Binary-coded decimal to binary digital input modification of a popular digital delay module

Abstract

A simple modification is described for converting the digital program code format of an Evans Associates model 4145 programmable time delay module from binary-coded decimal to binary. The modification results in a delay module which is more easily interfaced to a computer, has a greater programmable delay range with equivalent temporal resolution, and requires less power. Similar modifications are expected to have the same results on the models 4145-1 and 4146 modules.