Martin,
For some reason I was not receiving notifications from this thread. Sorry.
So, no. That meter range would be too high and you would barely see a needle move at the currents these amps pull.
I used this one:
http://www.partsconnexion.com/CONNEX-75111.htmlThey also have a square flanged one of the same reading if you like that look better. Round fit my top panel better.
Yes. If you are doing dual meters
without the switch then pin 3 of each tube
socket goes to the positive of it's respective meter. Then just wire the individual meter (-) negatives back to the socket holes for their respective pin 3s on the board.
So you will not need to add any components. They are already part of the ZKIT-1 board.