[Milsurplus] BC-347-A

[Unserviceable but Repairable]

A humble interphone amp that used a VT99 (6C8G?) who's heater ran off
28V thru a 10W dropping resistor.  Ho hum

But mine seems new & has an undrilled box.  I guess that was standard & 
'plane makers drilled 'em for gazintas/gazoutas as needed.  These same 
g/gs were soldered up to a jack bar inside.

Made on '42 WS contract.  "Gee dad, it's a Wurlitzer."