[Ron Ramirez]

Does not JIVE.

Definitely not! The 90 with 2-47 outputs uses the same type of autodyne oscillator circuit as the 71, 91, 19, 89 and a few others. Yup, the very same circuit that has made many a young man's hair turn gray.

That circuit must have the 700 pF cap (13) and a 10K (or better yet, an 8.2K) resistor in place of the factory-designated 15K (14). The det-osc tube (24) will not oscillate without the 700 pF cap, and it most assuredly will not work with a 56K in place of the 15K.

3615-AJ - part (9) on schematic - should definitely be dual .05 uF, not dual .09. I see the schematic on my site erroneously states .09 uF, as does the Rider data (which is the factory data from Philco).

Another "OOPS" moment brought to you by Philco.