Where did my 12V go?

[CapeLandy]

Hi All

Series III 2,25 P
I took out my alternator to have it checked by a specialist because I was worried that it always takes a few seconds under quite a few revs to jump from 11V up to the normal 12,5 to 13 V when first starting her.
Also at idle the volts drop to 11 or so even with no major current drawing. The guy told me that it's charging fine and that Lucas need 3000 r/min to allow field voltage etc.
Hope he is right and I don't bugger my brand new Willard.

Also noted that after I unplugged my alternator plug, all my ancillaries are stone dead. No ignition no nothing.
Is this normal or is there something suspicious.
Appreciate some technical advice.
Thanks
James

[Blknight.aus]

your electrics might be wired up off of the alternators secondary output so that you cant flatten your main battery if you accidentally leave them on.

I used to wire them up that way on the alternators that had secondary outputs as it was a dirt cheap way of doing a dual battery setup.