Dodgy AMBrc / Servo connector terminals? Where to find?

[Fiddybux]

Hi,

My AMBrc transponder has a dodgy connection at the plug end, and it needs replacing. Trouble is don't know the following:-

1. What are the servo connection terminals known by? Is there a trade name / make / brand?

2. Is there a special crimping tool to make a tidy and easy job of it? Also where can I get this? Nothing obvious at Maplin.

3. Is it just worth having it sent off for repair instead? If so, where? There are places abroad, but is there anywhere in the UK?

Thanks in advance for any assistance.