This one looks like an NEC although at least the HOT is a
Toshiba tube. The tubes are typical US except the 17JZ8
was the common vert osc/amp in B&W sets. May be a Toshiba
chassis also but its been since about 1980 we stopped
most tube repairs. Age has not been kind to my memory !
Never liked working on tube Jap sets. With the exception
of some late hybrids most were worn out in a few years needing
lots of work. Add to that the unservicability & parts problems.
They sat on the incoming shelf along with GE sets the longest.
73 Zeno
LFOD !