GuitarGuy08
Well-known member
This is an odd one. I have a EuroTubes Bias Probe, the cheap one for around $20. I have used it a number of times successfully in the past.
Well, I pulled it out of my little gear bag, which is admittedly a bit cramped at times, and plugged it up to bias a set of RCA NOS outputs.
Not working. Not only is it not working, it seems to almost surge or spike the power to the tube(s), making me shut off the amp.
I tried a few times and with different sets. The tubes and amp work completely fine and do not do this if the probe bias isn't connected.
What could have happened? A short in one of the leads from being rolled up? I've never seen this.
The meter will keep the 1 at the front and then 'blink' in other numbers. When removed from the probe and amp, the ohm readings are totally what you would expect.
I would think it's a problem with the amp, but it is fine if the bias probe is not in it, making me think the probe has some sort of issue.
Going to try to get to a friend's house so I can bias this up so I have my amp back. Any ideas are appreciated!
Well, I pulled it out of my little gear bag, which is admittedly a bit cramped at times, and plugged it up to bias a set of RCA NOS outputs.
Not working. Not only is it not working, it seems to almost surge or spike the power to the tube(s), making me shut off the amp.
I tried a few times and with different sets. The tubes and amp work completely fine and do not do this if the probe bias isn't connected.
What could have happened? A short in one of the leads from being rolled up? I've never seen this.
The meter will keep the 1 at the front and then 'blink' in other numbers. When removed from the probe and amp, the ohm readings are totally what you would expect.
I would think it's a problem with the amp, but it is fine if the bias probe is not in it, making me think the probe has some sort of issue.
Going to try to get to a friend's house so I can bias this up so I have my amp back. Any ideas are appreciated!