switch

Hello! Let me start by simply saying I need an amplifier switch and I don't know what that is, where to get one, or what to do with it. My father has a vintage sound system (turntable, tape deck, cd changer, huge stereo speakers) that hasn't worked in about a decade, but he won't replace it...

1) Steren BL-526-039 4X2 HDMI Matrix Switch This remote (check image) and manually operated switch has 4 HDMI In and 2 HDMI out ports. You can connect any IN port with any OUT port. This is maily helpful to people with multiple HDMI output devices (multiple TV, TV + Projector etc.) connected...

can anyone suggest some good quality RCA switch with around 3 inputs....i need it to connect my DVD player, set top box etc. to my TV which has only one RCA port.