Hi Myles
couple years ago I received this old amp from my music teacher.
I have no idea the year or model but I would guess 50's.
the brand is National.
It sound real clean but it used to shock me.
It only had a 2 prog plug.
I put in a 3 prong plug, connecting the ground to the
chasis. It don't shock me anymore, but I'm afraid something
else is the problem and this might be a dangerous fix.
also the tubes in this amp are not familiar to me
could this be a problem to replace them?
thanks myles any info
is helpful