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 Forum index » DIY Hardware and Software » Thomas Henry designs
Bass++ single voice pcb layout...
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inlifeindeath



Joined: Apr 02, 2010
Posts: 315
Location: Albuquerque, NM

PostPosted: Mon Nov 08, 2010 7:34 am    Post subject: Bass++ single voice pcb layout... Reply with quote  Mark this post and the followings unread

Hey guys!
I've been trying to design a pcb for just a single Bass++ voice (the electronic peasent version). I've been using the free version of Eagle and the small size board they allow you is making it almost impossible! Has anyone laid one of these out? Doesn't have to be the EP version. Thanks!
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inlifeindeath



Joined: Apr 02, 2010
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Location: Albuquerque, NM

PostPosted: Tue Nov 09, 2010 3:28 pm    Post subject: Reply with quote  Mark this post and the followings unread

here, i'll post my eagle schematic file, in case someone more talented than myself wants to give it a shot. Thanks!


Bass ++.sch
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State Machine
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PostPosted: Thu Nov 11, 2010 5:21 am    Post subject: Reply with quote  Mark this post and the followings unread

Quote:
Eagle and the small size board they allow you is making it almost impossible!


I am curious about what makes it impossible. Is it because it can't route the design into the board size constraint? If so, maybe changing from DIP to SOIC packages will make it fit. Also, using SMT or 1/8 watt standard axial or thru hole resistors would help you fit the design. I don't want to assume.

Are you willing to to have a PCB manufactured from an Express PCB file? If so, maybe I can hack up my quad version into a single one. You did mention a version I am not familiar with. Is it different than the TH version? If so, what are the deltas? Am I asking too many questions? lol ....... Laughing MIne is strictly a TH version. No mods.

OK, lets see what we can do for you. Wink

Bill
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PickNick



Joined: Oct 16, 2009
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PostPosted: Thu Nov 11, 2010 6:28 am    Post subject: Reply with quote  Mark this post and the followings unread

hey!
i already did one...
the first version is based on the original schemo...
the second consist the waveshaper function from EP.
i used eagle.
not the best design, but working:)
i can share if it's not problem...

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Last edited by PickNick on Sat Nov 24, 2012 3:35 pm; edited 1 time in total
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State Machine
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PostPosted: Thu Nov 11, 2010 8:30 am    Post subject: Reply with quote  Mark this post and the followings unread

Quote:
hey!
i already did one...
the first version is based on the original schemo...
the second consist the waveshaper function from EP.
i used eagle.
not the best design, but working:)
i can share if it's not problem...


Wow, nice ! Cool Thanks for sharing that layout and how convenient is that? Already an Eagle layout. Wink

Bill
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inlifeindeath



Joined: Apr 02, 2010
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Location: Albuquerque, NM

PostPosted: Thu Nov 11, 2010 10:48 am    Post subject: Reply with quote  Mark this post and the followings unread

State Machine wrote:
Quote:
Eagle and the small size board they allow you is making it almost impossible!


I am curious about what makes it impossible. Is it because it can't route the design into the board size constraint? If so, maybe changing from DIP to SOIC packages will make it fit. Also, using SMT or 1/8 watt standard axial or thru hole resistors would help you fit the design. I don't want to assume.

Are you willing to to have a PCB manufactured from an Express PCB file? If so, maybe I can hack up my quad version into a single one. You did mention a version I am not familiar with. Is it different than the TH version? If so, what are the deltas? Am I asking too many questions? lol ....... Laughing MIne is strictly a TH version. No mods.

OK, lets see what we can do for you. Wink

Bill


It's a combination of the size of the board and probably my inexperience with the program. i'm really not set up to do SMT or afford manufactured boards, but thank you so much for the offer and tips. Definately appreciated!

