[drteming]

Initially i was thinking of getting the v5 and make a hole through the case

The complexity of the drilling measurement plus the reverse mounting of d30 made me ditch my plan

Overall I have to say this is a very nice op amps

I'm gonna check if there's room to lay a v5 on its side. Just gotta solder some wires to a loose socket and plug the other ends into the socket on the board.

[edit]Look like Burson sells socket extensions, but I'm not paying $20 for something I can whip up in 15 minutes.[/edit]

 

[jekjek]

I'm gonna check if there's room to lay a v5 on its side. Just gotta solder some wires to a loose socket and plug the other ends into the socket on the board.

[edit]Look like Burson sells socket extensions, but I'm not paying $20 for something I can whip up in 15 minutes.[/edit]

How is the real estate in the d30 case?
Wnough space for the v5 with extension cable?

 

[drteming]

The v5 is 14.5 mm x 12.4 mm.  There's 14.35 mm of space in the D30, so it'll fit just fine with an extension.  Dang it, I'm totally happy with the OPA2107 I got in the D30 now, but knowing the v5 fits...
 
Nope, gotta have self control.  I'm waiting for the Monoprice M1060.

 

[midlifeaudio]

Mine was very nice for one day. Now it seems like I lost the right channel. I got it from Massdrop and after being a loyal customer, I read in their policy "no returns or exchanges". I truly hope this doesn't apply to defective units. I apologize if this is a known issue, no I did not read the entire thread!

 

[drteming]

Mine was very nice for one day. Now it seems like I lost the right channel. I got it from Massdrop and after being a loyal customer, I read in their policy "no returns or exchanges". I truly hope this doesn't apply to defective units. I apologize if this is a known issue, no I did not read the entire thread!

Nothing reported about the D30 pooping out, but this thread is still small. I wonder if it may be a bad relay. It's an easy swap out if you have the equipment.

 

[midlifeaudio]

How would you go about testing it? I guess if I have to ask..... I don't have a voltage meter. I do know a TV repair place, maybe they can look at it without charging more than what is worth...

 

[drteming]

How would you go about testing it? I guess if I have to ask..... I don't have a voltage meter. I do know a TV repair place, maybe they can look at it without charging more than what is worth...

I don't have a picture of the underside of the PCB, but find the pins of the output relay and test to see if there's a signal at the input. You should easily find the pin layout for the relay with a search. Don't need a multimeter. Just short the input pin to the output pin and see if you hear any music. Make sure you got your pins correct, because if you short the voltage in to the output pin, you can damage your amp/headphones/speakers.

 

[erich6]

 

[midlifeaudio]

24 hours and I have not heard from Massdrop support team regarding the left channel. Way to go Massdrop, you are next on my chopping block!

 

[2014F30]

Would love to hear about the linear power supply. Could you please tell us what parts you used? Thanks!

 

[drteming]

  Would love to hear about the linear power supply. Could you please tell us what parts you used? Thanks!

 
The transformer is the Antek 25VA 20V (AN-0220).  The DC conver/regulator is a generic part off eBay based on Linear Technology's LT1084CP regulator.  On eBay, it's listed as LT1083CP.  Basically 5A for the 1084 and 7.5A for the 1083.  Not a big deal in this case.  I ditched the caps that came with the kit and used my own.  For the case, just search 0905 aluminum enclosure on eBay.  It didn't come with a fuse, so I got the fuse holder at the local Radio Shack.

 

[2014F30]

Thank you very much! This will be my first linear power supply build. I just bought these off ebay:
 
High-End 30W / 30VA R-Core Transformer IN 115V /115V / OUT 9V+ 9V
http://www.ebay.com/itm/182139298052?_trksid=p2060353.m2749.l2649
 
Assembled board LT1083CP high-power linear Adjustable voltage regulated DC hifi
http://www.ebay.com/itm/252055509988?_trksid=p2060353.m2749.l2649

0905 Full Aluminum Enclosure/Mini AMP Case/ Preamp Box/ PSU Chassis 158X92X47mm
http://www.ebay.com/itm/271969851778?_trksid=p2060353.m2749.l2649
 
Very excited to get started! Thank you again for sharing.
 
Quick question - did you connect the LED directly to the DC output? Does that affect anything, audio-wise?

 

[drteming]

 
Quick question - did you connect the LED directly to the DC output? Does that affect anything, audio-wise?

 
Yep, the LED comes out of the DC output.  There's a 10K resistor in line.  The draw is minuscule.  Its effect may be measurable in a professional lab, but not with my equipment or my ears.  If you are making the PSU for the D30, make sure you wire up the secondaries in series.  I'm sure you know that already.

 

[2014F30]

Thanks for the info, it's MUCH appreciated. I'm building a 9v linear power supply for a Wyred4Sound uDac, just for fun. Not sure if it will actually improve the sound...

 

[drteming]

Thanks for the info, it's MUCH appreciated. I'm building a 9v linear power supply for a Wyred4Sound uDac, just for fun. Not sure if it will actually improve the sound...

Yikes, you're gonna need a few extra volts coming out of the transformer to get 9V out from the DC converter/regulator. The LT1083/4 needs at least a 1 V dropout to operate stably.