[ARC5] [Milsurplus] ARC-5 Receiver Question

[David Stinson]

Glass tubes were substituted for- and speced for, as you 
saw in the -GT markings- when available and approriate 
from about mid-war on.  
You see the reason in all kinds of sets: 
shortage of strategic metals.  
They switched nomenclature plates from plated brass, 
which expended two needed metals plus paint, 
to decals, fiberboard and/or aluminium.
Put an original TBYon the bench next to a TBY-8.  
Heat one of the joints with your soldering iron.  
You'll find the solder flows easily on the original TBY, 
but you have to really heat-up the joint on the TBY-8.
That's because they were short lead in the solder mix, 
which was needed to throw at the bad guys.
73 Dave S.