Machine

[night-B]

Here's my recently finished machine. As a nine inch nails fan I named it the "Pretty hate machine".
First time I'm using a madbean fabbed board, and it's really a pleasure to solder!
It worked perfectly once I've finished the soldering.
I love that cool effect I'm now using with my kokbox. It adds so much gain, grain... Perfect for grunge, industrial, or boosting your solos! A unique sound under the foot.
Sorry for the poor pics using my iphone.
Thanks Madbean for such great PCBs 

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[stecykmi]

that's a pink box alright...

good work.

[gtr2]

Cool 

[night-B]

My wife always asked me to order one of those hot pink enclosures from PPP. Thought it would match with "pretty hate machine"   

[bigmufffuzzwizz]

Thats rad! Bet it sounds great

[night-B]

I heard of people getting low output of their diy machine, mine is really loud 
I used some fairchild Bs170 I found for cheap on ebay :
http://cgi.ebay.fr/ws/eBayISAPI.dll?ViewItem&item=120691518182&ssPageName=STRK:MEWNX:IT

[Om_Audio]

Nice job. What pot did you use for the trim knob? Today I ordered the last parts I need for this build- I'm excited as it will be my first build. I ordered a 1k and a 2k so I could test and use either. Cheers!
O

[night-B]

Like the BOM on the pdf, I took a 5kB linear pot. I'm happy to use it as a pot 'cause it really tweak the sound. Opening the box to adjust a trim in that case is a bad choice.
Good luck for your first build! We can help you if you have some problems 

[night-B]

I just tried the machine with the retrograde, and using an octave effect with it sounds really cool!
This is an endless entertaining machine 

[Om_Audio]

Hah, you used a 5k- I was going to order an extra one of those yesterday but removed it- I will have a 1k and 2k to experiment with. Also, I have been looking at every page of this thread (awesome stuff) and am wondering if I should socket anything like transistors or diodes to play with. I see a lot of other folks choose to socket stuff. What do you think?
http://www.diystompboxes.com/smfforum/index.php?topic=36392.0
O

[night-B]

In the case of the machine,  I don't think that changing the diodes can radically change the sound so you don't need to socket them. On some other build (with diode clipping) you can socket the diodes to play around with other ones, or switching 2 or 3 types of diodes with a toggle switch (like in the uproar or the sunking eleventy bajillion).

Socketing the transistors is usefull to avoid overheating during the soldering.
If you plan on changing a transistor of the BOM by another one, read the datasheet of the transistor first.
There are different types of transistors, so their pins are not always in the same order, so it changes the place of the pins of the pcb. They can also have radically different HFE.


Be carefull with the Bs170, they are static sensitive.

[bigmufffuzzwizz]

Be carefull with the Bs170, they are static sensitive.

I've been meaning to ask, how do you go about dealing with this?

[Om_Audio]

I am a freelance computer IT, and as far as I know when dealing with static you just need to touch a grounded conductive object before handling the parts. They also make wrist straps with a wire and alligator clip to keep yourself grounded (hah) I also used a static/radiation filter when I used to use a big CRT computer monitor- it had a wire and clip as well that you would attach to the computer chassis or other ground.

http://en.wikipedia.org/wiki/Antistatic_wrist_strap

heh:
http://www.charleswater.co.uk/images/catalog/FieldServiceUse.jpg

I also have to say in over 10 years of working I have never had an issue- just touching a grounded object first always seems to do the trick.

[bigmufffuzzwizz]

I am a freelance computer IT, and as far as I know when dealing with static you just need to touch a grounded conductive object before handling the parts. They also make wrist straps with a wire and alligator clip to keep yourself grounded (hah)
http://en.wikipedia.org/wiki/Antistatic_wrist_strap

heh:
http://www.charleswater.co.uk/images/catalog/FieldServiceUse.jpg

I also have to say in over 10 years of working I have never had an issue- just touching a grounded object first always seems to do the trick.

Yea I saw that with a quick search but it says that wristband must be grounded, so I'm guessing they mean the ground in my house? I'll keep researching and report back.
This is why they wouldn't give us CMOS chips to fool around with in school...

[Om_Audio]

The wrist strap to computer chassis I think assumes the power supply is connected (3 prong grounded) which is connected to your house ground.