View Single Post
  #4   Report Post  
Posted to sci.electronics.repair
Fred McKenzie Fred McKenzie is offline
external usenet poster
 
Posts: 388
Default Another old-timer tube/valve question

In article ,
Cursitor Doom wrote:

Gentlemen,

What are the typical average/maximum operating temperatures of a full
wave rectifying tube/valve? Is it normal for them to become too hot to
touch after only a minute or two?
I'm talking specifically about the 5Y3GT in this context.


Voltage drop times current, filament (cathode) to plate, plus voltage
times current across filament. Never measured temperature, but energy
has to go somewhere. Gets hot, radiates.

Fred