Have you contacted Don White (CVRS schematics service – free to CVRS members):
The CVRS offers a free copy service for Radio College of Canada (RCC) schematics (only) to members currently in good standing. A pdf file of an RCC schematic can be obtained by emailing Don White, with the manufacturer and model number of a radio made in Canada between 1927 and 1980.
Members wishing a printed copy of a schematic should send a SASE (self-addressed, stamped envelope, Canadian postage) to:
10271 Algonquin Drive
Richmond, BC V7A 3A5
If you wish to make sure that an RCC schematic for your radio exists before sending a SASE, email Don at the above address.