Hi Brentrowemeister said:
Can I use a LD1086 for the clock psu on the dac ?
I have only one of those and read they can be unstable with little loads... can it be an issue ?
By the way, I just installed the DAC digital +5v rayreg and it is burning beautifully.... better stereo image and stage depth.
Regards
Ricardo
The 1086 should be fine, current required here is very small.
I would'nt bypass the the Oscon.
Brent
I would'nt bypass the the Oscon.
Brent
To separate or not?
I notice that Brent's player mod list has the DAC and Decoder each powered by a PSU, with 5V feeds for analogue and digital bits; is it best to use power the digital and analogue together, or the chip( DAC or decoder) as Brent has?
The single channel static noise vulnerability seems to have been sured by 1086s on main 5V feed and on the output opamps 12V. All three were free samples, so its a pretty good tip.
I notice that Brent's player mod list has the DAC and Decoder each powered by a PSU, with 5V feeds for analogue and digital bits; is it best to use power the digital and analogue together, or the chip( DAC or decoder) as Brent has?
The single channel static noise vulnerability seems to have been sured by 1086s on main 5V feed and on the output opamps 12V. All three were free samples, so its a pretty good tip.
Re: To separate or not?
My CD 53 now has 6 TX windings working independently.
Everytime I add one more TX, a big improvement is felt.
Brents machine sumarizes all of the known best practices in this forum.
Ricardo
My experiments indicate that each +5v should have it´s own dedicated psu.magilla said:
My CD 53 now has 6 TX windings working independently.
Everytime I add one more TX, a big improvement is felt.
Brents machine sumarizes all of the known best practices in this forum.
Ricardo
Re: Re: To separate or not?
Ricardo, you are the teacher's pet! 😀 😀
I have also found that each regulator and psu added gives rewarding improvements.
Simon
RCruz said:
Ricardo, you are the teacher's pet! 😀 😀
I have also found that each regulator and psu added gives rewarding improvements.
Simon
I used a 2X 9V 15VA tx for DAC and a 2X 9V 7VA tx for decoder. All 4 supplies use a seperate winding of the two transformers with seperate diodes and caps.
I used the larger tx for the dac as it uses more current than the decoder which uses very little
Brent
I used the larger tx for the dac as it uses more current than the decoder which uses very little
Brent
Re: Re: Re: To separate or not?
But I can recognize a good work.
Ricardo
I am not.SimontY said:
Ricardo, you are the teacher's pet! 😀 😀
But I can recognize a good work.
Ricardo
Re: Re: Re: Re: To separate or not?
Just joking my man! 😎
RCruz said:
Just joking my man! 😎
rowemeister said:
An externally hosted image should be here but it was not working when we last tested it.
That's nice Simon, I see you have modded it with those studs since I last saw you with it. LOL
Brent
Brent
SimontY said:He's more pointing at your quote!!
rowemeister said:
Mongs.
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Is there anything wrong with not using dc blocking on the output of my discrete? (apart from frying any amps without blocking on their inputs).
I would rather just have dc blocking on my preamp, then I can use my nice caps there and make everything sound better!
Lee.
Oh, and has anyone seen my multimeter?
Hi Brentrowemeister said:
The C1 arrived..!!!
I would like to place it on U196 but this link is covered by a large 470uF OsCon I placed in CD05.
Should I place the cap on CD04 and place the clock nearer the DAC (option 1), or should I leave the big CD05 and place the clock on the XD01 output hole (option 2) ?
I will replace RD01 with a LM340AT and remove CD04 if (option 2) is ok.
Regards
Ricardo
Hi Ricardo
I would place the clock as near to the dac as possible.
Arrived today! It was posted on the 5th or 6th at the latest. That's a rubbish amount of time, I apologise.
Brent
I would place the clock as near to the dac as possible.
Arrived today! It was posted on the 5th or 6th at the latest. That's a rubbish amount of time, I apologise.
Brent
Hi Brentrowemeister said:
So I should remove CD05, Keep CD04, replace RD01 with a reg ?
I know the delay is not normal but we are experiencing truck driver strikes all over the Country (due to diesel prices) and the 10th was a National Holiday so I guess it was not bad after all.
Ricardo