PickNick, you are the man! thank you so much! i'll have to post some pics and soundfiles when i get it all put together! I love EM!
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inlifeindeath



Joined: Apr 02, 2010
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Location: Albuquerque, NM

PostPosted: Thu Nov 11, 2010 10:50 am    Post subject: Reply with quote  Mark this post and the followings unread

also, here is the modded version I was talking about. I believe the EP posts on this forum, and if he's reading this, I love your site and kind of want to live out in the wilderness like you! haha anyways here's the link
http://www.electronicpeasant.com/projects/bassbox/bassbox.html
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PickNick



Joined: Oct 16, 2009
Posts: 82
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PostPosted: Thu Nov 11, 2010 2:57 pm    Post subject: Reply with quote  Mark this post and the followings unread

thank you guys!
i will post the details soon.
i made this layout in the board editor,
because i always have some problem with the autorouter...
after that i used Gimp for the makeup:)
there is 3 jumpers.
maybe there is some error in the names...
i will double check the file and upload
if it's not problem for Bill and Thomas.
i planning to make another version with sweep decay,
because i don't like so much the EG now.
i looking for some more controllable bass drum sound.
now i use XRVCO, Ian Fritz Dual AD/AR, MFOS VCA and Wasp filter
to create my funny HardBass Sound:)

sorry for my english...too much beer in the past:)

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inlifeindeath



Joined: Apr 02, 2010
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PostPosted: Thu Nov 11, 2010 3:43 pm    Post subject: Reply with quote  Mark this post and the followings unread

haha don't apologize for drinking beers! i'm having a few Guinness tonight as well.
PickNick, you are a gentleman and a scholar!

Last edited by inlifeindeath on Fri Nov 12, 2010 10:41 am; edited 1 time in total
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PickNick



Joined: Oct 16, 2009
Posts: 82
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PostPosted: Thu Nov 11, 2010 5:54 pm    Post subject: Reply with quote  Mark this post and the followings unread

hehh...
you are really fast!
there is some rules//not mine// in this forum if you post some layout.
like...you have to put Thomas Henry name to the board...etc
i will do this in Gimp soon...

uhh
i hope i'm better than google translate:)

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furio



Joined: Dec 25, 2009
Posts: 105
Location: Austria

PostPosted: Tue May 03, 2011 12:51 am    Post subject: Reply with quote  Mark this post and the followings unread

Thanx PickNick, your PCB looks nice. I have also drawn one with Inkscape on GNU/Linux as my first PCB artwork, but I don't have C3-C6, I don't understand where to install it.

Is it not relevant to install C3-C6?

On mine I have obtained shorter jumpers, a on-board mod to put double and triple C2 capacity for a switch to obtain standard, bass and sub-bass sounds. I have tried to put an audio input and injected noises and shimmers to try to create snares and others metallic sounds, but without positive results.

I like so much to feed the BASS++ output to a waveshaper or a bit-cruncher and then into a vcf for obtain funny drum sounds.

Now I'm very curios to understand the C3-C6 function and location ...and to try the WAVE mod.

I have found my PDF file... Please don't laugh at me because this is my very first time for a PCB Artwork.


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PickNick



Joined: Oct 16, 2009
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PostPosted: Tue May 03, 2011 3:27 am    Post subject: Reply with quote  Mark this post and the followings unread

hey all!
sorry for the long delay.
i didnt check the whole pcb yet...
some parts name are mislabeled after i added the wave mod.
but inlifeindeath already built it...so i hope its works.
good luck with it!


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Last edited by PickNick on Sat Nov 24, 2012 3:27 pm; edited 2 times in total
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inlifeindeath



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PostPosted: Tue May 03, 2011 6:37 am    Post subject: Reply with quote  Mark this post and the followings unread

yeah, there's some mis-labeling. I just made sure to follow the schematic before i installed anything on the board.
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State Machine
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PostPosted: Wed May 11, 2011 10:09 am    Post subject: Reply with quote  Mark this post and the followings unread

If I may interject:

Quote:
Now I'm very curios to understand the C3-C6 function and location


C3,4,5,6 are 0.01 uF ceramic disk bypass capacitors that mount close to the power pins of IC 1 and 2. They are not shown on the schematic but, instead, are included as a note in the original TH schematic. I don't see these capacitors on any of the layouts just to give a heads up Wink

Bill
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inlifeindeath



Joined: Apr 02, 2010
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PostPosted: Wed May 11, 2011 2:22 pm    Post subject: Reply with quote  Mark this post and the followings unread

oops! yeah, i meant to add that i added .1uf ceramics by the IC power pins
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PostPosted: Wed May 11, 2011 4:03 pm    Post subject: Reply with quote  Mark this post and the followings unread

Easy to miss but we caught it before you committed Wink

Have fun!
Bill
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PickNick



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PostPosted: Sat May 14, 2011 2:15 pm    Post subject: Reply with quote  Mark this post and the followings unread

oops...
i did some changes,
and i uploaded again the new pcb file.
here it is the 4 ceramic caps places.
i hope its close enough to the ICs.
i did it gimp...so i don't have an updated doc file.


