Greetings,
Yesterday on set, my 480b preamp developed a rattle sounding like a screw has come loose inside. Preamp still works, but the loose screw hit something during a take and caused an issue.
Anyone have experience taking the electronics out the tube?. There's a set screw at the bottom but looks like you have to pop something off on top to get the guts to slide out.
Any help would be appreciated..