Appendix 1
Intermediate frequencies
This list covers models going back to the first commercial superhets and has been submitted, where possible, to the makers for checking. Frequencles thus: 465, 473, are alternatives, but 123–127 indicates the circuits should be staggered over the band indicated. Sometimes the frequencies for each circuit in a ‘staggered’ set are shown thus: 127–123–123–127.
| ACE | kHz |
| RG3 | 470 |
| RG5 | 427 |
| RG6 | 427 |
| S6 | 125 |
| SH6 | 125 |
| RG7 | 427 |
| RG8 | 470 |
| RG9 | 427 |
| AW35 | 470 |
| AW53 | 427 |
| AW53B | 427 |
| AW73 | 427 |
| AC85 | 470 |
| AW94 | 427 |
| AW115 | 470 |
| AW563 | 427 |
| AC939 | 450 |
| A50 | 465 |
| AERODYNE | |
| Aerogram | 125 |
| Aeromagic | 125 |
| Cardinal | 125 |
| Falcon | 125 |
| Silver Wing | 125 |
| Swallow | 125 |
| 42 | 125 |
| 47 | 125 |
| 50 | 125 |
| 53 | 125 |
| 54 | 465 |
| 56 | 125 |
| 58 | 125 |
| 63 | 465 |
| 73 | 125 |
| 100 | 117.5 |
| 105 | 465 |
| 110 | 117.5 |
| 115 | 465 |
| 135 | 465 |
| 290 | 465 |
| 291 | 465 |
| 295 | 465 |
| 300 | 117.5 |
| 301 AC | 460 |
| 302 AC/DC | 460 |
| 305 | 117.5 |
| ALBA | |
| AC superhet | 473 |
| 5 V Bat. ... |
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