Home Tubes Asylum

Questions about tubes and gear that glows. FAQ

I have biased tubes in the past above true ground but. .




what is a basic formula for this? It has been a long time and I don't remember the values I used for this. I want to bias a filament 20 volts above true ground. This is DC. The filament DC voltage is 1.25 volts, a miniature tube with a current draw of .01 amp for the filament. Or, can it be done for this tube?

Thank you.


iBasso DX300MAX Ti. Focal Utopia and Stellia. iBasso SR2. Mr. Speakers, Ether II, Voce stats. Manley, Absolute headphone amp. LTA MZ3, Z10e electrostatic amp. Many other headphones, amps, cables etc.



Edits: 10/22/24 10/22/24 10/22/24 10/22/24 10/22/24

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


Topic - I have biased tubes in the past above true ground but. . - John PA 09:38:58 10/22/24 (7)

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.