Counter Shift Registers Dual 4-Bit Binary Counters 14-CDIP -55 to 125

Product Code: SN54LS393J

I've used one these ICs to make a simple tone generator, connect output to a loud speaker and input to a coil of wire for a simple inductive count shifter.

Counter Type:    Binary     Counting Sequence:    Up     Number of Circuits:    2 Circuit     Number of Bits:    4 bit     Package/Case:    CDIP-16     Logic Family:    LS     Logic Type:    Bipolar

Data Sheet Available 

Component difficult to obtain in the UK