Hello everyone,
I'm new to this forum and am very excited that I just finished my initial Crack build! I stayed up way too late getting it put together and today I went through the resistance and voltage checks successfully. I was looking forward to having my first listen but haven't quite gotten there yet. When I initially plugged in my 650s I heard a disconcerting pop.
I went on just a little further and started playing some music while turning the pot up. The good news is I did hear music! Unfortunately, I also heard an interesting clicking/bubbling type of noise, or perhaps a clicking (like the noise that hot metal makes while it is heating up or cooling down sometimes.). At that point I unplugged my cans, turned the crack off for a moment and then turned it back on. This time, without headphones plugged in the 6080 tube was making audible noises that I can best describe as sizzling and some light clicking (like I heard in the headphones the first time).
Though I'm confident in my building ability and the tests passed something seems wrong here. I am new to tube amplifiers, do (new?) tubes tend to make noise when they are used the first couple of times? Or, is something else wrong?
Any help would be appreciated!
Thanks,
Paul