[Harp-L] How did i do it?Just lucky?

["hazcon" <hazcon@xxxxxxxxxx>]

A lot of years ago when I first got into (blues)Harp I was pretty broke and 
so had no way of buying a nice valve amp.So what I did is buy an cheap old 
second hand Valve Radiogram* take the amp out of it and (heres the odd bit) 
in my ignorance of all things electronic I ditched the turntable pickup and 
then I hardwired my mike to the pickup leads.(Mike was,is, a CM 520 bullet)
  It worked!
              This thing had huge old valves in it and for a year or so 
gave me good service and a real nice tone.
Now was I just lucky here or is this a feasible option on just about any old 
valve radio amp?
             Reason I ask is that a friends granddad has an old Radiogram 
for sale and id like,out of curiosity, to try the same thing again.Trouble 
is they are no longer cheap so i'd like some idea of my chances of success 
if possible.
*I'm not sure if Radiogram is the term used overseas.Here in NZ it was a 
nice timber piece of furniture with a Radio , a turntable and usually some 
storage space for the records.Every living room had one but now they  are 
quite hard to find.
             I know a little more these days about electronics,well enough 
to know that I could electroplate myself if I do something wrong ;-)
Rick
in NZ