I am implementing a circuit proposed by Chris in which a 555 IC feeds its output to a decade counter, 4017B IC. The output of the 555 looks as expected, but nothing shows up at the output of the 4017. As suggested by Chris, I have CLK (pin 14) and Vss (8) at GRD, 12 VDC at Vdd (16), the output (pin 3) of the 555 going to CLKEN (13) of the 4017, and I am looking output 1 (pin 2) of the 4017. I see nothing on the scope.
Any ideas as to what may be wrong? Perhaps CLKEN should be grounded and the input put to CLK?
One thing I notice is that the NTE 4017B has a "notch" depression at one end and a "circle" depression at the other. I am assuming that pin 1 is at the end where the notch is.
TIA
Ed