Search found 171 matches

by frd1996
Mon Aug 07, 2017 6:02 pm
Forum: Computer Audio
Topic: I2C addressing??
Replies: 3
Views: 734

Re: I2C addressing??

John, I am not an expert. If you use 7bit addressing then 1001100 address is packed as 1001100X, where X is R/W bit. According to this you address should be 0x98 or 0x99 depending whether you are reading or writing. More information about I2C addressing can be found here: https://www.totalphase.com/...
by frd1996
Sun Jul 30, 2017 8:51 am
Forum: General
Topic: DIY battery powered NAIM power supplies anyone ?
Replies: 22
Views: 1860

Re: DIY battery powered NAIM power supplies anyone ?

James, Here is just a small idea. If you have Naim Headline headphone amp that you mentioned in your first post, then it may not be that difficult to give it a try. As far as I can see the amp requires just a single 18V power rail and this would be quite easy to try. I am not saying that you need to...
by frd1996
Sat Jul 15, 2017 2:24 pm
Forum: General
Topic: DIY battery powered NAIM power supplies anyone ?
Replies: 22
Views: 1860

Re: DIY battery powered NAIM power supplies anyone ?

Maybe this is a bit off topic but here are some nice pictures of replacements for NAIM PSUs:
http://nodecorporation.co.uk/index.htm
by frd1996
Mon Jun 19, 2017 2:52 pm
Forum: Reviews
Topic: Lampizator Big7
Replies: 124
Views: 25078

Re: Lampizator Big7

With QTY of 20pcs the price drops to EUR 4 per pc. A EUR 100 just for the regs.

F
by frd1996
Mon Jun 19, 2017 10:02 am
Forum: Reviews
Topic: Lampizator Big7
Replies: 124
Views: 25078

Re: Lampizator Big7

Sligolad wrote: Sat Jun 17, 2017 1:46 pm In terms of paralleling these regulators could they be built in an array to give 1.3v out at 5 or 6 amps?
That should be doable. There is no guarantee that this will bring any improvement though :)

F
by frd1996
Fri Jun 16, 2017 7:51 pm
Forum: Reviews
Topic: Lampizator Big7
Replies: 124
Views: 25078

Re: Lampizator Big7

True - not cheap, but cheaper than Ebay. In terms of paralleling see page 26:

http://cds.linear.com/docs/en/datasheet/3045f.pdf
by frd1996
Fri Jun 16, 2017 2:34 pm
Forum: Reviews
Topic: Lampizator Big7
Replies: 124
Views: 25078

Re: Lampizator Big7

LT3045 can provide 500mA max. Personally I would not put more than 300-350mA on them. They can be used in parallel though. The require a very small output series resistance. Around 0.3 Ohm.

F
by frd1996
Fri Jun 16, 2017 12:07 pm
Forum: Reviews
Topic: Lampizator Big7
Replies: 124
Views: 25078

Re: Lampizator Big7

I will be making PCB for these regulators for myself. Will report when they are ready.

F
by frd1996
Tue May 09, 2017 9:56 am
Forum: Computer Audio
Topic: wtfplay project - it's official
Replies: 258
Views: 47842

Re: wtfplay project - it's official

Hi,

I am happy to let you know that the new release of wtfplay-live is now available. The list of changes and the link to the download directory can be found here:

http://wtfplay-project.org/rnotes.html

Please give it a try and let me know how it works for you.

Enjoy!
F
by frd1996
Tue Apr 25, 2017 9:12 am
Forum: General
Topic: It didn't explode....... YET (aka niges amp)
Replies: 758
Views: 52835

Re: It didn't explode....... YET (aka niges amp)

Nige, Pearse, That looks fantastic. Amazing job guys!

F