BUILD THREAD - A New Take on the Classic Pass Labs D1 with an ESS Dac - Page 21 - diyAudio
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Old 4th May 2011, 08:03 PM   #201
qusp is offline qusp  Australia
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sorry only 1 extra is cut off. but thats ok, 0.01mv is enough for good measurements. there are a couple of rogues that seem a bit high from early on, that i might test again if i dont get any repeats. early in the piece i wasnt using the digital count down timer, just an egg timer and i found that if it was done too quick the gm was higher than it should be and settled fully after about 4 mins even though it appeared to have stopped after 3
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Old 4th May 2011, 08:12 PM   #202
opc is offline opc  Canada
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Hi qusp,

Hopefully you can find a few friends for that guy at 0.951S! Those look like some great results, and with that many devices you're looking at getting quite a few perfect pairs or quads.

Keep up the good work!

Cheers,
Owen
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Old 4th May 2011, 09:12 PM   #203
qusp is offline qusp  Australia
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Hey opc: hehe indeed, i'm also hoping those couple of really high measurements are legit and there is more. there is a bit of a trend there with a few larger ones, fingers crossed!! regardless it seems about as consistent as one would think and the expression seems pretty linear through the cct now i've got rid of the dc error, so i'm pretty happy with the final results so far.
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Old 7th May 2011, 07:38 PM   #204
qusp is offline qusp  Australia
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guys, i need to call for interest again to confirm numbers for the fets. please pm me or email to confirm. i have done 90 now and will stop at 140 so by wednesday latest. i will send emails to those addresses that i have at hand easily saved in the group folder, but i know there were many more than this. thanks
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Old 7th May 2011, 11:03 PM   #205
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Hi everybody,

what are the chances at this point to get a pcb? Are there any companies who might do singles, and if, would the drawing be available (Owen?)?

So if there's a pcb lying around somewhere, please let me know!

Thanks,
Abel
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Old 8th May 2011, 10:31 AM   #206
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... hope my name is still up there somewhere, Jeremy,,,,,
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... jh
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Old 9th May 2011, 06:07 PM   #207
qusp is offline qusp  Australia
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yes mate, emailed you last night i thought? will resend now
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Old 10th June 2011, 09:24 PM   #208
qusp is offline qusp  Australia
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hey hey, well i hear a few people's fets have arrived and more should be arriving every day. so where are the builders?

heres an old pic of my ackodac akd12p when it was mostly done, its been rearranged with a brand new usb board and some more suitable transformers will be here on monday.

but i'll post these pics just to get the ball rolling and to give a few ideas.

will post more during next week. at this point i still hadent figured where i was going to put the caps, was pretty crowded, thus moving to 2 box build and dual diff
Attached Images
File Type: jpg ackodac teflon so close yet so far 5.jpg (310.2 KB, 484 views)
File Type: jpg ackodac teflon so close 3.jpg (412.1 KB, 478 views)
File Type: jpg ackodac teflon so close yet so far 12.jpg (657.9 KB, 448 views)
File Type: jpg ackodac teflon so close.jpg (297.8 KB, 428 views)
File Type: jpg ackodac teflon so close yet so far.jpg (272.2 KB, 431 views)

Last edited by qusp; 10th June 2011 at 09:31 PM.
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Old 10th June 2011, 09:30 PM   #209
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Really looks nice !!!!!!!!!!!
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Old 10th June 2011, 09:31 PM   #210
Horio is offline Horio  United States
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I received my FET's just a couple of days ago. I'll probably start soldering everything together soon, but I need to figure out how I'm doing the heatsinking before I can get this thing running..

Where did you get that case qusp?
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