Batboard

When where the TCN-6000 series heads used? and what radios was it used on? It has the octal plug sockets on the back. Thanks in advance.

TCN6000 is the base model T-Power style die cast head. They were introduced in (approx.) late 1958 and are primarily associated with the T-Power line although they were also supplied with the Twin-V mobiles sold after that year. T-power equipment was produced through about 1964.