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State Machine
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PostPosted: Sat May 14, 2011 7:34 pm    Post subject: Reply with quote  Mark this post and the followings unread

Perfect !!! Cool Cool

Bill
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furio



Joined: Dec 25, 2009
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PostPosted: Sun May 15, 2011 1:59 am    Post subject: Reply with quote  Mark this post and the followings unread

State Machine wrote:
C3,4,5,6 are 0.01 uF ceramic disk bypass capacitors that mount close to the power pins of IC 1 and 2. They are not shown on the schematic but, instead, are included as a note in the original TH schematic. I don't see these capacitors on any of the layouts just to give a heads up Wink


thanx Bill, I have read some text's about the bypass capacitors, maybe understand a bit. I wanna try to build the last PickNick's PCB, and thank him for the new one, hopefully with the bypass caps the stability of the audio output level results improved Smile
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State Machine
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PostPosted: Sun May 15, 2011 7:52 am    Post subject: Reply with quote  Mark this post and the followings unread

Quote:
thanx Bill, I have read some text's about the bypass capacitors, maybe understand a bit. I wanna try to build the last PickNick's PCB, and thank him for the new one, hopefully with the bypass caps the stability of the audio output level results improved


Your most welcome. They do make the world of difference. The general rule is one cap per supply pin on every IC in a design. Generally as close as practically possible. I usually use 0.1 uF capacitors on everything.

Also feedback capacitors in operational amplifier circuits help keep oscillations under control. They form low pass filters with the feedback resistor but you must make sure you calculate a value such that you pass your intended band of frequencies but cut off the unwanted ones.

Bill
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PickNick



Joined: Oct 16, 2009
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PostPosted: Sat Nov 24, 2012 3:25 pm    Post subject: Reply with quote  Mark this post and the followings unread

hi all!

i made a new documentation for the single-side Bass++.
you have to connect the A-A, B-B and D-D pads.
i left the C12 elko...you have to install between the Impact Tone-Impact Volume pots.
use the original and Electronic Peasant
schematic to find the right part values.
i hope the part names now are ok!
pls let me know if you find some error.

Peter


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paulstone



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PostPosted: Sat Jun 22, 2013 2:41 pm    Post subject: Reply with quote  Mark this post and the followings unread

PickNick wrote:
hi all!

i made a new documentation for the single-side Bass++.
you have to connect the A-A, B-B and D-D pads.
i left the C12 elko...you have to install between the Impact Tone-Impact Volume pots.
use the original and Electronic Peasant
schematic to find the right part values.
i hope the part names now are ok!
pls let me know if you find some error.

Peter


Hi guys hi PickNick
thanks for your pcb layout i want try to build it , will work fine ?
which is the value of C18 ?

thanks
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PickNick



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PostPosted: Sun Jun 23, 2013 2:03 am    Post subject: Reply with quote  Mark this post and the followings unread

hi paulstone!

yes, it works.

C18=C12 2.2uF

pls follow the schematic!

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paulstone



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PostPosted: Sun Jun 23, 2013 3:01 am    Post subject: Reply with quote  Mark this post and the followings unread

PickNick wrote:
hi paulstone!

yes, it works.

C18=C12 2.2uF

pls follow the schematic!


lol now i understood i've installed eagle free for print the schematic
in the first page of this thread

thank you for help .
ciao
paul
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paulstone



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PostPosted: Mon Jun 24, 2013 11:42 am    Post subject: Reply with quote  Mark this post and the followings unread

PickNick wrote:
hi paulstone!

yes, it works.

C18=C12 2.2uF

pls follow the schematic!


Hi PickNick

sorry if disturb again

i realised that there is many errors between the schematic in the first post and your layout , so i'm much confused Smile

please have you the schematic update of your layout to share ? .

if schematic update no exist , even the pcb top layout with cap and resistor value can help me a lot .

thank you in advanced
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