Originally posted by Scanogram The meter is different in that it has 3 LED's in the viewfinder, a green LED indicating good exposure and a red LED above and below showing + and -.
What you describe sounds familiar, though its heritage would not be traced to the K1000. IIRC, these were Asahi/Pentax prototypes for a LED-driven manual exposure display such as in the MX. As noted above, photographs of the bottom, top, and camera interior would be helpful. It would also be nice to see the battery holder (1 vs. 2 cells)
Steve