I've borrowed an old amp from a friend, I think it can be from the 70's. It has a vintage look, and I think the logo says "galanti". Has anyone heard of this ? Is it any good? It's not working too well tho, I think it might need new tubes or something, 'cause it's REALLY noisy, and it changes it's volume sporadicly. I have to beat it really hard - then I can hear it has sounded good once, and can sound good again... I just don't wanna waste any money on new tubes if it's not any good. Any information on this will be greatly appreciated.