hifi engine

Tandberg TD20A SE rare variant

Hi there, wonder if anyone can shed more light on this machine.
Erase head has 4 sectors indicating 4 tracks and there are four
individual inputs and outputs similar to Teac 3340. Believed to
be a product of Tandberg UK. Phono ins (2 per channel) and outs.
Recently sold on ebay, but not to me!

thanks in advance

Arthur R