07-22-2022, 09:45 PM
It's been a few days and the "blurp" has gone away, but while i was spending time in the back of the set i noticed this.
This is one of the 6b4g power tubes, they were purchased as NOS set about 2 months ago. You are looking at the right tube and the left one is in the frame. I know it is dark but i wanted to capture this blue/purple glow. It is about this bright with normal ambient light.
What is happening? I switched the tubes and the glow follows the tube and not the circuit. I have 2 heater circuits one with about 6.1 volts and one with about 6.6. You can see at the end of the vid that a small area stays blue once the tube warms up, but it is not evident in the other tube.
I use a fake name for youtube.
Thanks
Bill
[Video: https://youtu.be/llSyscjRO4A]
This is one of the 6b4g power tubes, they were purchased as NOS set about 2 months ago. You are looking at the right tube and the left one is in the frame. I know it is dark but i wanted to capture this blue/purple glow. It is about this bright with normal ambient light.
What is happening? I switched the tubes and the glow follows the tube and not the circuit. I have 2 heater circuits one with about 6.1 volts and one with about 6.6. You can see at the end of the vid that a small area stays blue once the tube warms up, but it is not evident in the other tube.
I use a fake name for youtube.
Thanks
Bill
[Video: https://youtu.be/llSyscjRO4A]
