Mena kaore i te whakaatuhia to waahi, tohua tetahi o nga e whai ake nei:
Texas Instruments
IC 8-BIT GEN/CHKER 24DIP.
ON Semiconductor
IC 16-BIT GEN/CHKER 14DIP.
IC GENERATOR/CHECKER 9BIT 14-DIP.
IC 9-BIT GEN/CHKER 14DIP.