OK so you have all tempted me to get one and have a go at sorting it out when it hoots
It is advertised as 'superheterodyne radio teaching kit DIY training', I guess the training bit is getting it to work after building. It is coming by slow sampan so will take a while, I am going to build it in stages from back to front, testing each stage as I go. It can't be worse than the radio I have on the bench right now, works OK except FM where it picks up two stations at once but the funny thing is, it is impossible to detect the local oscillator when it has tuned into a station. Now this is going to be fun but should put me in the right mood for when the ZX921 arrives