[Amps] boonton 59

[carl s.]

   I have acquired a boonton 59 dipper. In looking at the innards I am
curious about the oscillator"tube"  !! The unit works fine on all bands ,
but if that osc. fails, where would anyone ever find a replacement ???  The
"tube" has no markings on it and the "megacycle meter " is connected
directly on top of the tube shell.
    Can anyone tell me anything about it ??
 thanks
 carl / kz5ca