Andymac84 Sr Member Jun 1, 2013 #1 Texas Exactra 20 Calculator, I got mine a few years from now on ebay. Nowadays the prices ran up extremely. Mine is in great condition. It is rumored that the inner circuits were also used in and on some SW props:
Texas Exactra 20 Calculator, I got mine a few years from now on ebay. Nowadays the prices ran up extremely. Mine is in great condition. It is rumored that the inner circuits were also used in and on some SW props: