RODALCO
Well-Known Member
By seeing that there is a lot of interest in TTL technology I will put some schema's on this forum re the building of TTL clocks.
I have to go through my old notes as well but I'm more than happy to help anyone out.
I'm old fashioned in a way that i like the older technology a lot more than the newer PIC IC's which are capable of a lot more for less work I guess.
TTL is robust, power hungry but very reliable.
At home i have various TTL clocks running well over 15 to 20 years with no problems whatsoever.
**broken link removed**
divide by 24 circuit.
**broken link removed**
divide by 12 circuit, for people who like the AM, PM system.
Both circuits can be built with two 7490's and one (½) 7400 IC.
I have to go through my old notes as well but I'm more than happy to help anyone out.
I'm old fashioned in a way that i like the older technology a lot more than the newer PIC IC's which are capable of a lot more for less work I guess.
TTL is robust, power hungry but very reliable.
At home i have various TTL clocks running well over 15 to 20 years with no problems whatsoever.
**broken link removed**
divide by 24 circuit.
**broken link removed**
divide by 12 circuit, for people who like the AM, PM system.
Both circuits can be built with two 7490's and one (½) 7400 IC.