High Fidelity Amplifier Kit (Rev. 4)
| Brand | Heathkit |
| Manufacturer | Heath Company |
| Function | Amplifier, Power (Kit) |
| Produced | 1948 |
| Country | United States |
| Signal Path | Analog Hardware |
| Weight | 20lbs (Shipped) |
| Power | 110VAC, 60Hz |
| Frequency Response | 35Hz-13kHz ±1dB |
| Output Power | 25W |
| Impedance Load | 3-8Ω |
| Tube Complement | 1619 (6L6) (x2), 6SL7, ?? |
| MSRP (1948) | $14.95 |
| Channels | 1 Channel |
| Notes | Changes to transformers, tube complement and revision of chassis layout. |