How much drive power does the Argus require from the heading synchro source?
The Argus does not require any significant power. Unlike mechanical displays which must be physically turned by the receiver or compass repeater, the Argus is electronic. Connecting it across the output of a synchro presents a negligible load and requires only milliamps of current. (It is like connecting a nightlight to the same circuit that is already driving an electric range — there is hardly any additional current required.
