[Andrew B]

All taken on board Synchrodyne, I believe we have discussed suppressor grids in another topic, probably concerning suppressor grid modulation.. It appears that the driver has sufficient output to trigger the ALC limiter action, this being derived from a pair of diodes in the grid circuit to the PA's, it may suggest that the grids are beginning to draw current, although how to go about measuring the PA grid current eludes me, perhaps Synchrodyne has a suggest of how to do this?

Thanks
Andrew