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 Forum index » DIY Hardware and Software
Euro 281 -- Double Dual Function Generator
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Ayab



Joined: Oct 27, 2015
Posts: 180
Location: London, UK

PostPosted: Wed Aug 15, 2018 3:15 pm    Post subject: Reply with quote  Mark this post and the followings unread

Hi AlanP

Great project.

I'd be interested in a set of pcb's and a panel

Very Happy
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MapacheRaper



Joined: Feb 15, 2018
Posts: 166
Location: Spain

PostPosted: Mon Aug 20, 2018 6:28 am    Post subject: Reply with quote  Mark this post and the followings unread

Idem, I would go for one or two PCB sets depending on price.

Do you have the BOM to take a peek?
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Ayab



Joined: Oct 27, 2015
Posts: 180
Location: London, UK

PostPosted: Mon Aug 20, 2018 8:34 am    Post subject: Reply with quote  Mark this post and the followings unread

LFLab wrote:
MapacheRaper wrote:
You are doing a fantastic work!

If you plan to sell PCBs when they are ready please put me in the list. This module is like a 2x version of Maths, more or less, isn´t?

flower


Maths also has 4 attenuaverters, voltage control over cycling, analog logic, and summing signals. But yeah, it is a start Smile


I have not used "Maths" what is the main functionality advantage over this?
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AlanP



Joined: Mar 11, 2014
Posts: 746
Location: New Zealand
Audio files: 41

PostPosted: Sat Aug 25, 2018 8:13 pm    Post subject: Reply with quote  Mark this post and the followings unread

Maths has offset and a mixer built into it, apart from the Peak Out, this does not. (I don't own Maths, so can't really speak to it.)

I'm waiting on some 3296P trimmers to arrive so I can check their fitment on my 0.3 boards (I used some RV36 trimmers, they don't fit quite right), and then I'll order ten sets of revised panel and PCBs.
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LFLab



Joined: Dec 17, 2009
Posts: 497
Location: Rosmalen, Netherlands

PostPosted: Tue Aug 28, 2018 3:32 am    Post subject: Reply with quote  Mark this post and the followings unread

Ayab wrote:
LFLab wrote:
MapacheRaper wrote:
You are doing a fantastic work!

If you plan to sell PCBs when they are ready please put me in the list. This module is like a 2x version of Maths, more or less, isn´t?

flower


Maths also has 4 attenuaverters, voltage control over cycling, analog logic, and summing signals. But yeah, it is a start Smile


I have not used "Maths" what is the main functionality advantage over this?


Rather than "just" create a voltage which goes up and then down (under voltage control), one can create much more complex modulation voltages (I do not have Maths myself, but there are youtube videos), by combining the outputs of individual slope generators or external control voltages.
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MapacheRaper



Joined: Feb 15, 2018
Posts: 166
Location: Spain

PostPosted: Tue Aug 28, 2018 6:19 am    Post subject: Reply with quote  Mark this post and the followings unread

There´s a virtual modular called VCV RACK. Befaco itself have programmed a software version of Rampage, which is quite similar to Maths, so you can play with the module in digital before purchasing it.

I didn´t got Maths untill I played the digital Rampage. Now Im looking to build one. (Rampage)
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AlanP



Joined: Mar 11, 2014
Posts: 746
Location: New Zealand
Audio files: 41

PostPosted: Sat Dec 01, 2018 6:43 pm    Post subject: Reply with quote  Mark this post and the followings unread

Ordered a set of new revision boards (v0.4). Fixed the insanely close vias on EngA PCB, and also added holes for the LEDs in the front panel Mad

Just uses usual components, and LM13x00 OTA, not the CA3080. The switches on it are Tayda solder-lug type.

I'll update again once I've verified this new revision.
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AlanP



Joined: Mar 11, 2014
Posts: 746
Location: New Zealand
Audio files: 41

PostPosted: Sat Dec 22, 2018 8:23 pm    Post subject: Reply with quote  Mark this post and the followings unread

http://alanp.info/builddocs/ddfg%200.4.pdf

Can anyone spot any problems with the build doc?
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MapacheRaper



Joined: Feb 15, 2018
Posts: 166
Location: Spain

PostPosted: Sun Dec 23, 2018 7:03 am    Post subject: Reply with quote  Mark this post and the followings unread

I read it on the phone and seemed all correct and tasty Wink
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AlanP



Joined: Mar 11, 2014
Posts: 746
Location: New Zealand
Audio files: 41

PostPosted: Sat Jan 05, 2019 12:35 pm    Post subject: Reply with quote  Mark this post and the followings unread

http://electro-music.com/forum/topic-70679.html
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Ayab



Joined: Oct 27, 2015
Posts: 180
Location: London, UK

PostPosted: Sat Jan 05, 2019 2:46 pm    Post subject: Reply with quote  Mark this post and the followings unread

AlanP wrote:
http://alanp.info/builddocs/ddfg%200.4.pdf

Can anyone spot any problems with the build doc?


Hi Alanp

Read through doc's twice: Excellent, concise and easily understood. You have obviously very carefully written the doc's they are a perfect walk through of the build so that problems can be avoided - imho they are really good.

Please confirm me as a customer Very Happy
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Ayab



Joined: Oct 27, 2015
Posts: 180
Location: London, UK

PostPosted: Fri Mar 01, 2019 8:03 am    Post subject: Reply with quote  Mark this post and the followings unread

Just received a pcb and panel set from Alanp - arrived in about a week from NZ.

Very happy with the quality of the aluminium panel and the pcb's.

Going to be a pretty crowded panel but should be easy to get used to as it is duplicates of the same functions.

Razz
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