A New Take on the Classic Pass Labs D1 with an ESS Dac - Page 85 - diyAudio
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Old 15th January 2012, 08:32 PM   #841
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ggetzoff is in for 1 pcb.

Thanks,

GG
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Old 17th January 2012, 01:40 AM   #842
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Location: Canada, Qc
I checked and the Buffalo 1 is ok. I'll take one. Thanks...

1. cersepn x 1
2. icewall x 2
3. pmchoong x 1
4. qusp x 1 this is tentative mate, but wanted to make sure my name was down
5. regal
6. randytsuch x 1
7. LK x1
8. greyrab x1
9. alexcount x1
10. adelias x1
11. Coolhead x1
12. Emphrygian x 1
13. tranhieu x 1
14. crazyfrog x 1
15. woresseo x 2
16. Pedefede x 1
17. Algar_emi x 1
18. ggetzoff x 1
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Old 17th January 2012, 02:12 AM   #843
syklab is online now syklab  Hong Kong
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Will it work with Buffalo III? Is there a place that I can buy all the components or is QUSP offering those parts in a package?

Thanks

1. cersepn x 1
2. icewall x 2
3. pmchoong x 1
4. qusp x 1 this is tentative mate, but wanted to make sure my name was down
5. regal
6. randytsuch x 1
7. LK x1
8. greyrab x1
9. alexcount x1
10. adelias x1
11. Coolhead x1
12. Emphrygian x 1
13. tranhieu x 1
14. crazyfrog x 1
15. woresseo x 2
16. Pedefede x 1
17. Algar_emi x 1
18. ggetzoff x 1
19. syklab x1 + fets

Last edited by syklab; 17th January 2012 at 02:22 AM.
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Old 18th January 2012, 02:14 AM   #844
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Does anyone have the latest D1 PCB silkscreen layout. It seems the pcb made doesn't fit the published pictures found in the middle of the post. Thanks...
SB
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Old 19th January 2012, 12:46 PM   #845
Magsy is offline Magsy  United Kingdom
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Location: Wales
I'll make it 20...

1. cersepn x 1
2. icewall x 2
3. pmchoong x 1
4. qusp x 1 this is tentative mate, but wanted to make sure my name was down
5. regal
6. randytsuch x 1
7. LK x1
8. greyrab x1
9. alexcount x1
10. adelias x1
11. Coolhead x1
12. Emphrygian x 1
13. tranhieu x 1
14. crazyfrog x 1
15. woresseo x 2
16. Pedefede x 1
17. Algar_emi x 1
18. ggetzoff x 1
19. syklab x1 + fets
20. Magsy x 1
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Old 19th January 2012, 12:52 PM   #846
opc is offline opc  Canada
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Location: Ottawa, Ontario, Canada
Hi Guys,

It looks like there is probably enough interest in this to start looking at another run of just boards. I'm going to be swamped with the existing GB's for the next little while, but expect to see some movement on this in the next two months or so.

Cheers,
Owen
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Old 24th January 2012, 09:04 PM   #847
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researching components in the meantime ...

How low should the thermal resistance for the heatsink be?
(I plan on mounting it like Qusp, to the buttom of the chassis)

Any matched Fets left?

peter
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Old 25th January 2012, 02:08 AM   #848
qusp is offline qusp  Australia
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i might be able to find some that are decent matches that are better than Nelsons guidelines still, but no more perfect matches and i wont be doing any more matching, at least thats how i feel now, last time was an epic effort that i do not wish to, or have time to do again i'm afraid.

the sink needs to be able to get rid of roughly 50W, while keeping case temp under ~65c
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Old 25th January 2012, 08:32 AM   #849
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Quote:
Originally Posted by qusp View Post
the sink needs to be able to get rid of roughly 50W, while keeping case temp under ~65c
Ok, so thats a thermal resistance of about 1 C/W .... But those values are measured under quite different positioning, than the pictures i've seen, with heatsink attached to the bottum, and fins pointing down.
Does anyone have the thermal resistance of the heatsinks you guys used?
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Old 25th January 2012, 08:41 AM   #850
qusp is offline qusp  Australia
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either way the heatsink still needs to get rid of the same amount of heat, doesnt matter the orientation, thats for you to work out with your build so the case gets rid of 50W without case temp going above about 60-62c max

its a customised Conrad MF20-151.5 @ 0.36C/W for 80c rise
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