Don from Don's Old Radio Shed YouTube channel reached out to me to help with with a open circuit speaker field coil from a New Zealand made Columbus model 90 radio. I was happy to help and offered to rewind it for him. I have returned the coil to him and he will fit it and test it. This video shows how I rewound it. Pop over to Don's channel to see if the rewind was successful. A link to Don's channel is below.

Buy me a coffee ☕:
https://www.buymeacoffee.com/DavidTipton (only if you want)

Don's YouTube channel:    / @donno308  

Don's Columbus Radio Part 1:    • COLUMBUS model 90 Made in New Zealand...  

Don's Columbus Radio Part 2 (with this coil):    • COLUMBUS MODEL 90 Made in New Zealand...  

I use Epidemic Sound for music and sound effects. Use the link below to sign up and I get a free month:
https://www.epidemicsound.com/referra...

Check out Carl's Capacitors eBay store for many radio parts and spares and the home of the all black capacitor. Once you've tried black, you can't go back: https://www.ebay.com.au/str/vintageco...

Don's Old Radio Shed YouTube Channel:
   / @donno308  

The radio Mechanic Channel:
   / @theradiomechanic9625  

Radio Cruncher Videos:    / radiocruncher  
Radio Cruncher Live:    / radiocruncher  

Marko Delac - Delatsch Channel - Transformer Rewinding:
   • Practical Transformer Winding Tutoria...  

Corrien Maas - Grill cloth weaver Netherlands:
https://www.corrienmaas.nl/

The Code Machine Schematics - Mike:
https://thecodemachine.co.uk/Schemati...

RetrObright:
https://en.wikipedia.org/wiki/Retr0br...

My Signal Tracer:
https://www.distrelec.biz/en/signal-t...

My Digital Signal Generator:
The Signal Generator is a project kit from a local electronics magazine called Silicon Chip, there is a sister publication in the UK called Practical Electronics, it was featured in the April 2018 edition but mine has a oscilloscope function as well which I don't use. There may be a later edition in PE with that feature.
Here are the links:
Aus: https://www.siliconchip.com.au/Issue/...
UK: https://www.electronpublishing.com/pr...

Music I use: Bensound
License code: 6U7L8JWQTLPNCGGR

Music: www.epidemicsound.com