> On Aug 2, 2015, at 19:10, William Donzelli <[email protected]> wrote: > >> And some 1950s military radio manufacturers, who screen printed schematic >> diagrams onto cloth and stashed them inside the radios. > > If you are thinking about that early GRC stuff, that was silk!
Oh wow, I thought it was something like Rayon. -- Mark J. Blair, NF6X <[email protected]> http://www.nf6x.net/
