Hi there,
I've tested the tuning capacitor, and the rotor is well grounded, so no quick win there, for my lack of MW tuning and selectivity
I've updated the circuit diagram as well as I could by hand, the latest is attached. I believe this to be a true reflection of what that chassis is.
I'll probably do more physical fiddling with it at the weekend, but if any one has any other comments on this diagram though, please feel free to post.
Thanks
Tam