In this circuit, the MC14553B controls the most significant (leftmost) value of the thermometer display. Lastly, the HEF4511B BCD to 7-segment BCD decoder is coupled to the MC14553BCP 7-segment ...

Ray Enterprises, the maker of a universal remote called Ray Super Remote, laid off all of its employees and stopped selling its device late last year, according to Variety. The $250 gadget, which ...

Power for the circuit is provided with a 5 volt linear regulator driven by a common 9VAC wall transformer. To get the -5VDC required by the muxes, a Linear Technology LTC660 inverter is used.