After reading some information on this satellite and the fact that its transmitter had become active again, I made some preparation to see if I could receive this flying museum piece.
LES-1 is launched from Cape Canaveral on February 11th 1965.
Below the results from my reception attempts on December 12th 2015 at 09:11 UTC
Reception (SDR# and an Airspy).
An AF audio recording can be found at LES-1