Mk II. This AC Mains valve (lw & mw bands), was made in 1955, as a modification
to the earlier "classic" model of 1950. The main difference between
them, was that the earlier model employed larger output & rectifier valves,
thus making the cabinet "blistering hot" for the user to handle, and
hence it's nickname, the "TOASTER" set !. The later model operated
a lot cooler. valve line-up 6BE6, 6BJ6, 6AT6, 6BW6, & 6V4.