The 1473 was a close cousin to the 1472/82 and he 1484 'TV' model amplifiers. Nicely spec'd for a portable compact bass amp; 25 watts of power, so it could hold down the bottom pretty well, 15 inch speaker, 4 inputs and 2 channels. Search as I may, I've never seen one of these amps. Thanks to Silvertone Mike, we've finally got a great look at this super-rare amp.

Available for one year, it is indeed a rare amp.

Introduced:
Fall/Winter 1961 at $99.95
as the 57G1473L

Retired:
Fall/Winter 1962 at $99.95
as the 57H1473L

Link: Schematic  available at Div57