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 Post subject: New project
PostPosted: Sun Jan 06, 2019 3:38 pm 
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Joined: Mon Mar 26, 2018 12:42 pm
Posts: 183
This one is going to be a real challenge but I can't wait to hear it once it is all together.

Blueshift from Aion Electronics - Dimension C Clone

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 Post subject: Re: New project
PostPosted: Mon Jan 07, 2019 9:05 pm 
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Yessss i have my eye on that. Please keep us up on how it comes out!


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 Post subject: Re: New project
PostPosted: Wed Jan 09, 2019 9:22 pm 
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Latest progress, all the MLCC caps and film caps installed. You can set jumpers on the optocoupler to change the bypass from stock to a minimal bypass. I am going for the minimal.

The two boards connect via pin headers, which I have yet to add.

There are two 100k trimpots on the back to bias the circuit. From memory both test points should be around 3.4v. It is recommended to bias using a oscilloscope and signal generator but I don't have one so I will have to use my DMM and ear.ImageImage

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 Post subject: Re: New project
PostPosted: Wed Jan 09, 2019 9:24 pm 
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I am going to use discarded resistor leads for jumpers then hopefully have enough room to put a six pin socket on top for the optocoupler.

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 Post subject: Re: New project
PostPosted: Thu Jan 10, 2019 8:47 pm 
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Electro caps and ICs installed.

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 Post subject: Re: New project
PostPosted: Thu Jan 10, 2019 9:17 pm 
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Test fitting of two PCBs

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 Post subject: Re: New project
PostPosted: Thu Jan 10, 2019 9:18 pm 
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Posts: 183
Enclosure ordered from Pedal Parts Plus

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 Post subject: Re: New project
PostPosted: Thu Jan 10, 2019 9:26 pm 
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Joined: Mon Mar 26, 2018 12:42 pm
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Waiting for the enclosure

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 Post subject: Re: New project
PostPosted: Thu Jan 10, 2019 10:22 pm 
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Joined: Tue Jan 02, 2007 1:24 pm
Posts: 11907
Location: Albany, NY
Coming along great!

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“My favorite programming language is SOLDER” - Bob Pease (RIP)

My Website * My Musical Gear * My DIY Pedals: Pg.1 - Pg.2


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 Post subject: Re: New project
PostPosted: Fri Jan 11, 2019 6:54 am 
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Joined: Tue Feb 09, 2010 4:45 pm
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Location: Rochester, NY
84 resistors
12 ICs
10 transistors
65 caps

:shock:

Looking good so far! Good luck.

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 Post subject: Re: New project
PostPosted: Fri Jan 11, 2019 1:26 pm 
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sjaustin wrote:
84 resistors
12 ICs
10 transistors
65 caps

:shock:

Looking good so far! Good luck.


Yeah this is a definite case of rocking it before boxing it. It all goes well I will try to knock out the L5 Preamp next.


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 Post subject: Re: New project
PostPosted: Sat Jan 12, 2019 4:10 pm 
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Posts: 183
Maybe a stupid question, but the LED is not coming on so I measured the voltage on the positive pad and it is 9.1v. However the CLR is showing 9.1v across both leads. I am guessing it could be a cold solder joint.

The voltages on the ICs seem good so far. Image

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 Post subject: Re: New project
PostPosted: Mon Jan 14, 2019 10:08 am 
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Posts: 183
Here is the schematic of the power LED indicator, power goes in at 9 volts across the 3k9 resistor which should step down the voltage I would think. However when I measure across the resistor I get 9.1 on both sides. Also, the positive LED pad is showing 9.1 volts.

I also see from the schematic that this is connected to the H11F1 optocoupler, and that it being activated would cause the LED to go on and off. Since this circuit is not true bypass, the optocoupler is used to turn the effect on and off.

I am not sure though why the voltage passing through the 3k9 resistor would not be changed at all, the resistance of the resistor is correct.


Attachments:
r95 voltage.jpg
r95 voltage.jpg [ 185.79 KiB | Viewed 656 times ]
Blueshift Schematic.png
Blueshift Schematic.png [ 16.12 KiB | Viewed 656 times ]
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 Post subject: Re: New project
PostPosted: Mon Jan 14, 2019 7:51 pm 
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Posts: 183
Apparently the h11f1 was bad, I put another in and it fired up.

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 Post subject: Re: New project
PostPosted: Tue Jan 15, 2019 6:47 pm 
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Posts: 76
How's it sound? Any clips?


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 Post subject: Re: New project
PostPosted: Tue Jan 15, 2019 8:01 pm 
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Finished build just need to dial in the settings of the BBDs.ImageImage

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 Post subject: Re: New project
PostPosted: Tue Jan 15, 2019 8:37 pm 
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Audio clip really rough lol

https://soundcloud.com/chongmagic/dimension-c


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 Post subject: Re: New project
PostPosted: Wed Jan 16, 2019 9:04 am 
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Joined: Sat Mar 11, 2006 12:49 am
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Location: New Yawk, NY
Awesomely executed, outstanding graphics, sounds as it should, well done. I'm just not a fan of BOSS Chorus. But I am a fan of great builds. :wink:

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 Post subject: Re: New project
PostPosted: Wed Jan 16, 2019 10:36 am 
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Nah sounds great. The first sound is phaser-y, the second has a real pronounced detune, and the third is what i think of when i think of this pedal. Gonna have to put one together eventually.


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 Post subject: Re: New project
PostPosted: Wed Jan 16, 2019 10:59 am 
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Location: Albany, NY
Looks FABULOUS!! Sounds pretty fine, too!

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My Website * My Musical Gear * My DIY Pedals: Pg.1 - Pg.2


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