[Arran]

These sets are a bit weird, they don't use a conventional convertor tube they use a dual triode mixer oscillator tube called an XXD/14AF7, they also have an extra IF amplifier stage. A stupid question but is the band switch set on dial tuning instead of pushbutton tuning? There are three IF transformers, the first has two trimmers but the second and third ones have one trimmer each marked 29A and 35A respectively, the 455 kc signal should go into the antenna section of the tuning capacitor.
Regards
Arran