So the amp is an old fender bassman export (bassman 50).

This is in fact a picture I made after all of the work was done. I forgot making pictures of the state it was in when it got here. But it was just so realy bad.
This thing had been sitting in the attic for years. It even had mice droppings in it. The owner recently tried it, but he told me there was no sound, and he saw sparks coming out of the tubes.
It was equipped with RCA tubes, but they were just soo bad.
I think pictures say more than words.

Just look at the amount of dirt on the glass, and yes, most of the time it's not recommended to use power tubes that broke in two.

The preamp tubes had little cracks in the glass too.
So I began removing all of the tubes, and then checking the internals. The following picture is from after the work had been done.

With an amp of this age, it's the best thing realy to replace the electrolytic caps. (yes, the things that look like batteries). As for the film caps, they can handle time pretty well. The fat electrolytics just go bad over time. This one had the good old mallory caps, but they were in such a terrible state.. So I changed them for new ones. I marked them in the following picture.

Marked the 'work zones' in the next one.


These make up the power filter, so they constantly have to handle the high voltage.

The caps are hidden under a metal part that goes on top.
So, thats about everything I have pictures of. I had to do some other things like replacing a resistor that was broken in half, change a tube socket that was burned, and replaced the inputs as they were quite rusty.
If you have any questions, i'd like to answer them.
And yes, please keep in mind when you decide to work on your own amp, that these cute little things can store enough current to kill you even when they are turned off.