MB808 PCB

From circuitbending to homebrew stompboxes & synths, keep the DIY spirit alive!

Moderators: Kent, Joe., analogdigital, infradead, lisa, parasitk, plord, sduck

ganchan
Learning to Wiggle
Posts: 13
Joined: Fri Feb 07, 2014 10:47 am

Post by ganchan » Wed Dec 23, 2015 11:35 am

Barcode wrote:Really nice ganchan. Do you plan on adding a LCD to your board?
yes there is space there to put an lcd :hihi:

ganchan
Learning to Wiggle
Posts: 13
Joined: Fri Feb 07, 2014 10:47 am

Post by ganchan » Thu Dec 24, 2015 8:30 am

piccl wrote:Bug by looking at your board and comparing it to the composite they look to be quite similar. It's too bad the composite is missing the mixer I was getting kind of excited.

I have found images of the mixer doug had for v3. I wish I understood electrical engineering more so I could get this to work. I wonder if I asked EE university student, if they would be able to help me.



i have the mixer in place and routed, it needs to be double checked btw.

ganchan
Learning to Wiggle
Posts: 13
Joined: Fri Feb 07, 2014 10:47 am

Post by ganchan » Thu Dec 24, 2015 8:35 am

jarvis wrote:Looks great, ganchan! I'm interested to see how that works out for you.

And the pots line up! It's the little things... :hihi:
Yes pots are perfectly allined, it tooks me some time to figure them out, make the right grid calculations, and than repositioning all the items on the board, but the result is perfect.
The problem is if we'll find the pots with that pinout, but seems that we have a source.

G.

ganchan
Learning to Wiggle
Posts: 13
Joined: Fri Feb 07, 2014 10:47 am

Post by ganchan » Wed Jan 13, 2016 11:03 am

A quick update:
https://db.tt/RYLUdhSn

+5v +15v RC SC Accent Trigger Core: traced, some traces need to be wider.
I'll start instruments tomorrow.

G.

User avatar
Barcode
Ultra Wiggler
Posts: 842
Joined: Sun Nov 20, 2011 12:12 pm
Location: The Wasatch Front

Post by Barcode » Wed Jan 13, 2016 11:08 am

Nice! Looks good.

User avatar
Altitude909
Super Deluxe Wiggler
Posts: 3205
Joined: Wed Aug 24, 2011 5:13 pm
Location: Meesheegan

Post by Altitude909 » Wed Jan 13, 2016 12:13 pm

Provision for a switching 5V regulator, no need for a linear one and that badboy gets HOT

ganchan
Learning to Wiggle
Posts: 13
Joined: Fri Feb 07, 2014 10:47 am

Post by ganchan » Fri Jan 15, 2016 4:14 am

Altitude909 wrote:Provision for a switching 5V regulator, no need for a linear one and that badboy gets HOT
Nice, i'll take it into account!

G.

ganchan
Learning to Wiggle
Posts: 13
Joined: Fri Feb 07, 2014 10:47 am

Post by ganchan » Sun Jan 17, 2016 11:22 am

Board finished.. quite so.

It needs some finishing about power traces, documents, etc.

https://www.dropbox.com/s/le32ngw4efe25 ... 0.png?dl=0

There are a lot of improovements that i can make on the board, i've just finished tracing to check everything.
Most of them are wierd traces runs that can be simplified and changing the DIN DOUT pinout connections to make them more colsed to the destination.
I'd like to brig back the instrument pot.

User avatar
Starspawn
Ultra Wiggler
Posts: 757
Joined: Tue Mar 06, 2012 8:12 pm
Location: Norway

Post by Starspawn » Sun Jan 17, 2016 12:15 pm

ganchan wrote:
jarvis wrote:Looks great, ganchan! I'm interested to see how that works out for you.

And the pots line up! It's the little things... :hihi:
Yes pots are perfectly allined, it tooks me some time to figure them out, make the right grid calculations, and than repositioning all the items on the board, but the result is perfect.
The problem is if we'll find the pots with that pinout, but seems that we have a source.

G.
The switched pots? are aligned by the top side of pot, but not by where the actual shaft will be? Or am I looking at it wrong?

ganchan
Learning to Wiggle
Posts: 13
Joined: Fri Feb 07, 2014 10:47 am

Post by ganchan » Sun Jan 17, 2016 1:14 pm

Starspawn wrote:
ganchan wrote:
jarvis wrote:Looks great, ganchan! I'm interested to see how that works out for you.

And the pots line up! It's the little things... :hihi:
Yes pots are perfectly allined, it tooks me some time to figure them out, make the right grid calculations, and than repositioning all the items on the board, but the result is perfect.
The problem is if we'll find the pots with that pinout, but seems that we have a source.

G.
The switched pots? are aligned by the top side of pot, but not by where the actual shaft will be? Or am I looking at it wrong?
At this resolution it seems so, but they are alligned by the center of the shaft.

G.

ganchan
Learning to Wiggle
Posts: 13
Joined: Fri Feb 07, 2014 10:47 am

Post by ganchan » Wed Feb 03, 2016 1:58 pm

quick update, the final setup, if anyone interested..

https://www.dropbox.com/s/1rn6nv6n1079s ... 6.png?dl=0

User avatar
kid303
Learning to Wiggle
Posts: 32
Joined: Sat Jan 20, 2018 10:25 am
Location: North Wales

Post by kid303 » Sun Oct 21, 2018 4:27 am

are these files still available as the dropbox link is no longer valid.

Post Reply

Return to “Music Tech DIY”