The 9-302 is a five tube, combination battery portable and AC/DC powered superheterodyne with a selenium rectifier. The batteries required are a 7 1/2V "A" and a 90V "B" battery; the original model Crosley battery was a CR68.

The tubes used in this set are:
1U5   Detector, AVC, 1^st. A. F. Amplifier
1L4   R.F. Amplifier
1R5   Mixer
1L4   I.F. Amplifier
3V4   A.F. Power Output