|
Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
|
|
|
Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
|
In Reply to: RE: update 3 posted by vinnie2 on October 26, 2016 at 06:18:15:
The formula for critical inductance is,
inductance = ((voltage/current) + dcr of choke) / 1000
Most books (including the one linked by elblanco) state that one should use 2 times the calculated critical inductance.
"..when I get the other channel set up is it correct to assume the critical inductance becomes 7.5 Hy?"
No, if you draw twice the current at the same voltage then critical inductance will be one half the value originally calculated but you have to figure in the DCR of the choke so it won't be exactly one half.
The math at 130ma. current draw
475/.13=3655+100 (drc of choke just a guess)=3755/1000=3.755Hy So twice that would be 7.51Hy
The math at 260ma. current draw
475/.26=1827+100=1927/1000=1.927Hy So twice that would be 3.845Hy
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- RE: update 3 - Tre' 06:58:01 10/26/16 (1)
- RE: update 3 - vinnie2 08:00:17 10/26/16 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2024, Audio Asylum, all rights reserved ]
