Hello.
While finishing up my amp., i was thinking of upgrading the Triad choke to some DC-Toroidal with the following specs. ::
I have some quistions regarding the psu-part of my TSEII (ripple, B+ etc...)
I use "stock" components, aka' C4=47uF, C5=150uF, Choke=Triad C14X (6H / 150 Ohm)
Transformer 325 - 0 - 325 @ ~220mA (Toroidal custom wound)
I found an older thread here, where this was also discussed, but didn't answer my quistions through. https://www.diyaudio.com/forums/tubelab/163641-lowering-voltage-4.html
Playing with PSUD designer, i can simulate the two different chokes.
Looks like ripple goes from 0.06 to 0.03 swapping the Triad with the Toroidal one.
Same time voltage rises around 20VDC with approx. load of 165mA
What i cannot figure out is, will the higher voltage stay there with B+ around 20vdc more or will it lower when actually in amp. loaded with my 300b biased at ~67mA or will i "win" nearly 20vdc of B+ (guess not
?)
Ohh... one thing more, is the load set at 165mA on psudesigner right?
Any other things i have to consider? - Consequences perhaps?
Jesper.
While finishing up my amp., i was thinking of upgrading the Triad choke to some DC-Toroidal with the following specs. ::
Toroidal choke 10H 250mA
Through the use of innovative toroidal cores production and winding technology, compared to EI-chokes, we have achieved exceptional electrical parameters. Major advantages are: minimal external magnetic leakage fields, noiseless operation and much lower DC resistance.
Technical data
Core type toroidal
Inductance L 10H
DC Resistance 45Ω
Nominal DC Current 250mA
Nominal voltage 400V
Dimensions 88 mm (OD) x 35 mm (h), weight: 1,3 kg
I have some quistions regarding the psu-part of my TSEII (ripple, B+ etc...)
I use "stock" components, aka' C4=47uF, C5=150uF, Choke=Triad C14X (6H / 150 Ohm)
Transformer 325 - 0 - 325 @ ~220mA (Toroidal custom wound)
I found an older thread here, where this was also discussed, but didn't answer my quistions through. https://www.diyaudio.com/forums/tubelab/163641-lowering-voltage-4.html
Playing with PSUD designer, i can simulate the two different chokes.
Looks like ripple goes from 0.06 to 0.03 swapping the Triad with the Toroidal one.
Same time voltage rises around 20VDC with approx. load of 165mA
What i cannot figure out is, will the higher voltage stay there with B+ around 20vdc more or will it lower when actually in amp. loaded with my 300b biased at ~67mA or will i "win" nearly 20vdc of B+ (guess not
Ohh... one thing more, is the load set at 165mA on psudesigner right?
Any other things i have to consider? - Consequences perhaps?
Jesper.