Search found 8 matches

by wyan
Sat Sep 30, 2017 9:43 pm
Forum: Computer Audio
Topic: Soekris Dam Dac
Replies: 865
Views: 142331

Re: Soekris Dam Dac

randytsuch wrote: Sat Sep 30, 2017 3:43 pm Do not use a 373. Made a mistake :(
Need a 374. Or two 74s. But the 374 will be easier to use for this
No worries and thanks. I was getting the 374 as linked in previous posts. Cheers. :)
by wyan
Thu Sep 28, 2017 6:41 pm
Forum: Computer Audio
Topic: Soekris Dam Dac
Replies: 865
Views: 142331

Re: Soekris Dam Dac

Hi, for the potato flip-flops, where shall I connect the OE pin to? Other pins are straightforward. Thanks. Did you get the 373? OE is active low, so tie it to ground. This way, outputs are always active, which is what you want. If OE is high, outputs go high impedance, which basically means they d...
by wyan
Thu Sep 28, 2017 4:13 pm
Forum: Computer Audio
Topic: Soekris Dam Dac
Replies: 865
Views: 142331

Re: Soekris Dam Dac

randytsuch wrote: Thu Sep 28, 2017 3:55 pm In the US, ebay or here
http://www.batteryspace.com/A123-System ... 0-mAh.aspx

If you're in the EU, I think they are easier to find there.
Thanks. :)
by wyan
Thu Sep 28, 2017 4:12 pm
Forum: Computer Audio
Topic: Soekris Dam Dac
Replies: 865
Views: 142331

Re: Soekris Dam Dac

Hi, for the potato flip-flops, where shall I connect the OE pin to?

Other pins are straightforward. Thanks.
by wyan
Thu Sep 28, 2017 3:35 pm
Forum: Computer Audio
Topic: Soekris Dam Dac
Replies: 865
Views: 142331

Re: Soekris Dam Dac

I finally tried a "real" A123 26650 battery in my dac. I bought a few, replaced the one that powers the isolated section and my usb to i2s converter. Made a significant difference, better resolution, so going to buy more a123 batteries to use in the dac. The pair that powers the ladder sh...
by wyan
Sun Jun 18, 2017 8:47 am
Forum: Computer Audio
Topic: Another interesting r2r dac
Replies: 123
Views: 48607

Re: Another interesting r2r dac

Thanks, Rick and Nige.

A stand-alone R2R network and shift register might actually be welcomed. I suppose we could use off-board clock and implement a good output stage to try to get great sound quality, if the standalone R2R network is not flawed.
by wyan
Wed Jun 14, 2017 6:54 am
Forum: Computer Audio
Topic: Another interesting r2r dac
Replies: 123
Views: 48607

Re: Another interesting r2r dac

Thanks, Rick. It interests me since its power supply is easier to implement. 3.3V and 60ma for two boards in push-pull mode. Very easy to go with batteries. Another thing is that it is not so power hungry as the soekris, since soekris draw a lot of current with its digital part. So, the diyer at diy...
by wyan
Fri Jun 09, 2017 5:00 am
Forum: Computer Audio
Topic: Another interesting r2r dac
Replies: 123
Views: 48607

Re: Another interesting r2r dac

Hi, guys, so how is the R2R by audio-gd compared to the one by soekris? Thanks.