It will increase the internal resistance if the batteries are without these solder lugs. I am afraid that it will lose the meaning of using battery power.
Source for ANR26650M1-B €6,85 (about USD7,77)
NKON | A123 systems ANR26650M1-B 2500mAh - 70A LifePo4 - 26650 size - Rechargeable batteries
NKON | A123 systems ANR26650M1-B 2500mAh - 70A LifePo4 - 26650 size - Rechargeable batteries
@iancanada
Is it possible to parallel psu's for extended playtime?
The reason why I ask this is because of possibly use for my Class-A pre-amp which is rather power-hungry.
If not, maybe it is wise to think about possibility for extension-unit to parallel batteries.
Extension thru a header and thick cabling to 26650 holder(s).
Btw, I would prefer 26650 holders on PCB's instead of soldering those 26650's, just for easy replacement
Is it possible to parallel psu's for extended playtime?
The reason why I ask this is because of possibly use for my Class-A pre-amp which is rather power-hungry.
If not, maybe it is wise to think about possibility for extension-unit to parallel batteries.
Extension thru a header and thick cabling to 26650 holder(s).
Btw, I would prefer 26650 holders on PCB's instead of soldering those 26650's, just for easy replacement
It's a S/PDIF receive board from eBay. I'm happy with it because it has additional I2S/DSD input so I can have my RPi connected to it.
Regards,
Ian
FifoII converts I2S 16bit into 32bit. So, just enjoy and go ahead with the combo for your BIII.
Regards,
Ian
@iancanada
Hi Ian,
Great to see the progress on your psu development!
Is there any news on these, based on UltraCaps?
Keep up the good work
Cheers,
Alex
ultra capacitor power supply 1st prototype PCB order placed. You will see it soon.
Regards,
Ian
do you have the ebay link? it's hard to discover the good from the bad there (or other online shops). thank you
I built a DAC project this weekend.
1. LifePO4 power supply
2. Buffalo III SE DAC
3. Mercury I/V stage
4. McFifo
5. McDualXO
6. S/PDIF receiver
7. RPi
8. FifoPi (as DoP decoder and I2S 16bit to 32bit converter, this function could be integrated into McFifo later)
9. Ess controller as music format analyzer/monitor (optional)
To build a DAC project has never been this easy. I mean top quality. Because no need big transformer/s and capacitors and complicated power cables any more.
DACproject by Ian, on Flickr
Ian
+1
Love that! I got similar setup. To just stream Tidal Rpi is completely unnecessary. One can connect Chromecast Audio to spdif receiver through toslink. In such case you get possibility to control Tidal with native app (not achievable with RPI) Now:
1) try teramoto finemet transformer instead of Mercury
2) Haven't you thought about building such spdif receiver but wit rpi footprint? FifoPi could be easily stuck on it. You would get the market where rpi + volumio + myvolumio (3Eur/month) is used to get Tidal playback.
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It's a very good question.
Because all ultra capacitor rails are isolated from each other, so theoretically, yes, you can.
The alternatively solutions would be using bigger ultra caps, such as 3000F, or having them parallel externally.
I'll try some 26650 holders to see if thy can fit.
Regards,
Ian
I thought you had a similar product of yours, how come you're using a foreign board? does it work correctly?
thank you as well.
It's just a spdif interface, noting special. So, no worry.
I'll do a interface board with everything integrated later when I get time. It's just a functional verification for now. I don't have problem.
Regards,
Ian