Hi coracle i am i the process of re-building a DDS14 dynamo which will have a rewound armature if you would like to give me call on 01332 703630 i will give you the details of will be done.
Hi Nigel, There is a fair chance that you can buy a rebuilt unit 'off the shelf' from, Jim and Carolyn Brankin at Classic & Vintage Dynamos Ltd . email- classic_vintage_dynamos@yahoo.co.uk or phone them on UK ++44 (0)1623 747666. I have no financial connection but have used them for 20+ YEARS. Good luck. Keith Bedford