PCB to Perfboard? Layout Needed..

[RasmusR]

Hi, I am building the Big Muff Pi from www.generalguitargadgets.com. I have to do it on perfboard. But the thing is, I cant find a perfboard layout, and I am too new to the pedal DIY thing to start guessing how I solder the parts on the board... Could someone please draw a perfboard layout for the BMP for me? The link to the project is http://www.generalguitargadgets.com/index.php?option=content&task=view&id=27&Itemid=52
I bought all the parts and I'm ready to go but I'm afraid to just start putting the parts on the board without being sure. I checked different sites including the gallery of this site, but on this site, there is only the "Triangle Big Muff" which is different. Tomorrow will be a time when I can work on the pedal (at school), so it would be the best if I would have the layout by tomorrow. Any help would be greatly appreciated.
Thanks,

[StephenGiles]

By tomorrow indeed! You must be joking. Get a piece of graph paper and try to work it out yourself. If you then post your effort, folks here will surely check it out and provide you with any help that you need. It's the best way to learn how to do it I'm afraid.

[mydementia]

Bend component leads in direction of traces on PCB layout and use cutoff component leads for other traces-now you have a perf layout based on the PCB... make sense?
This community is responsive... but you need to do some work first!!  Laying out on graph paper is an excellent start if my recommendation above doesn't make sense...
Good luck - and welcome.
Mike

[RasmusR]

OK, thanks guys, I should have probably reshaped the question to ask for help of where to start.

[Pushtone]

Like mydementia said.

Tape a printout of the layout to your perf board and follow it.. Works great!

[markm]

Take a look here>>>>http://aronnelson.com/gallery/album15

[RasmusR]

Thanks Pushtone, I'll try that. Mark, in that album, there's only the Big Muff Triangle, and i have no idea what that is

[oldrocker]

Marks layout will still work pretty much.  Just go to tonepad.com where they show all 3 Big Muff schematics.  Print all three schems out and use Marks layout and swap components for the Big Muff you want to build.

[markm]

Thanks Pushtone, I'll try that. Mark, in that album, there's only the Big Muff Triangle, and i have no idea what that is

The "triangle" version was the original to my knowledge.
It a popular version but, their are others that are beloved my others as well! 

[RasmusR]

I got the perfboard layout done and I traced the connections with pen (i will solder them together on monday). But I just realized, that when I bought the parts, the lady sold me 7 transistors even though in the schematic theres only 4 required... And what's more, they all seem to be different! Would the thing still work if I mixed the transistors? I really dont even know what is what of them. Heres just some numbers off the sides of them if you could try helping to identify them and recommend me which ones I should use in the circuit. In random order:
1: CBC182 B
2: 2N3904 -725
3: BC337 -25
4: BC182 052
5: BC549
6: CBC182 B
7: CBC182 B

Hmm...Help?

[Pushtone]

I found a few data sheets. My guess is that they are all general purpose small signal transistors.
The important part is the type (NPN) and the pin out (C=collector B=base E=emitter) in that order to match the GGG layout.

GGG recommends 5088s. Got those?

Just try the ones you got. Each will have a slightly different character.
Breadboard it and test the transistors for tone or use machine pin sockets on the PCB and play the swap game.


1: CBC182 B
No find

2: 2N3904 -725
Data Sheet: http://www.fairchildsemi.com/ds/MM/MMBT3904.pdf
This one matches the pin layout for the GGG board.

3: BC337 -25
No find
4: BC182 052
Data Sheet: http://www.fairchildsemi.com/ds/BC/BC182.pdf
This one matches the pin layout for the GGG board.

5: BC549
Data Sheet: http://www.fairchildsemi.com/ds/BC/BC549.pdf
This one matches the pin layout for the GGG board.

6: CBC182 B
No find

7: CBC182 B
No find


Good luck with yer build.

[Torchy]

CBC182 B = BC182 Gain Range B.
                  hfe 40 - 80
                  Datasheet - http://www.ortodoxism.ro/datasheets2/f/0cu50cj28d1ise742975zlcckaky.pdf

BC337-25 = BC337 Manuf Code 25.
                  hfe 60 - 100
                  Datasheet - http://www.ortodoxism.ro/datasheets/fairchild/BC337.pdf

None of those transistors you list are suitable. The schematic calls for 2N5088 transistors for a reason, minimum hfe 350, max 1200 typical 600+.
There are other considerations but in a 9V fuzz they dont really matter.

Its a high gain circuit, you need the high hfe transistors. Try the ones you have but IMHO you'll be disappointed.
Aron sells 5088/5089's really cheap.

Remember Keen's First Law ...

[RasmusR]

Thanks. I knew the moment I saw that the transistors that the lady at the store had messed up... I wish I spoke Hungarian I will just order some from online along with some other things I need anyway.