Hi again, Kam.... Is there a chassis number on it? Silvertone sets had a chassis identification number which also identified the manufacturer. Look for a three digit number followed by a decimal point and more digits; this will be the chassis number. Wih this info, I can look it up in my Rider manuals.

If there is no number on the set, post the part numbers of a few large components (power transformer, volume control, etc) This may help identify it.