask! is there perfboard version on this? im having a hard time looking for stripboard.. i hate philippines lack of things so we are lacking in experiment and explorations ... damn country hehehhe sorry but this country sucks corrupt pass president 

i havent a perf layout..but i took the schematic and converted it to vero (strip) board..today..(not verified.)

i dont know if this will work as it should as i havent tried it yet...if someone can see any flaws in this i'd appreciate
your comments..i think its ok till it gets to the tonestack maybe! i messed up there a bit
i just like messing with this great little programme..diylc...
thanks to d schwartz for  the schematic...rob.


sorry if ive trod on anyones toes with this...pm me and ill remove it if i have ok.....

[askwho69]

thanks a lot bro! but i having a hard time looking for strip board maybe ill etch a pcb!

[deadastronaut]

i have just revised the tonestack!...does this look better?.any comments please!..........

[stringsthings]

....if someone can see any flaws in this i'd appreciate your comments....

for the sake of clarity, i would change the note cut c1, cut c4 to cut f3, cut k4

[deadastronaut]

....if someone can see any flaws in this i'd appreciate your comments....

for the sake of clarity, i would change the note cut c1, cut c4 to cut f3, cut k4

yeah i meant under...... what dya think though!......

i have done the revised tonestack version now..i welcome any comments..or flaws you can see!...



  or   

[askwho69]

is this strip format works?

[deadastronaut]

i havent tried it yet....so its not verified ok.