A New Take on the Classic Pass Labs D1 with an ESS Dac - Page 114 - diyAudio
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Old 18th September 2012, 06:51 AM   #1131
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If Owen is too busy on other works, It will be great with his agreement, other member to offer the PCB GB.
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Old 18th September 2012, 07:02 AM   #1132
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Quote:
Originally Posted by bigpandahk View Post
If Owen is too busy on other works, It will be great with his agreement, other member to offer the PCB GB.
This option was already discussed and semi agreed and Owen hasn't had time to organise that yet, it will happen when its ready is the impression I get

From what I've heard of qusp's version one I believe it is well worth the wait!
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Old 23rd September 2012, 09:17 PM   #1133
opc is offline opc  Canada
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Hi Guys,

Sorry for my long absence on this thread, things have been busy over the summer and this fell off my radar for the past few months.

I revised the PCB after getting feedback from bigpandahk but opted not to add the digital connector to the board for the BIII as it interferes with the existing connector for the BII.

Users with the BIII can easily solder a pair of wires for the digital inputs if they choose to use them, but I'm guessing most will not.

I've generated the gerbers for this board and sent it off to the PCB fab people this afternoon. They will be reviewing the gerbers tomorrow and fabrication will take one week, so I should have boards in hand by mid week next week.

I have ordered a total of 70 boards which means everyone on the list at this point will be getting a board, and there will be a few extra if there are stragglers.

The final board price will be $25 each as my board shop has upped their prices a little since last time.

Shipping will vary depending on where people are, but I will ask for a volunteer from Europe, one from the USA, and one from Asia to ship in their local areas. I will ship all boards destined for Canada.

I will cover the cost of shipping the appropriate number of boards to each volunteer, and they in turn will handle shipping for everyone in their area. That means each volunteer will need to calculate shipping costs, collect shipping totals via Paypal, and ship out the boards to people in their area.

In exchange for this assistance, each volunteer will get their board for free, and they will get to share in the joy of making this GB possible as I definitely don't have the bandwidth to pack and ship 70 parcels on my own.

Please let me know on this thread if you would like to volunteer. It is imperative that you understand the great deal of work it will be to do this, and I reserve the right to be choosy with who I pick. Anyone who has run a GB in the past is a shoe in if they are interested.

Again, sorry for the delay on this whole project, and hopefully people have hung in there long enough to still be around when these show up!

Cheers,
Owen
Attached Files
File Type: pdf OPC D1 V1 FINAL 2.pdf (115.0 KB, 144 views)
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Old 23rd September 2012, 09:34 PM   #1134
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qusp previously volunteered, I know he has been busy lately with family stuff but I am just around the corner from him and I am happy to take over for Asian area stuff from him at any point if he doesn't have time to commit to thIs.
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Old 23rd September 2012, 09:35 PM   #1135
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Happy to volunteer for US/California distribution. I've done a number of group buys (headfi) - but this would be my first with diyaudio.
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Old 23rd September 2012, 10:06 PM   #1136
qusp is offline qusp  Australia
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right, so whos doing the fets? its not me, I gave up telling people there were no more available after 10 times. I have a limited number and they are all spoken for long ago; at least 3-4 times that amount of people again requested them after I said no more …

So opc if you want to send me Asia/Australasia PCBs, Chris and I will make sure it gets done. but only the fets I have done and PCBs, no kits, the parts should really be done centrally anyway, as a separate GB; with this number of people the pricing should be pretty good.

for this number of people its going to be a pretty mammoth effort to VDS and gM match fets at operating point, good luck =)

oh I could do some keratherm red isolation pad sets if anyone is interested

Last edited by qusp; 23rd September 2012 at 10:10 PM.
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Old 23rd September 2012, 10:09 PM   #1137
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Glad to hear you're still up for sourcing/matching the FET's qusp! Couldn't resist :-)
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Old 23rd September 2012, 10:58 PM   #1138
opc is offline opc  Canada
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Hi Guys,

Alright, so we've got two volunteers out of a possible three:

USA - MisterRogers - Has previously done a GB and knows how to poke fun at qusp! That's two pluses in my books.

Asia / Australia - qusp - No worries here either, so that's confirmed.

Europe - ?

As for the mosfets, I'll mull it over, as I might be able to dedicated some time to this. I already have the set up to do it, so I'll see if I can dedicated a few extra days to matching fets. They won't be cheap, however, since it's at least an hour per set in overall time plus the cost of the parts. My count is 37 quads of fets which means I would need to order a rail of 250 pcs to get enough good matches.

Cheers,
Owen
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Old 24th September 2012, 01:06 AM   #1139
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Quote:
Originally Posted by qusp View Post
right, so whos doing the fets? its not me, I gave up telling people there were no more available after 10 times. I have a limited number and they are all spoken for long ago; at least 3-4 times that amount of people again requested them after I said no more

So opc if you want to send me Asia/Australasia PCBs, Chris and I will make sure it gets done. but only the fets I have done and PCBs, no kits, the parts should really be done centrally anyway, as a separate GB; with this number of people the pricing should be pretty good.

for this number of people its going to be a pretty mammoth effort to VDS and gM match fets at operating point, good luck =)

oh I could do some keratherm red isolation pad sets if anyone is interested
Hi Qusp

Please count me for two sets of keratherm red isolation pad.

Thanks
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Old 24th September 2012, 01:13 AM   #1140
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Quote:
Originally Posted by qusp View Post
oh I could do some keratherm red isolation pad sets if anyone is interested
Don't go double selling that keratherm mate, I still need my bits out of that sheet! :P


I don't have time to organise matching of any more FETs at this stage either.
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