This is the inside of the transmitter room at Vung Tau.
After my stint a barman at the Sandbaggers Inn I went to Tech Troop. One of the first jobs I got involved in was to bring the transmitters down from Nui Dat and install them at Vung Tau. Once that was done I became part of the team operating the transmitters and stayed in the job for the rest of my tour.
Our 3 transmitters are at the far end of the room. Oscillator banks at the right.
It was probably highly illegal taking this photo, but I won't tell anybody if you don't.