BUILD THREAD - A New Take on the Classic Pass Labs D1 with an ESS Dac

[merlin el mago]

Each day I discover anything new.....

[opc]

Hi Guys,

I drew up a quick model of what my plans are for the DAC, so everyone can get an idea of where I'm going with mine.

For reference, the bottom plate is 0.5" thick, the whole DAC is about 12.5"wide by 12.25" deep and 3" high

I'm going to use Aavid 65535 extrusions cut to 3" lengths for the sides.

The 1" by 1" bars will transfer heat from the bottom plate to the sinks, and the whole thing should run pretty cool.

The .zip attachment is the Google Sketchup file.

Cheers,
Owen

[qusp]

still waiting on quotes and delivery times for the conrad sinks, hoping they are not already winding down for Xmas break

[qusp]

here is SOME of the parts that are here, i'm running out of room. the last ones are just posted as a matter of interest, they are the SMD Zfoils i'm using in another project, cute hey??

[merlin el mago]

I have 4 monsters toroidal Tx 45V 80VA can I use it?

[qusp]

I wouldnt, thats like 4 times larger than it should be. it'll work, but wouldnt be my first choice

[merlin el mago]

I ask because I have on hand without use so like good diyer before to buy news tx can use these, anyway thanks for the answer.

P.S. Hey nice photos, do you have four Vishay 400R for me?

[merlin el mago]

Owen,

What are these small SMD parts?

[qusp]

protection diodes for the input (Z1-8). the little tipis he was talking about and you can see in my pics. no extra Zfoils sorry mate

totally understand about wanting to use what youi have already, especially for things like transformers where big shipping fees are often involved.

guys I have a bit of bad news, heard back from Conrad, the pricing turned out OK considering there is 16 holes that need tapping in each sink, although I will need to get a bit more from you guys for the tapping, to me its definitely worth the price to get them tapped professionally in exactly the right places, but the problem is they cannot deliver until the 2nd week of Jan because they are going on holidays

this will not really cause much delay, as with this time of year and family commitments it would be a miracle if I was finished all the matching sooner than 3-4 weeks (should be pretty good timing actually), i'm praying they can deliver my matching rig sink straight away, they should be able to as it should be in stock and needs nothing done (2 lots of shipping is very annoying though) without it I will have to buy something for that somewhere else.

they are being tapped for M3 metric hardware, so if you cannot get this locally and would like me to get it for you let me know.

Template cost - $95 (good for about 30 sinks)
Setup fee - $25
Drilling/tap - $8 ea sink
Heatsink - $17 ea sink

So, for the 5 h/sinks, it comes out to be $95 + $25 + (5 x 8) + (5 x 17) = $235, or $47 ea.

[merlin el mago]

Thanks qusp, are they necessary to fit?