S800 Support Thread

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Just finishing my 800's and found out that I soldered C18, 19 and 20 in the WRONG positions!
Pay attention to that, it took me a day to find out!
Couldn't get to work..........
It's nice to have the option for different pitches but it got me fooled :mad:


Willem

 
Hi,

Two questions for the green psu for the s800:

Will this heatsink be big enough for running 8 channels (one for each regulator)?: http://www.musikding.de/Nuts-washers-screws/Heatsinks/Heatsink-19mm-22K-W::2108.html

And will this do the job as the 100nF caps on the green psu?: http://www.musikding.de/Passive-parts/Capacitors/Film-Capacitors/Arcotronics-MKT/MKT-0-1uF::521.html

I think the BOM links to polarized electrolytics, but the PCB does not show any ploarization, so I thought the MKTs might work? ???
 
Sorry for asking all these noob questions.. but are the caps in Collins kit marked with u1k = 100nF?
 
bump on the PCBs.  I would be interested in supporting the community by purchasing PCBs :)

(read:  I would  screw them up trying to make them myself)
 
Hi

Finally finishing this project off, it also happens to be my first. I just have one quick question.

Is it ok to use the on-on mini toggle switch that came with the audio maintenance for the power switch?

I read elsewhere on another site that mini toggle switches should be avoided for power switch situations.

Cheers!
Simon
 
Is it ok to use the on-on mini toggle switch that came with the audio maintenance for the power switch?

Most toggle switches have a voltage and current rating printed or engraved into the body of the switch.

Have a close look and see if there is anything there.

Peter
 
Hi everyone.

My S800 boards are on the way, parts kit from AML is on the way.

Can someone recommend a power transformer? (230V primary) Brand names and places to order? I've had some bad luck with locally supplied rubbish recently.

I did read elsewhere that I can use Mnats power-supply board with the S800. (I've got one already) Has anyone had any luck with this?
If not can anyone give me an idea of where i would find a schematic, or even possibly a power-supply pcb that would be suitable?

Thanks!

Mnats Power-supply board that I have
psu_2009_bare_blue_small.jpg


I did also find a pcb layout for for the Green Pre PSU (I just want to confirm that this is a common option)

Which would be a better option if the Mnats board can be used?
 
PM me your phone number.

From RS :
http://za.rs-online.com/web/c/power-supplies-transformers/transformers/toroidal-transformers/?sort-by=default&sort-order=default&applied-dimensions=4294499937&lastAttributeSelectedBlock=4294511534

30Va or 50VA should be fine depending on how many channels. Bit more expensive but Nuvotem make good transformers.

Peter
 
peterc said:
PM me your phone number.

From RS :
http://za.rs-online.com/web/c/power-supplies-transformers/transformers/toroidal-transformers/?sort-by=default&sort-order=default&applied-dimensions=4294499937&lastAttributeSelectedBlock=4294511534

30Va or 50VA should be fine depending on how many channels. Bit more expensive but Nuvotem make good transformers.

Peter

Peterc, thank you so much. Really helpful. I will PM you this evening, Im a bit hectic today.

Thanks once again.
 
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