Cheers!  I bought this beat up 100 Watt Marshall Tube Amp back in the 70's.  I think it was 1972 but life was a bit of a blur in those days.  The cover was so torn up, i removed it and stained the wood to give it a bit of character.  Last time I fired it up it worked fine.  The fan is loud but it did the trick.  The fan appears to have been replaced.  I was an aspiring bassist thru high school and early college but got in a motorcyclye accident which put an end to that dream.  I won't go into the details but my fret hand had to be pinned together.  Regardless, I am retired now and would like to get back into playing.  I was wondering if you could tell me a bit about this amp?  I've attached a few pics for your enjoyment.  I'm moving and will fire it up again once i get relocated.  Thank you for your time.