W-5M
| Brand | Heathkit |
| Manufacturer | Heath Company |
| Function | Amplifier, Power (Kit) |
| Produced | 1955 |
| Country | United States |
| Model ID | W-5 |
| Signal Path | Analog Hardware |
| Weight | 26.5lbs |
| Power | 105-125VAC, 50/60Hz 140W |
| Frequency Response | 10Hz-100kHz ±1dB |
| Output Power | 25W |
| Maximum Average Power | 32.5W |
| Peak Power | 47.2W |
| Impedance Load | 4/8/16Ω |
| Damping Factor | 40 |
| Feedback Factor | 18.1dB |
| SNR (250mW) | 80.2dB |
| SNR (5W) | 84.2dB |
| SNR (25W) | 99dB |
| Output Tube | KT-66 |
| Tube Complement | KT-66 (x2), 12AU7 (x2), 5R4GY |
| Finish | Satin Gold and Satin Black |
| MSRP (1955) | $59.75 |
| Channels | 1 Channel |