/

 

 

Edited November 11, 201510 yr by JoaMat

while that would work for the unregulated input, for the output, its a bunch more work

so I will do the layout with O+,I+ shorted and O-I- shorted

 

all files updated, please check that I hooked everything up to the right place.

Edited July 12, 201510 yr by kevin gilmore

Reference is a good rule.

Agree,if it doesn't tell from the pic.

 

As far as I can tell from the reference JoaMat has posted the "Short if snap-in" is for people not using the 4pins Mundorf.

 

@Kevin: why use the Mundorf at the output? I can understand adding the option for the unregulated input ...

 /

Edited November 11, 201510 yr by JoaMat

feel free to stuff whatever you want into whichever hole you desire

 

(paging steve)

 

will have to order a couple of parts from Canada to make sure, unless

someone knows of a usa distributor.

Edited July 12, 201510 yr by kevin gilmore

all board files should be fixed, please check

Edited July 12, 201510 yr by kevin gilmore

I just noticed that the 787k resistor on the bias section of the fat board has been relabeled to 806k. On my KGSSHV build, I used a high voltage resistor for that spot. Mouser doesn't sell any 806k resistors with voltage ratings above 500V. Is a 500V resistor ok?

also relevant is, how accurate does that value need to be

I noticed another discrepancy on the silkscreen of the fat psus. On one current source there is a 4.7k resistor and on the other it is marked 4.5k. 

 

Furthermore the lead pitch of the 5pf/1kv disc caps in the fat psus should be increased to 6.4mm (same as in the amp boards). 

Edited July 12, 201510 yr by insanity

fixed the 4.7k resistor and the size of the 5pf caps

 

the accuracy of the resistor is not critical, I picked the standard

value.

This GB is officially closed as of 7/12/2015. 

 

Due to the changes Kevin made to the PS boards today, it'll take a few more days for these boards to be checked before I officially request quotes from the fab houses. I hope to have information on the cost of the various boards to share in a week or so. I will post an image of the spreadsheet here for all to review.

Edited July 13, 201510 yr by mwl168

feel free to stuff whatever you want into whichever hole you desire

 

(paging steve)

 

will have to order a couple of parts from Canada to make sure, unless

someone knows of a usa distributor.

 

Soniccraft carries the Mundorf HV+ caps: http://www.soniccraft.com/index.php/mundorf-mlytic-hv-c-23_318_362?osCsid=20df84e13rd2696naqengmbio1 

 

Not sure if there are other US distributors.

This maybe?

 

http://www.diyaudio.com/forums/group-buys/167414-reference-tda1541a-dac-i2s-bus-architecture-67.html

 

Reference is a good rule.

 

Sorry for made uncomfortable. I only have trimmed pic as I posted.

 

Added links in post. Thank you!

Attached spreadsheet of final order entries and total board count in the first post. 

 

For the single PS boards, quantity of 2 indicates the participant will receive 1 left and 1 right boards (or 1 plus and 1 minus for the LV). 

With the new development of the KGSSHV Carbon V5 board, I like to propose that the GB switch to use the V5 board and obsolete the V2 and V3 boards. V5 board basically allows the builder to choose between the original or new servo using the same board. For more details please read Kevin's posting #4970 and subsequent discussions over at the KGSSHV main thread. 

 

This will effectively drive down the amp board cost for both the V2 and V3 boards but definitely more so for the V2 boards.

 

No action is needed from you if you agree with this proposal - I will switch your order to the V5 board. Please respond to this thread if you prefer to stay with either the V2 or V3 board.

 

I will be posting the details of the quotes I obtained for the various boards soon. It's been a busy weekend for me and I need to make sure my calculation is correct.  

I am all for version 5. Thanks!

I've asked for a quote for 400 of these http://mundorf.com/en/?category=hifi&menu=caps_power&content=mlytic_hv_4pin

 

470uF will be 24.20€/pcs (400pcs order)

580uF was 26.90€/pcs (400pcs order)

680uF will be 28.20€/pcs (400pcs order)

I have put in a column in the GB spreadsheet for this purpose.

Edited July 20, 201510 yr by sorenb

Is that for 680uF or 470uF?

Is that for 680uF or 470uF?

Actually 580uF ...mixed up my request with the Kemet value  ...so I got a price on a 'special' value ..have asked for a price on both 470uF and 680uF ...I'll post as soon as I get the quote.

How many caps needed per amp, four?

How many caps needed per amp, four?

The Golden Ref HV PSU needs four caps, if you're building the HV900 it needs double 

 

Update the post:

470uF will be 24.20€/pcs (400pcs order)

580uF was 26.90€/pcs (400pcs order)

680uF will be 28.20€/pcs (400pcs order)

Edited July 20, 201510 yr by sorenb

I'm assuming only one value will be ordered then? Either way I'm in for at least 20.

Yep, change my version 2 boards to version 5 boards.

I also think version5 boards are the way to go.

Spreadsheet updated with column for Carbon amp v5. Please make your changes there.