hi
A long time ago i guess it must have been early 80's radioshack sold a small time/temp module all you had to do was add power and prob and you had a nice led clock w/temp etc
i believe it must have been made by national semiconductor or maybe fairschild i don't remember
can't seem to google anything like it, i need either a place selling NOS or maybe there must be some simular replacement
greatful if anyone might know