Help Identifying Component from guitar amp
The capacitor (50uF/6.4V aluminum electrolytic) looks a lot like a Philips part except for the beige sealant on the left (positive) end (they stopped making that kind of component decades ago, I believe Vishay picked up the line or was spun off). Maybe a long life version or one made by another company. The use of a comma rather than a period as the radix point most likely indicates European design.  

You need to put the replacement in the same polarity as the original was or bad things will happen. The negative side is the one with the black ring. Hopefully you made note of that (e.g. by taking a photo) before hacking the part out.