Hello, I am planning the build of my first tube amp. I would like to keep all the power supply components on one side of the assembly, and all the audio on the other side to minimise hum. To do so I would have to install 2 chokes in a line. Would having the 2 chokes close together promote magnetic leakage of one into the other? In other words can I set them up close together or is it better to keep them at a distance?
Please see the attached picture to see how I plan to install them in respect to each other.
Thanks, Phil.
Please see the attached picture to see how I plan to install them in respect to each other.
Thanks, Phil.
Attachments
At least turn one so it is at right angles to the other. This should reduce the magnetic interaction.
Hello,
Glad you are getting into the hobby. Web site below show some of the options and possibilities for minimizing inductor interactions. Thought you might like to see it.
Placement of coils in crossover networks
Regards,
Greg
Glad you are getting into the hobby. Web site below show some of the options and possibilities for minimizing inductor interactions. Thought you might like to see it.
Placement of coils in crossover networks
Regards,
Greg
I am curious as to the orientation and magnetic field related to other coils such as power transformers, filament transformers and chokes. Any information regarding these would be appreciated as well.
Fun Xmas experiment: build a dual pi-filter C-L-C-L-C-R (R being 50K - 50W) with all the components wired up with a little extra slack between each. Then hook up a scope to see the ripple across R.
Now for the fun bit: move the chokes around relative to each other and observe which configuration results in the lowest ripple...
My bet is that:
a) L1 needs to be 90 degrees turned relative to L2, and
b) The further they are away from each other, the better.
That said, I have not tried this - yet...
Now for the fun bit: move the chokes around relative to each other and observe which configuration results in the lowest ripple...
My bet is that:
a) L1 needs to be 90 degrees turned relative to L2, and
b) The further they are away from each other, the better.
That said, I have not tried this - yet...
Check out page 155 of this document: http://www.guitarstudio.tv/documents/Designing-V-T-Amplifiers.pdf
