I've just built one of these using the board from the DIY Stompboxes thread. It is an epic, utterly brilliant effect (search for the demo's on YT). But the board, which I suspect is vintage correct (there are also a couple of mistakes on it...), makes boxing it up a absolute pain in the butt. Mainly down to the size of the thing meaning it needs a MASSIVE box and that all the pots/sockets are board mount. This circuit shrunk down to a sunking sized board, with an integrated charge pump, would be awesome, if possible.
Yep, I've been wanting to do this one for a while. I'll make it happen, but it won't be for a few weeks.
Awesome. Just need to decal my mossive one up and that'll be done. Would love to make a smaller one at some point.
+1 I have been wanting to build this one for a while. It's first on my to do list once I finish all the projects currently on my bench...
+1,000,000
Just checked out the original on Youtube and it sounds awesome. Me want.
Would be cool if there was a way to control the modulation with a pedal.
This thing is going to be badass. I'm happy with the progress I've already made :)
+1
I would take a PCB for sure.
I'm thinking a 125B size is likely.
Whoa that is a wild effect. I believe when I bought my BYOC DOD 440 clone I was looking for something more like this colorsound dipthonizer, cause I wasn't very pleased with the BYOC kit.
One more great project offered by the Bean! Nice!
I have some final checking to do on the schematic. If everything is good, I will submit this for a prototype this week. This one will go straight to a manufactured board. Looks like the 125B size is doable!
[attachment deleted by admin]
whoa!! that was quick. ;D
Awesome, thanks madbean! So it looks like you will need a separate road rage board to go along with this board right?
I decided against a charge pump in interest of conserving space. Not knowing the current draw, it might require more juice than the MAX1044 can provide. So, an LT1054 may be in order. I'll know more in a couple of weeks.
Wow! That's awesome bean!
Very wicked! I'm sure pumped for this one too....!
Cheers!
Ok awesome, I need to remember to grab some of those LT1054s on my next order.
Hey Brian,
I know you've been super busy lately. I was wondering if there was any progress on this project? Even an official BOM for your board would be awesome. I'm waiting on placing a small bear order for whatever I need but don't have for a dipthonizer and a forumvibe.
Thanks!
Dan
Actually, the prototype has been built, but there is a problem with it. I have not had time to track it down yet. I only finished it a couple of days ago and I'm in the process of reviewing my schematic re-draw to check for errors.
I can post the BOM here tomorrow.
OK thanks so much! Sorry to hear you had some problems with the prototype. Juansolo mentioned in the OP and I've also heard a few guys on BYOC say that the original layout has some errors. That's why I stayed away from building this at first. So if the schemo looks correct maybe looking at the thread on BYOC will help a little. Good luck!
Quote from: dbharris on May 11, 2011, 11:21:00 PM
OK thanks so much! Sorry to hear you had some problems with the prototype. Juansolo mentioned in the OP and I've also heard a few guys on BYOC say that the original layout has some errors. That's why I stayed away from building this at first. So if the schemo looks correct maybe looking at the thread on BYOC will help a little. Good luck!
With mine there was a ground that wasn't connected where it should have been, and it needed a link on one of the board mounted sockets as the ones I sourced were the opposite way around to the ones the board was done for. Otherwise it was pretty much as the layout on the thread.
The biggest problems after that were making it fit in the enclosure with the through board pots (which were a little short, I'd do it different next time) and the fact that the sockets and 4 pos switch are backwards if you do it that way.
R1 100k
R2 2M7
R3 27k
R4 100k
R5 180k
R6 4k7
R7 1k
R8 3k9
R9 100k
R10 1k
R11 3k9
R12 33k
R13 47k
R14 2M7
R15 2M7
R16 10k
R17 4k7
R18 2k2
R19 1k
R20 220k
R21 1k
R22 100k
R23 1M
R24 1M
R25 2M2
R26 1M
R27 270k
R28 1M
R29 470k
R30 1M
R31 10k
R32 100k
R33 100k
R34 220k
R35 100k
R36 27k
R37 47k
R38 220k
R39 3k3
R40 3k3
R41 3k3
R42 1M
R43 22k
C1 10n
C2 200pF - 2n2
C3 2u2
C4 100n
C5 4n7
C6 4n7
C7 1n5
C8 1n5
C9 100n
C10 2u2
C11 2u2
C12 470n
C13 220n
C14 100n
C15 47n
C16 100n
C17 100uF
C18 47uF
D1 - D11 1N4148
D12, D13 5v1 Zener
IC1, IC5 LM324N
IC2, IC3 3080E
IC4 4558N
SW 4P2-3T
FUZZ 10kB
SWEEP 10kB
Thanks Brian!
If anyone needs a UK source of genuine 3080Es, I got mine from Bowood Electronic (http://www.bowood-electronics.co.uk/product_info.php/ca3080e-p-196). Comes in at £5.50 for two inc delivery.