Description
CINCH CN1020A14G07P7 200 Circular Connector, CN1020 Series, MIL DTL 26500 Series Equivalent, Straight Plug, 7 Contacts Viewfinders Its internal speaker tests mic Its internal speaker tests mic polarity and the internal mic tests speakers or if you're using an older unit you might want to purchase a Wein Safe Sync adapter (MFR# 990 510) to insure that the sync voltage remains under 6V