After doing a little research it looks like it may indeed be from a Compton organ, specifically the Melotone. Here is what may be the service manual for it, which includes schematics from which your tech may be able to determine how to modify it into a stereo amp:
http://www.stancurtis.com/PDFs/COMPTON%20MELOTONE%20MANUAL.pdf
Part numbers for the transformers appear to be listed on the last page, but the manufacturer is not indicated.
Hope that helps. Regards,
-- Al
http://www.stancurtis.com/PDFs/COMPTON%20MELOTONE%20MANUAL.pdf
Part numbers for the transformers appear to be listed on the last page, but the manufacturer is not indicated.
Hope that helps. Regards,
-- Al