01-11-2020, 01:22 PM
Not sure if you already saw this or not, but here is an old post that discusses someone else looking for that schematic. Not sure if they ever found one, but maybe you could try to contact them.
https://philcoradio.com/phorum/showthread.php?tid=866
Bill
https://philcoradio.com/phorum/showthread.php?tid=866
Bill