Hi - I love what you built. I wanted to know if I can buy the RCA chiptune jack or one like it? Id love to see it working IRL. Im not near Innsbruck atm but i

Hi - I love what you built. I wanted to know if I can buy the RCA chiptune jack or one like it? Id love to see it working IRL. Im not near Innsbruck atm but if I can buy this or a similar product that would be neat. Thanks!