Hi Everyone,

New to the forum as I need some help..... 
Manufactured in the 1970's I have had this little Vox amp a long time. Saying that for a number of years it has sat in the corner in the room and the last time it was switched on it worked. Of course it doesn't now.  I can a hear very faint hum from it. And I mean really faint. I have to put my ear against the speaker cloth to hear it. Other than that there is no sound at all. I have done some basic troubleshooting using a DVM.

Checked input jacks - ok
Checked speaker - ok
Checked voltage output from transformer - ok
Checked PCB fuse ok.
Checked output from bridge rectifier - ok I think. Getting to the limit of my knowledge.

So, I think the problem is on the PCB. I have inspected it and I can't see anything obvious i.e. Component damage, dry joints etc.
I could take it to some repairer but I don't think it would be cost effective.

Anyway, here is the question -

For the components on the PCB which ones are the most liable to fail to end up with no output all?
I'm just thinking of replacing some of the components as they will be cheap and I'm not too bad with a soldering iron.
It's old school electronics so it shouldn't be too difficult to solder in new components.

I did manage to find a schematic of the PCB but I haven't done much troubleshooting of PCB's before.

Anyway, If anyone has any ideas how I can bring this little old amp back to life I would appreciate it.
Thanks,
Steve