[ukcol]

I can see that an IF transformer designed to feed a low impedance load (i.e. a conventional diode detector) would be unsuitable for use with a high impedance load for the reasons already given. However, is there a need to design a special IF transformer to feed a high impedance detector? The set will already have a transformer designed to feed a high impedance load and that transformer will already have the appropriate Q and bandpass characteristics. I'm referring, of course, to the first IF transformer.

Perhaps I'm missing something vital here?