I would have worked on some but the model dont ring a bell.
Sams shows all Philco 19C7 in folder 2600-2
Finding the Philco wont be easy. Philco was part of NAP ( North American Phillips). It also sold the same sets under Sylvania & Magnavox with
slight differences in trim. labeling & color. Philco is the hardest to find,
they sold the least of all 3. So you may want to look for a 19C7 chassis
in the other brands.
BTW I may have both the Sams manual and the factory training manual
for the C7. If interested PM me.....
73 Zeno
LFOD !