Hi elekie&ac Doctor

And thanks for the reply.

I guessed that the two large terminals would be the high current connectors and the D terminal probably for the charge warning light, but the small terminal (also B+) completely threw me. The interesting thing is that many decades ago before the internet I was a Radio Ham and we used to strap a very crude suppressor (capacitor and resistor for the time constant) across our morse key contacts to prevent “key clicks”, your post brought it all back!

So once again many thanks for an informative, specific and precise reply, (they are so rare these days!)

Bazza353