Electronic rotary switch

53 electronic rotary switch Sooner or later, most types of frequently used multi-way rotary switches develop contact resistance instability or other malfunctions, either caused by internal oxidation or wear and tear of the rotary mech- anism. Broadly speaking, the same goes for multi-contact relays. It is, therefore, hardly surprising to en- counter the electronic, free-of-wear equivalents of the above devices; _a- way electronic switches and solid- state relays are at present available in a wide variety of contact arrange- ments. The circuit diagram shows the elec- tronic counterpart of a 16-way rotary switch whose pole is connected to earth. Two push buttons have been provided to enable the switch to be "turned" clockwise (up) or anticlock- wise (down). Debouncing bistables Ns-Ns and N7-N8 supply a stable low logic level to monostables Ni-N2 and N3-4 respectively in order that these can output approximately 3.5 kts long pulses to the relevant input of up/down counter IC,. The ri...