Hello Salas, I have a center tapped transformer and I was wondering if it would work if I only used one diode on the positive rail and one diode on the negative rail? That way I can connect the CT down the middle ground. Thank you!
Bao
Bao
Naturally it would also work as two diode full wave rectification with center tap. But remember that the current through each winding is double to a bridge rectifier. √2 times more power is required from the transformer.
Hey Salas... sorry for my overreaction earlier. In reality I think it didn't make any audible differences. It was an impactful lesson on the frailties of human perception 😱
Set up a turntable and build a phono stage. It will be a nice alternative to compare tone and instruments presence. Plus playing vinyl is a therapeutic ritual.
When I get the time 😉 Digital recording are indeed imperfect...
I’m considering replacing the small UI transformer in my build mostly because it’s out of spec. I’m running 120V AC but it’s rated 110 so it gets quite hot... Do you know if I would be better off getting the original 6VA(0.6w idle core loss) or a larger 15VA (1w core loss)? The height increase by 50% and I can’t make up my mind on whether it would reduce magnetic flux leakage. I’ll also get customized shielding for the windings built in the new transformer but it sadly won’t help much with leakage. Just theoretically is it better to get the larger transformer when both have enough capacity? Thanks so much for all the advice!
Right. But should I choose the larger or smaller one?... or are they almost equally good?
The guy who lent me his Benchmark DAC3 for a subjective comparison with the RME ADI-2 DAC (DAC3 wins hands down) was here the other day to pick it up and we also played a couple of records on my humble DIY modded old British all wooden TT with a 300 Euro AT MC cart through the Folded Simplistic phono.
That's annoying he said, two classes higher in realism than my DAC, why still that happens? I shrugged, not having a clue as to why.
LED power indicator
I tried using the search function to look for this but didn't have any luck - forgive me for asking again but do we tap the the LED power indication from the C1 reservoir capacitor?
I tried using the search function to look for this but didn't have any luck - forgive me for asking again but do we tap the the LED power indication from the C1 reservoir capacitor?
Hello, For negative rail, instead of IRF9530 I have IRF9540. It has lower Rds(on) but all capacitance is almost doubled. Any problem with that?
Depends on how bright you want it to shine. If it has 1.8V Vf then say 5-1.8=3.2V/3.3k=0.97mA that's rather good for a panel led not to stick out too much. For any Voltage on C1 use the same type of calculations.