Is it a monochrome set ? If so no G-2 control. Most CRT's
probably use the same basing & apx voltage. Start with the
original tube & write down the voltages. Then do the same
with a new one. IIRC the Tandys used a modified RCA B&W
Get some nudies & maybe we can figure out the chassis or see
if its got a KCS### stamped on the chassis.
73 Zeno
LFOD !