14 pin SONY BETAMAX male connector
This is the 14 pin SONY BETAMAX male connector
A 14-pin connector cabling used by Sony, and other manufacturers in the 1970s. Be aware that several different cameras use the pins for completely different purposes, and that you should only connect equipment together that were designed to be connected together. The connectors, often, have + and − stamped on them instead of pins 13 and 14, which tallies with Sony's use of putting the power supply on those pins of the connector.