A/DA Flanger retrofit with MN3007

[moosapotamus]

Still also need to swap the 1K and 14K resistors like OSA mentioned. So here...



Right?

Thanks
~Charlie

[oldschoolanalog]

Kind of rough on the eyes for midnight. A bit of a sadistic streak, have we Charlie? 
However, between squints and blinks, it looks all good. Layout on the way?
Thanks (I think. )
Dave
PS: Is there something subliminal in there?

[moosapotamus]

PS: Is there something subliminal in there?

Yes. You must stare very closely for a very, very long time... And listen to Magical Mystery Tour backwards at the same time... Maybe have a couple of drinks, too.

So, anyway...

Yes, I fixed the layout (but you'll be the judge of that ). Won't be able to post it until later tonight, tho.

~ Charlie

[moosapotamus]

OK, here's the latest round of corrections. The area in question now looks like this...



And the full layout is here...
http://moosapotamus.net/ADAflangerOVRmn3007.gif

To use the 3007 chip...
Do not install Q2. Jump the outside legs of Q2 together.
Do not install the 0.1uF capacitor located below C33.
Install jumpers from P to P1, R to R1 and T to T1.
Install the 1K and 14K resistors as shown.

To use a 3207 chip...
Install Q2.
Install the 0.1uF capacitor located below C33.
Install jumpers from P to P2, R to R2 and T to T2.
Install the 1K resistor where the 14K is shown.
Install the 14K where the 1K is shown.

Check it out please.

Thanks
~ Charlie

[oldschoolanalog]

Yes. You must stare very closely for a very, very long time... And listen to Magical Mystery Tour backwards at the same time... Maybe have a couple of drinks, too

I tried what you said in vain. Maybe this is more of a job for Laughing Sam's Dice...

Let the games begin.
The 3007 layout was correct the first time, and still is. Very  .
After it took me a minute to realize how you went about it (Real nice work!); The 3207 layout is now "on the money". Very, very  .
Thanx for your effort and patience. You rule!
Dave

[moosapotamus]

Allright! Thanks, Dave. I guess it's time to take this back to the For Sale/Trade forum.

Thanks!
~ Charlie

[oldschoolanalog]

OK. As this seems to be getting wrapped up; I am going to organize as much of the BBD retrofit data I can find and start a new "The BBD Retrofit Thread" early next week. By popular demand  . Now it's time to get to work on all the questions and ideas that were mentioned earlier here. It'll be nice to have all this info in one place.
Stay tuned...
Dave

[Rocket Roll]

Does this mean we'll soon see a ready-to-print PCB layout here or on moosapotamus.net?

[oldschoolanalog]

Does this mean we'll soon see a ready-to-print PCB layout here or on moosapotamus.net?

Check it out.
http://www.diystompboxes.com/smfforum/index.php?topic=72682.0
...And a good time was had by all...
Dave

[moosapotamus]

Does this mean we'll soon see a ready-to-print PCB layout here or on moosapotamus.net?

So that would be a big "yes"!

Please chime in on that thread over in the For Sale/Trade forum so I can get a rough head count of how many folks are going to be up for building this. Would like to get a feel for the number of boards to have made up.

Thanks
~ Charlie

[Ry]

Any plans to make up a daughter board for the older revision boards out there  

Alternately, a set of plans for it would be appreciated.  I can't quite justify the cost of a whole new board, but I would very much like to compare the two.

[moosapotamus]

Any plans to make up a daughter board for the older revision boards out there  

It's really pretty simple. In addition to the BBD chip, six components and a trim pot... that's it. In fact, you could probably fit it into the open perfboard area in the lower left corner of the PCB and use a few flying leads to tie it in.

Alternately, a set of plans for it would be appreciated.  I can't quite justify the cost of a whole new board, but I would very much like to compare the two.

For starters, the schematic is at the top of this page. But I think some details on what connection to make where could definately be arranged.

~ Charlie

[Ry]

A quick diagram would be great, although I'm sure I can figure it out if I spent a bit of time with it 

Thanks!

[carrejans]

Sorry, if this is asked before.

Is it possible to use 3205 in this new version of the ADA?

[oldschoolanalog]

Is it possible to use 3205 in this new version of the ADA?

If you mean a 3207 look here. Click on the first link in the first post.  Read the building notes.
http://www.diystompboxes.com/smfforum/index.php?topic=73483.0
If you do mean a 3205, realize that: The 3207 is a 1024 stage BBD. The 3205 is a 4096 stage BBD. The 3207 has a standard 8 pin DIP footprint. The 3205 has 8pins, but has the footprint of a 14 pin chip.
Save them 3205's for long delays. The 3207 is inexpensive and readily available.
Dave

[carrejans]

Is it possible to use 3205 in this new version of the ADA?

If you mean a 3207 look here. Click on the first link in the first post.  Read the building notes.
http://www.diystompboxes.com/smfforum/index.php?topic=73483.0
If you do mean a 3205, realize that: The 3207 is a 1024 stage BBD. The 3205 is a 4096 stage BBD. The 3207 has a standard 8 pin DIP footprint. The 3205 has 8pins, but has the footprint of a 14 pin chip.
Save them 3205's for long delays. The 3207 is inexpensive and readily available.
Dave

Yep, I did mean a 3205 (it is a clone from Coolaudio). I know it is a 4096 stage BBD; but was just wondering if the 3207 can be swapped with this one without any modifications. (besides the different footprint)

BTW, what are the differences soundwise between the 3207 and 3007?

[oldschoolanalog]

Yep, I did mean a 3205 (it is a clone from Coolaudio). I know it is a 4096 stage BBD; but was just wondering if the 3207 can be swapped with this one without any modifications. (besides the different footprint)

Probably could be made to work. However the minimum delay time would be very limited. I don't think you could clock a 4096 stage BBD high enough to get a real good flange sound. Chorus, maybe.

BTW, what are the differences soundwise between the 3207 and 3007?

Very little. You would have to compare them side by side to notice very subtle differences.
Dave

[carrejans]

Thanks for the answers.
And of course for the adapted design. I ordered one. 

[snap]

bump for baja

[Stratman]

Hi guys Long time lurker...

This thread just reminded me I still have some parts to get for my SAD version of moose's board. I was wondering given all the animated pictures we have so far for alternate chip configurations for the new boards, whether or not instructions for using older boards with an MN3007 was still on the cards?

Regards,
Stratman