My service manual for my BM3000-2 says to adjust idle current for 100ma.I am not entirely clear on where to measure the current at.Can I just measure voltage across the .15 ohm emitter resistors,which would be 15mv?

Exactly.
That's the easiest way.

I would recommend you replace the trimmers if not already done, they are often badly oxidized and/or physically broken.

Martin

Thanks Martin

I was thinking of just cleaning the trimmers,but you are right,I might as well just change them.

Paul