Home SET Asylum

Single Ended Triodes (SETs), the ultimate tube lovers dream.

[ Follow Ups ] [ Post Followup ] Thread: [ Display  All  Email ] [ SET Asylum ]
[ Alert Moderator ]

Thank you

"Phase Shift Desired

Multiplier

5 degrees
11.43

10 degrees
5.67

15 degrees
3.73

30 degrees
1.73

45 degrees
1


Here is an example of how to use the above multipliers. Say you have a 5,000 ohm nominal primary impedance and you desire only 15 degrees of phase shift at 100 hertz.

So at 100 hertz we would want (by referencing the table above) an inductive impedance of 3.73 times 5,000 ohms.

Solve for the following;

18,650 equals 6.2834 times 100 times L

L is the unknown variable. In this case L must be 29.6814 henries."

So if the 5K is changed by up tapping to 10k the required inductance for a desired phase shift will double.

So for a -3db point (phase shift of 45 degrees) L = reflected impedance / (6.2834 * frequency). (added to my spreadsheet)

If I double the reflected impedance by up tapping the output transformer the -3db point goes up an octave.

3200:8 with 25.5Hy will do 20Hz at -3db. Connecting a 16 ohm speaker will reflect 6400 ohms and the -3db point will be 40Hz. To maintain 20Hz at -3db would require 51Hy.

Thanks Mike.

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:
  Western Glow Tube Service  

Follow Ups Full Thread
Follow Ups
  • Thank you - Tre' 09:10:41 01/29/15 (4)
FAQ

Post a Message!

 Forgot Password?
Moniker (Username):
Password (Optional):
  Remember my Moniker & Password  (What's this?)    Eat Me
E-Mail (Optional):
Subject:
Message:   (Posts are subject to Content Rules)
Optional Link URL:
Optional Link Title:
Optional Image URL:
Upload Image:
E-mail Replies:  Automagically notify you when someone responds.

[ Top Top of Page ] [ Contact Us ] [ Support/Wish List ] [ Copyright © 2024, Audio Asylum, all rights reserved ]
[ General ] [ Speakers ] [ Tubes ] [ Vinyl ] [ Digital ] [ Hi-Rez ] [ Video Asylum ] [ Cables ] [ Tweaks/DIY ] [ Music ] [ Films ]