Kurt,
I believe the Sun Super Tach (800 series, all electronic-no sender) was introduced in '66. They had a white needle and red shift point arrow. In '69 the face was changed to allow better illunimation of the color band and the needle was made red. (orange). I'm not sure how long that model was offered, but I'd guess through the late '70s until the Super Tach II was introduced.
They also continued to offer the SST-700 model through at least '69 which looked "similar" but required a sender. Any one that has
Super on the face is the fully electronic version.
Hope this helps.
Verne
