Quite a while ago when I was young and naive I picked up a second hand bluesbreaker reissue from a local shop. I've used it very rarely since I got it so the valves have lasted quite a while. Then just earlier today, one of the power valves blew.

I opened it up to take a look inside and assess the damage only to notice that there is no serial number anywhere on the amp. The rear plate has text on it that says "Serial Number RI" but then no actual number. So I'm a little confused.

Was the serial number perhaps printed on a sticker that has since fallen off? Or is there something strange going on?

Here's what I'm talking about:
serial number.jpg
Last edited by Snake_42 at Aug 2, 2014,