"Luis Vasquez" wrote...
[snip]
I've been reading some older posts here, and it seems as though there was a
bad batch of YB-400s at one point. I guess I got one of those.

I thought about saying that, after I clicked "send"
last night. It seems to me that most of the bad
YB400s were purchased at Radio Shack... and
they were the newer YB400PE models (silver).
If you're referring to a YB400PE then maybe
you did indeed get one from the bad batch.