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Valve Radio and Audio Repair Handbook by CHAS MILLER

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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.

ACEkHz
RG3470
RG5427
RG6427
S6125
SH6125
RG7427
RG8470
RG9427
AW35470
AW53427
AW53B427
AW73427
AC85470
AW94427
AW115470
AW563427
AC939450
A50465
AERODYNE
Aerogram125
Aeromagic125
Cardinal125
Falcon125
Silver Wing125
Swallow125
42125
47125
50125
53125
54465
56125
58125
63465
73125
100117.5
105465
110117.5
115465
135465
290465
291465
295465
300117.5
301 AC460
302 AC/DC460
305117.5
ALBA
AC superhet473
5 V Bat. ...

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