It will be more as day and night 🙂
I replaced all LT3045 PSUs (2..6 paralleled) in my DAM1941 DAC. I never look back.
Thanks for your information, I'm looking forward to receive the parcel and build up the UltaBIB. In my setup I will replace 3x pos, 3x neg rails of LT3045 located in the DAC and in the AMP.. It would be amazing if i got some SQ improvements in all that places 🙂
Did you have done some specific changes in the UltraBIB or let say just stock build with recommended parts ?
Hi all, I'm waiting for all the components, then I'll start building. May I use, in your opinion, vertical heatsinks instead of the baseplate?
Many thanks,
Gaetano.
Many thanks,
Gaetano.
Vertical works better for airflow when feasible. In combination with top and bottom box ventilation slots. For substantial dissipation set ups where just using the base plate isn't enough.
I've searched the thread and the build guide for information on fuse selection and it's limited or hasn't shown up for me.
Bearing in mind that I'm not implementing the anti-ringing capability, the points that I'd like guidance on are:
I recognise that the build guide notes:
Thanks for the input .. 😉
Bearing in mind that I'm not implementing the anti-ringing capability, the points that I'd like guidance on are:
- Fuse type recommendation or guidance for selection? Slow or fast blow?
- Fuse current rating selection guidance - what's a sensible margin above the selected CCmA current?
I recognise that the build guide notes:
but I'd rather not rely on a single line of protection.
Thanks for the input .. 😉
Talking primary and secondary side transformer fuse?
https://solahevidutysales.com/pdf/transformers/Fusing.pdf
https://solahevidutysales.com/pdf/transformers/Fusing.pdf
Primary fuse.
I think the link covers what I'm after. My thinking was in that ball park but the additional guidance is reassuring.
Thanks - appreciated.
I think the link covers what I'm after. My thinking was in that ball park but the additional guidance is reassuring.
Thanks - appreciated.
I am planning to use two pairs of ultrabibs to supply 38v with CCS set to about 300mA of CCA (likely shunting 150 maybe 200 in which case I'll drop CCS down a bit).
I had 40v Mundorf AGs I used to build the sets when I thought I would be using them at 15v with another i/v stage. Should I swap these out with higher rated caps? The next up for Mundorfs would be 63v.
I had 40v Mundorf AGs I used to build the sets when I thought I would be using them at 15v with another i/v stage. Should I swap these out with higher rated caps? The next up for Mundorfs would be 63v.
Surely to set 38V DC output you would also want at least 5V higher raw DC (rectified DC). That condition exceeds 40V on C1.
Hi all, if I want 24V output from the UB, should I choose different components from lower voltages? I would like to use it to supply a B1 with Korg triode...
Thanks everybody,
Gaetano.
Thanks everybody,
Gaetano.
Hi
The component values of the standard schematic will work for you. You could arguably use 10k trimmer instead of 20k but better not just in case it will prove marginal for reaching 24-25V due to possible tolerances in the active components.
The component values of the standard schematic will work for you. You could arguably use 10k trimmer instead of 20k but better not just in case it will prove marginal for reaching 24-25V due to possible tolerances in the active components.
Here's an outline of how I would do it, to suit conditions local to me, while accounting for the advice and supporting info provided by Salas in Post #1.
For a small transformer (I've referred to some vendor data for a toroid), the regulation / sag at load is significant. For the assessment attached, I've not added any margin or other factors.
For a small transformer (I've referred to some vendor data for a toroid), the regulation / sag at load is significant. For the assessment attached, I've not added any margin or other factors.
