Hello, I ask for your wise help! I need something "like a multiswitch" controlled by an electrical signal. I'll try to explain: I need to connect a 2 terminal device to another 2 terminal device (but the last one must be selected from n (aprox. 30) 2 terminal devices. Only one of the n devices must be connected to the main 2 terminal device in a moment. I know that can be made using transistors as switches, but I believe that there is a better solution. What is the cheap and less trouble approach? I attached a simplistic schematic in order to illustrate my problem. Thanks in advance!