On 08/02/2015 07:08 PM, Mark J. Blair wrote:
And some 1950s military radio manufacturers, who
screen printed
schematic diagrams onto cloth and stashed them inside the radios. The
schematics were secured to the inside of the radio with a length of
cloth ribbon, then folded up tightly and stuffed into a metal tube
secured to the radio chassis.
It wasn't uncommon to see the same thing in 30s-50s radios, with the
schematic pasted inside the cabinet.
For me, a zip-lock freezer bag works just fine.
--Chuck