[John R]

Hello, Jay: I believe what you have is a model 1720 "Challenger." They were advertised as a 10 tube set at a 7 tube price.

The tube lineup for a 1720 is four-45s, one-6A7, one-37, one-75, two-78s, one-5Z3.

These sets have an "extended" broadcast band that goes (I think) to 1800KHz.

Hi,
The model 1720 is viewable at the Radio Museum site, shows a different dial scale setup, but other than that is real close. The 1725 uses a different cabinet so that's not it. The model 7065 uses the exact same chassis but cannot locate a pic of the cabinet so maybe it is still a possibility? All three models made in '33-34'. John