The Harmony H818 and H819 were 2 Explorer based designs released sometime in the late 1980's. The H818 had 2 passive humbucker pickups with individual volume controls for each pickup, and a tone control, and a 3-way switch. It also featured a quasi-locking tremolo system. The H819 was a 3 active humbucker guitar with the same locking system and some built in effects. Both guitars seemed to come, most often, with a black finish with a red pinstripe around the edges.