Hi I would check with gunrunner John on this forum he sells all kinds of different electronic circuits for many different controls and dcs etc! hope this all helps you out there easy to build circuits!
https://www.youtube.com/watch?v=VMXOj8cgv98
https://www.build-electronic-c...ts.com/jk-flip-flop/
https://www.aliexpress.us/item...;utm_term=electronic circuit learning kit&msclkid=5ce3957241bf1e0ce1e9f2aa0e92415d&gatewayAdapt=glo2usa
check this out !
Alan