Home Tube DIY Asylum

Do It Yourself (DIY) paradise for tube and SET project builders.

RE: Increase L in pi network

Do you have too much B+ ripple?

Typically you want just enough filtering to make an amp acceptably quiet. If it is quiet, adding more filtering is not usually good for sonics. If you are using high quality caps and chokes, bigger ones are way more expensive.

If you have hum, most of the time it is not from the B+ rail unless you are using a poorly designed filter.

FWIW, A filter of 40uf-4H-40uf-4H-40uF @ 100mA to 200mA will be quiet and good sounding. You can get reasonably priced 300mA rated chokes that will be mechanically quiet as well. For highish current power supplies, high inductance chokes are not always better sounding.


This post is made possible by the generous support of people like you and our sponsors:
  Sonic Craft  


Follow Ups Full Thread
Follow Ups

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.