I jsut built my first bottlehead kit, the eros 2. Everything tests within spec, and everything worked when I first built the pre-amp. Fast forward two days, I turn it on, no right channel audio. At first I thought it was the tube closest to the power supply. I jiggle it around (its quite loose) and I get some noise, I can pull it out all the way and I still have audio in the left channel.
I dont know what to do to fix my issue, any hints?