Home Tube DIY Asylum

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

RE: DC voltage drop across choke vs resistor!!!

"My confusion is that with everything in place with only only one power supply to one tube no other branches the current should be constant."

The amount of current the tube will draw depends on the bias condition of the tube.

If the tube has more voltage across it (plate to cathode) with the choke in place vs. the resistor in place then it will draw more current.

I'm not sure why you think the current should be constant.

Power supplies, unless they are current regulated supplies, supply whatever current the tube circuit demands.....not the other way around.

"I am guessing the DC circuit is seeing the choke as more than just its resistance. My question is why."

The DC will only see the resistance of the choke. The AC (music signal) will see the resistance of the choke and the reactance of the choke in series.


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:
  Signature Sound   [ Signature Sound Lounge ]

Follow Ups Full Thread
Follow Ups


Post a Message!

Forgot Password?
Moniker (Username):
Password (Optional):
  Remember my Moniker & Password  (What's this?)    Eat Me
E-Mail (Optional):
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.