Hello everyone!
I've just noticed that when my tube preamp is plugged into my computer (giving it a ground connection) that even with the computer sound muted (I'm sure that it is NOT the computer or a virus making this music) If I turn up the volume of my amplifiers connected to my tube preamp (all of which are solid state) I can hear the faintest bit of music, it's clear but so so faint, and almost drown out by the pink noise that my tube pre-amp makes (it's a homemade, self designed low voltage line level preamp, it's not perfect).
Here's a schematic that I made a bit ago of my Low Voltage Line Level Tube Preamp (I believe the only change is R4 is now 10K)
![Click the image to open in full size.]()
Any help or information is appreciated, thanks!
EDIT: I've just found out that it's actually picking up an AM station, which is actually located about 3 miles from me...
I've just noticed that when my tube preamp is plugged into my computer (giving it a ground connection) that even with the computer sound muted (I'm sure that it is NOT the computer or a virus making this music) If I turn up the volume of my amplifiers connected to my tube preamp (all of which are solid state) I can hear the faintest bit of music, it's clear but so so faint, and almost drown out by the pink noise that my tube pre-amp makes (it's a homemade, self designed low voltage line level preamp, it's not perfect).
Here's a schematic that I made a bit ago of my Low Voltage Line Level Tube Preamp (I believe the only change is R4 is now 10K)
Any help or information is appreciated, thanks!
EDIT: I've just found out that it's actually picking up an AM station, which is actually located about 3 miles from me...