[headchange4u]

Reference pic of a Millet Hybrid Diamond Buffer (dDB) PCB:

[size=medium]DIYforums.org Millet Hybrid Homepage[/size]
Group Buy Thread

dDB Contruction Overview (contains DIYforums.org and Headwize dDB related threads)
Desgn
Parts List
Assembly Instructions and Bias Adjustment
FAQ

I just got my dDB in from Nate today and I though I would start a construction thread for Head-Fi members. These buffers do have some SMD solder work that has to be performed, so it's probably not the best project if it's the first time you have picked up a soldering iron.

Maybe someone could post a pic of a populated dDB PCB for reference?

Big thanks to Nate for organizing the group buy and a big thanks to all of those involved in the design of the dDB and the Millet.

 

[[AK]Zip]

Here is a picture of a populated board for reference.

-Alex-

 

[headchange4u]

Thanks for the pic Alex.

I notice you have the caps that are mounted near the dDB on very long leads. Is there a problem with the clearance of the caps in that area?

Anybody have a pic of the bottom of a populated PCB so I can see the pins for mounting?

 

[jerb]

the caps have long leads because of space requirements with the Buffer. if you look closely at his board (or your own) you should see a white rectangle around the buffer area, if anything crosses that the buffer will not fit. had AK mounted the capacitors flush on the board they would have crossed over this line and he wouldnt have been able to insert the buffer.

on a side note, AK would you please post a close up of your SMD soldering.

wow AK that was an incredible response time! thanks!

 

[[AK]Zip]

Quote:

Originally Posted by headchange4u Thanks for the pic Alex. I notice you have the caps that are mounted near the dDB on very long leads. Is there a problem with the clearance of the caps in that area? Anybody have a pic of the bottom of a populated PCB so I can see the pins for mounting?

I have way oversized caps there so yes they don't fit there.

 

[[AK]Zip]

Quote:

Originally Posted by jerb the caps have long leads because of space requirements with the Buffer. if you look closely at his board (or your own) you should see a white rectangle around the buffer area, if anything crosses that the buffer will not fit. had AK mounted the capacitors flush on the board they would have crossed over this line and he wouldnt have been able to insert the buffer. on a side note, AK would you please post a close up of your SMD soldering.

Yea I will get a pic once my friend comes over. My camera can't do macro mode.

-Alex-

 

[SHLim]

Appreciate if someone can post a photo of the under side of the DB with the pin soldered.

Sam

 

[mono]

Quote:

Originally Posted by [AK]Zip I have way oversized caps there so yes they don't fit there.

I wonder if taking a half-round file to the buffer board would allow the caps to sit flush again. It looks like at least 1mm or 2 could be removed. Are they 12.5mm caps on 10mm cap allowance?

 

[[AK]Zip]

Quote:

Originally Posted by SHLim Appreciate if someone can post a photo of the under side of the DB with the pin soldered. Sam

I will get a picture for you here in a little bit.

Quote:

Originally Posted by mono I wonder if taking a half-round file to the buffer board would allow the caps to sit flush again. It looks like at least 1mm or 2 could be removed. Are they 12.5mm caps on 10mm cap allowance?

Whatever size the white circle is. That is the max cap size you can fit in there sitting strait up and down.

-Alex-

 

[[AK]Zip]

Here you go SHLim:

-Alex-

 

[SHLim]

Quote:

Originally Posted by [AK]Zip Here you go SHLim: -Alex-

It make much more sense now.

Thanks,
Sam

 

[rreynol]

And if you use the big mutha' 2w resistors.

 

[NeilR]

A few images of my DB....

More images here (the DBs are on the second page).

 

[blueworm]

 

[nikongod]

sweet thread, i cant wait for my parts to get here.