Hi,
Last year I built a simple SR latch circuit (with two NAND gates) to switch between two pair of speaker with relays, in my home studio. The latch circuit activated a relay + a LED in the pushbutton switch.
It works really well: when I press the first pushbutton, it lights up, and the audio signal is routed to the first set of speakers via relays. When I press the second pushbutton, it lights up and turns off the first, and the audio signal is routed to the second set of speakers. And vice versa... as a simple SR latch is supposed to do.
Now I have a 3rd pair of speakers, so I want to make a 3 way latch circuit that works just like the SR latch, but can't find any way to build it...
The only relevant information I found is this. But it's only a block diagram, it won't show how to do it. A couple of logic gates? Or a chip?
I've tried in a simulator with all sorts of combinations, 3 gates of 3 inputs of all sorts, but nothing worked. I'm pretty sure there's a way to do it, and I must not be the only one who tried this... But I can't get my head around this "logic puzzle"!!
What would be the simplest possible way to make a 3 way latching circuit, also called a "flip-flap-flop"?
Thanks in advance,
Last year I built a simple SR latch circuit (with two NAND gates) to switch between two pair of speaker with relays, in my home studio. The latch circuit activated a relay + a LED in the pushbutton switch.
It works really well: when I press the first pushbutton, it lights up, and the audio signal is routed to the first set of speakers via relays. When I press the second pushbutton, it lights up and turns off the first, and the audio signal is routed to the second set of speakers. And vice versa... as a simple SR latch is supposed to do.
Now I have a 3rd pair of speakers, so I want to make a 3 way latch circuit that works just like the SR latch, but can't find any way to build it...
The only relevant information I found is this. But it's only a block diagram, it won't show how to do it. A couple of logic gates? Or a chip?
I've tried in a simulator with all sorts of combinations, 3 gates of 3 inputs of all sorts, but nothing worked. I'm pretty sure there's a way to do it, and I must not be the only one who tried this... But I can't get my head around this "logic puzzle"!!
What would be the simplest possible way to make a 3 way latching circuit, also called a "flip-flap-flop"?
Thanks in advance,