ELECTRODYNE 24V ADJ REGULATOR FOR E-SERIES MARINE ALTERNATORS, P/N 243-6-24.

The regulator is designed to automatically maintain the current and/or voltage output of an engine generator within specified limits, regardless of variation of load or input voltages. Must be used with an alternator where a.c. can be tapped off one phase winding. This is not a problem with ElecTroDyne® alternators. With other brands of alternators, the tapping may be more problematic. 

*122H6*