Make
Hammarlund
Model
HQ-180AC
Year
1963-1972
Description
General Coverage Receiver. C model has clock option.
Freq Range
continuous coverage of the broadcast frequencies from .54 Khz to 30 Mhz. These frequencies are divided into six bands,
Tube Complement
| v1 | RF amplifier | 6BZ6 |
| v2 | 1st converter | 6BE6 |
| v3 | HF oscillator | 6C4 |
| v4 | 2nd mixer/crystal oscillator | 6BE6 |
| v5 | 455 Khz gate | 6BA6 |
| v6 | 455 Khz IF amplifier | 6BA6 |
| v7 | 3rd mixer/variable oscillator | 6BE6 |
| v8 | 60 Khz IF amplifier | 6BA6 |
| v9 | 60 Khz IF amplifier | 6BA6 |
| v10 | 60 Khz IF amplifier/AVC/AM detector | 6BV6 |
| v11 | SSB product detector | 12AU7 |
| v12 | Noise limiter | 6AL5 |
| v13 | BFO/signal meter amplifier | 12AU7 |
| v14 | 1st AF amp/delayed AVC clamp | 6AV6 |
| v15 | Audio power output | 6AQ5 |
| v16 | Voltage regulator | 0A2 |
| v17 | Crystal calibrator | 6BZ6 |
| v18 | Crystal oscillator | 6CW4 |