In 1965, electric guitars were connected to their respective amplifiers with electric coaxial cables. This featured a single copper wire covered in a plastic sheathing which was then wrapped with a braided wire. Covering this a plastic covering that may or may not be shielded against electronic interference. At each end were phono jacks, connectors similar to the ones that old-time telephone operators used to plug in their consoles to take calls. And this is still the case.
However, not all cords were created equally. For example, the cord that came with my Kent bass was a single unit where the connectors and the wire were clad in vinyl. The wire was folded to fit in the bag and it never quite straightened out when in use. It sort of zip-zagged back to the amp.
The next was the cord with connector that attached by little screws. These were better because, if the cord stopped working – or worked intermittently – then you could unscrew it and solder the connection. In those days the Japanese were about as good at making cords as they were my Kent bass and so this happened often. One little jerk on the cord and the buzzing started.
The “cool cord” was the “curly-cue” which was like a telephone cord. This made things easier for the basic choreography the good bands used, especially on a cramped stage. The cords expanded and contracted like a telephone cord. And like a telephone cord they also got tangled and suffered from connector fatigue in the same way the ordinary cords did. This was easy to tell because of the crackling noise made from short-circuits.
Mike cords also suffered maladies. This usually happened when the stand fell over and stretched the cord. We used (again Japanese) a weird variety of ones which had batteries to power them. The feedback could be unbearable because the mikes were plugged into the amplifiers which were behind us. PA systems were a dream away. The king of the microphones was the Fender, because it came in a hard-shell case. These were $50 a pop. There were others ( Sennheisers, Shure, etc.) but we never heard about them because B.C. Electric or Bill’s T.V. and Radio never stocked them. Just Japanese stuff like Armaco.
Another guitar cord was the braided string one that my grandfather had on his Gibson L-5. It is hard to believe people actually stood all night with a thin rope burning into the shoulders.