Hi grunf
Thanks for sharing your experience. Let's test the attached circuit.
Also, can the circuit diagram in the link below be directly applied to AD1862? It looks like a circuit that does I/V using a vacuum tube, so I'm interested.
https://www.diyaudio.com/community/threads/tube-i-v-stage.382184/#post-6954411
Hi guys!
I'm building my PSU2 at the moment.
The WIMA 0.1 uF 100VDC capacitors disappeared from Mouser.
Mouser has so many other options .
Can I choose any of those?
I'm building my PSU2 at the moment.
The WIMA 0.1 uF 100VDC capacitors disappeared from Mouser.
Mouser has so many other options .
Can I choose any of those?
Hey everyone,
I’m curious if any amount of burn in/ break in is necessary or recommended for Miro’s dac. I’ve only been using this dac for a couple hours and noticed some scratchy noise from both channels. I will have to listen more to provide more details.
Yes I can try a different opamp. I don’t have any lm6171 but do have some others. Thanks for the reply. I will let you know
Miro
I only have soic opamps and no headphones. I will try with what I have
I'm almost finish the PSU-1. The problem is KG 4700uF. They are too big for place on board. I solder only two of them and the others don't fit😢
I want to solder Epcos B41851A5478M000 (4700/25) - they are smaller. Can I?
Unfortunately I could't found resistors from BOM but I have the alternative. That's why it wasn't so neat.
What I have left to do? - measure the voltage of PSU (+5 and +12) without DAC and then connect to DAC board and Amanero, right?
Oh, yes - one more thing - I was planning to build PSU 2 originally and solder J1-J13 2r2 resistors (2,2ohm). Can I use them or I need to change to jumpers? I could't found any LT's but everything was for PSU-1 so I buyed🙂
What else to look out for?
Sorry for such many questions but it's my first diy Dac))
I want to solder Epcos B41851A5478M000 (4700/25) - they are smaller. Can I?
Unfortunately I could't found resistors from BOM but I have the alternative. That's why it wasn't so neat.
What I have left to do? - measure the voltage of PSU (+5 and +12) without DAC and then connect to DAC board and Amanero, right?
Oh, yes - one more thing - I was planning to build PSU 2 originally and solder J1-J13 2r2 resistors (2,2ohm). Can I use them or I need to change to jumpers? I could't found any LT's but everything was for PSU-1 so I buyed🙂
What else to look out for?
Sorry for such many questions but it's my first diy Dac))
Attachments
Is fitting the remaining 2 capacitors under the board an option? It will create the need for a taller chassis though.
Yup , power up the PSU to measure the voltages before connecting to any other boards.
I would let the 2.2ohm remain if they have been soldered already. They are not needed if using PSU1 but they do not take away anything significant from the power supply if you leave them on the board. i have them on the board.
Just try 47 to 220 uF general purpose cap i.e. not low esr, and desolder the output 0,1 uF cap.
Problem being to find not too good esr to lowisch the impedance output, do not choose audio cap and not too much high voltage...16 V for instance. Here no silmic 2 or kz or even fm or fc...just try normal caps...the good esr caps on the dac pcb near the loads do the job.
Problem being to find not too good esr to lowisch the impedance output, do not choose audio cap and not too much high voltage...16 V for instance. Here no silmic 2 or kz or even fm or fc...just try normal caps...the good esr caps on the dac pcb near the loads do the job.
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Which caps I should change? 0.1uf - that's Wima but they're located near transistors and near the input. There is no output caps. I don't understand this moment. And why is change needed? Can you tell me please?
the ground is the reference. probe + and ground and then probe - and ground.
yes base on what you measured across + and - mentioned above, i expect that you will get around 5v and 12v, which will be correct.