Nixie tube and other older tube calculators

Singer Friden 1162

This CRT tube calculator is one of the first calculators made by Singer in 1969 and has and has CRT tube display. It is an extended  basic calculator. It lights up and calculates, but gives unreadable display. I presume that the calculator has to be calibrated Serial number  01649.

This item  is in a good optical condition, only the plastic keyboard cover is partly broken at the bottom edges.

If you want pictures in a better resolution, don't hesitate to email me