16 Feb 2006 #21 halcyon Well-Known Member Joined 20 Apr 2002 Messages 10,766 Location Cornwall Visit site Just change the lower nav switch for a SPDT version, saves all the bother of relays and diodes, and one less system to go wrong. Brian
Just change the lower nav switch for a SPDT version, saves all the bother of relays and diodes, and one less system to go wrong. Brian