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Old 3rd November 2011, 08:09 PM   #561
qusp is offline qusp  Australia
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looks good, man those are some serious output PTH!!! what are you looking to solder the output wiring with an arc welder? what awg is that? 1|0?
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Old 3rd November 2011, 08:10 PM   #562
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Old 4th November 2011, 04:18 AM   #563
EUVL is offline EUVL  Europe
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> what awg is that? 1|0?

I specified 4mm holes.

For the middle hole, I recommend using a M4 brass standoff plus brass screws and nuts to connect the main PCB, daughter PCB and Gnd wiring to the regulators and input XLR.

For the speaker outputs, you may use the same, or consider using 4mm copper tubes as output connectors.

As to soldering, according to my experience, there is no problem if you have a hot iron say 100W, even using lead free solder. Preheating the PCB in an oven to 80C would also help, but not essential.


Patrick
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Old 4th November 2011, 03:44 PM   #564
qusp is offline qusp  Australia
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aaah yes ok that makes more sense. i wonder if anyone makes copper standoffs? brass hmm i'm silly like that; i'd probably just use it like that till tweaked and replace with copper soldered. it wasn't so much the gauge that worried me, but the combination of gauge and being the centre of a pretty chunky ground plane and output ...ermm..trenches (trace just doesn't quite say it) that can suck the heat out of the iron as quick as you can give it. preheating the pcb would help.

looking good though; it takes 'low impedance ground node' to a whole other level

Last edited by qusp; 4th November 2011 at 03:46 PM.
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Old 4th November 2011, 05:43 PM   #565
EUVL is offline EUVL  Europe
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I am sure if you pay a visit to your local jewel maker, he'd be most happy to custom make a few for you in 999999 pure silver.




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Old 4th November 2011, 05:47 PM   #566
qusp is offline qusp  Australia
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nope, just copper for me if anything. although as you say it would probably be easier to find someone to make one from silver. I suppose i could use one of the online short run CNC fab sites popping up around the place.

also perhaps the amphenol buss headers would fit. then i could get SPC 70-140A capable connection radsok headers. i actually think they will fit. i'll dig up a link

something similar to this power block connector. but pretty sure there is one without the surrounding pins that you press fit.

Click the image to open in full size.

though thats starting to get a bit carried away =)

Last edited by qusp; 4th November 2011 at 05:58 PM.
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Old 4th November 2011, 06:11 PM   #567
Studley is offline Studley  United Kingdom
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Quote:
Originally Posted by EUVL View Post
> what awg is that? 1|0?

I specified 4mm holes.



For the speaker outputs, you may use the same, or consider using 4mm copper tubes as output connectors.




Patrick
Patrick
Have I misunderstood? Do you mean use Copernicus pipe as the actual connector that you attach your speaker cables to? If so, how do you attach the cables to make a good connection?
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Old 4th November 2011, 06:14 PM   #568
Studley is offline Studley  United Kingdom
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Ha! Bl**dy predictive text, should say copper of course
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Old 4th November 2011, 06:33 PM   #569
qusp is offline qusp  Australia
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haha copernicus, indeed (stupid thing changed it to heat? wtf?) the predictive text here is actually getting on my nerves lately.

no what he means is copper tube to connect from board to chassis mounted connectors of your choice and i believe at least the GB have speakon and bayonet? speakon at least.


aayarrrrgghhhh so sick of having to go back and correct the stupid browser's 'corrections' its a forum engine thing isn't it? because its different with different forums and there is no way to change settings. we use so much jargon here that its incredibly frustrating

Last edited by qusp; 4th November 2011 at 06:38 PM.
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Old 4th November 2011, 06:35 PM   #570
Studley is offline Studley  United Kingdom
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Yes I suspected as much but was kinda hoping he had come up with a cheap cool way to replace terminals
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