#1
|
||||
|
||||
Burnt resistor?
Well, I think I might have overlooked this the first time I removed the chassis from my ctc-16... What exactly would lead to the destruction of a resistor on pin 1 of the 6bk4 shunt regulator tube, it burned in two, from what I can make out it looks to be a 1000 ohm resistor, but cannot make out the tolerance... this is the fed +400 v supply.. Im in the midst of replacing all the lytics in the cans.. Do you guys know the exact for this reststor?
|
#2
|
||||
|
||||
Yes, this is a 1000 ohm resistor...This resistor is so you can calculate the 6BK4 cathode current...you can measure the voltage across it to find the current. As I remember, 0.8-1 volt is normal (usual 6Bk4 cathode current should be around 0.8-1 ma or 800-1000 microamperes)
|
#3
|
||||
|
||||
Oh, does this resistor cause any operating issues, and why would it burn in two?
|
#4
|
|||
|
|||
Resistors usually burn up because there was too much current through them. I'd look for a shorted component (including the tube) in the associated circuitry. When you finally replace it, make sure you use one of the same wattage.
Rich |
Thread Tools | |
Display Modes | |
|
|