Just an update I ended up building a simple winding machine from an old battery drill to wind the coil. I thought I would have problems with the wire breaking as it was very fine only 0.08mm but didn’t have any problems with the wire breaking. The hardest part was starting and stopping the winding machine. I also ended up buying the wrong wire size twice ! as I did not realise that the wire diameter did not include the varnish but the varnish depth wasn’t specified so a bit of trial and error.
I fitted the rewound transformer and had a big increase in volume and also sensitivity for weak stations. Much better than linking out the transformer with the capacitor. All in all a good project and I’m really happy with the end result. It’s sounds good to me but would like to know if anyone agrees as not heard many 1930s TRFs to make a comparison with.
Unfortunately I don’t have any pictures just the video so if anyone is interested the coil winding is 15 minutes in.
https://youtu.be/v1eoND0OyhA
Thanks for all the help and advice I couldn’t have done it with all your comments.
Best Regards Chris