Building the SBT PSU

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Here are the prices from Toroidy.pl:
TS20VA PRI:230V SEC: 1x8V (or 2x8V)

Audio grade: 18,90 EUR / pc
Outer diameter: 63mm / 29mm

Standard with mounting kit: 13,50 EUR / pc
Outer diameter: 58mm / 28mm

Mounting kit adds ~5mm height.

Incase anyone is interested.. 🙂
 
Another sound quality report on the main system: powering the Bel Canto U link to a subbu v3 dac. Two stage push pull 6l6 monoblocks and altec a7's, all modded (don't ask).

I think I can hear that there are two ice cubes tinkling in the glass on Clifford Jordan's Live at Ethel's...
In short everything is more resolved. Thanks again.
 
Last boards have been sold today. Some missing shipments have been corrected and I only have a few left for my own use. Thanks for the GB, I hope you all will be satisfied with the results. It is a little bit disappointing only a few have given comments on quality. It is taking and giving IMO but the sun is shining so I won't loose the vibe 😉

New project in the works...
 
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Thanks Jean-Paul for a smooth group buy.
I had to source parts from a couple of different suppliers, but now I'm building.

But now it looks like my chassis is a tight fit - heat sink will probably slightly touch my chassis - will this be ok or...trouble ?

An externally hosted image should be here but it was not working when we last tested it.
 
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Hi the heatsink is connected to GND. To avoid problems I would insulate the regulator chip.

Thanks for the feedback Jean-Paul,

I did not have thermal paste but I had a thermal pad, so I guess that insulates the regulator chip from the heat sink. To be on the safe side I also placed a sheet of Nomex between the heatsink and chassi.

SBT PSU is up and running now, first impression is an increase in microdetails, and more depth in the music.


BR
Pilsern
 
Wont Work

I've obviosuly done something wrong but I'm not sure what it is, I'm hoping someone might be able to see something in the photo's.

I get 8V at the amp meter output but nothing at the 5V output.
 

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Yes 😉

BTW I see you solder first and cut excess lead wire off later. This is less good than cutting first and solder later. You put mechanical stress on joints which is not optimal for reliability. Makes sense when you think about it, costs nothing and makes stuff better. Make the switch !
 
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