You don't add link in the 1st post, and be good if schematic image been little smaller, few last is large :/
I will add link to thread. Regarding images, hit "refresh" button and all will be resized to fit.
sorry guys not to bother too much but I've been searching for the P30 supply layout 24V for a while and I can't find it, can some one let me know the post number ?
Regards
Juan
Regards
Juan
Juan my mistake, i don have specially for P30 but i have "APEX 2x24V Aclass PSU"
You can find in this thread > http://www.diyaudio.com/forums/power-supplies/164365-class-preamp-psu.html
Schematic > http://www.diyaudio.com/forums/power-supplies/164365-class-preamp-psu.html#post2140391
PCB > http://www.diyaudio.com/forums/power-supplies/164365-class-preamp-psu-2.html#post2365228
You can find in this thread > http://www.diyaudio.com/forums/power-supplies/164365-class-preamp-psu.html
Schematic > http://www.diyaudio.com/forums/power-supplies/164365-class-preamp-psu.html#post2140391
PCB > http://www.diyaudio.com/forums/power-supplies/164365-class-preamp-psu-2.html#post2365228
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thank you
I think I should made a clone layout of this layout from mister Mile 🙂
Best Regards
Juan
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Previev post i missed one negative track from resistor 22K.
Now is correctly..
And i copy silkscreen...
Now is correctly..
And i copy silkscreen...
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Zynix,
Thanks for the layout. That layout ooks pretty nice. Do you know what the noise ripple spec is? I am hoping circa 50 micro volts.
Thanks for the layout. That layout ooks pretty nice. Do you know what the noise ripple spec is? I am hoping circa 50 micro volts.
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I have built the A Class PSU and it is very clean. Maybe even cleaner is the Jung Regulator that OS and Jeff designed. A lot more parts though.
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Did you ever look at ripple on scope? I have heard the Salas shunt is one of the cleanest supplies. Uses 3 stages of regulation I think.
All are fed from a 26-0-26VAC transformer. Measured without a load. Each are set to approximately +-24VDC.
The first three all measured about the same. Very low ripple. Surprisingly though, The PSU I built for my Self Preamp shows less noise and ripple than the first three. It shouldn't but it does. Not sure why.
The first three all measured about the same. Very low ripple. Surprisingly though, The PSU I built for my Self Preamp shows less noise and ripple than the first three. It shouldn't but it does. Not sure why.
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How many micro volts is low ripple? You are saying that a basic 7824 and 7924 has less ripple than the complex ones above?
