I would like to restore the original connections of an LS-3 army louspeaker that
I had modified many years ago, but I am unable to find the connection diagram on
google.

Inside the speaker there is a high-to-low impedance transformer, but I am not
sure whether both the low- and the high-impedance connections were brought to
the exterior. Also, I am not sure on whether one of both transformer windings
were connected to ground.

Can any one please let me know the original connections of the input
three-contact jack?

Thanks & 73

Tony I0JX