| Signal Path | Analog Hardware |
| Dimensions | 34.3 × 11.4 × 15.2 cm (W × H × D) |
| Weight | 8lbs (Shipped) |
| Power | 105-125VAC, 50/60Hz 25W |
| Frequency Response | 20Hz-20kHz ±2dB |
| Tuning Range | 88MHz-108MHz |
| IF Frequency | 10.7MHz |
| Output Voltage (Fixed, 30% Modulation, 20µV Signal) | 0.5V |
| Output Impedance | 600Ω |
| Sensitivity (20dB Quieting) | 2.5µV |
| Sensitivity (30dB Quieting) | 3.5µV |
| Sensitivity (Maximum/45dB Quieting) | 25µV |
| Image Ratio | 45dB |
| AFC Correction Factor | 75kHz/V |
| AM Suppression | 25dB |
| THD (1100µV, 400Hz, 100% Modulation) | 1.5% |
| IMD (60Hz:6kHz, 4:1, 1100µV, 30% Modulation) | 1% |
| Finish | Charcoal Grey and Ivory |
| MSRP (1961) | $69.75 |
| Channels | 1 Channel, 2 Channel (Stereo with addition of AC-11 Multiplex Converter) |
| Links | Predecessor: FM-4 · Kit: AJ-31 |
| Notes | Factory assembled AJ-31 |
