Intermediate Frequency: 455kc/s
Frequency Bands: 2
Chassis Notes(most schematics can be clicked to download a full size version) ** Note that a service note from HMV shows that 'due to post-WWII shortages' alternate valves may be found in sets, as per the following:
6K8GT - ECH35
6K7GT - EF38, 6U7G
6Q7GT - EBC33, 6SQ7 (slight wiring alterations req'd)
6V6GT - EL33 (bias voltage decreased)
6X5GT - 5Y3G (separate 5V filament winding on power transformer req'd)
It also notes that some components such as ganged and fixed condensers, trimmers, padders and wave-change switches may be different although they also state that 'in no case has any modification been permitted to impair the efficiency or quality of the finished machine'.
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