Dead preamp tube?
Posted: Sat Oct 15, 2011 9:26 am
Hi everyone,
I recently put a Tung-Sol 12AX7 in the V1 position of my JSX head. Everything was ok until I decided to test the outcome of putting it in various positions.
When I tried to remove the tube from V1, it was very difficult. The tube was stuck in there. I finally managed to get it out and put it in V2.
Powered up the amp, and I was getting no sound at all. I switched it to V3 (which is the fx loop and active eq I think) and I was getting sound. But as soon as I engaged the FX loop, the sound was gone.
Do I have a faulty tube? I see its filament light up a bit but not as much as my other preamp tubes.
I recently put a Tung-Sol 12AX7 in the V1 position of my JSX head. Everything was ok until I decided to test the outcome of putting it in various positions.
When I tried to remove the tube from V1, it was very difficult. The tube was stuck in there. I finally managed to get it out and put it in V2.
Powered up the amp, and I was getting no sound at all. I switched it to V3 (which is the fx loop and active eq I think) and I was getting sound. But as soon as I engaged the FX loop, the sound was gone.
Do I have a faulty tube? I see its filament light up a bit but not as much as my other preamp tubes.