Hella Indicator Switch Repair parts, Late DB4, DB5 & DB6, See SSB 140 dated Oct 1967, most floppy indicator / headlamp dip switch problems are caused by one or more of the 3 little springs being broken, these springs are in stock although a little fiddly to fit.

Return Springs Part No. 55.37.852 x 2 (short springs)

Balancing Spring Part No. 55.37.853 x 1 (long spring)

Also fits other cars from the 1960s..