Output meters for tube amps

HB27
HB27 Posts: 1,518
edited March 2011 in Electronics
I put together a nice pair of monoblock tube amps and I'm wanting to put some nice sweep meters on each amp for output. Kinda like the old SS Silverface and Carver receivers/amps used.
Most of those I've researched have a dedicated circuit I don't think I could adapt to my amps.
Anyone successfully installed some output meters on a tube amp/amps?
Thanks,
Harry