I seen a post for replacement chips on this forum in the past and have 2 questions
First it was stated
Z15 original 7432. Can use 74LS32 or 74HCT32. ( original was actually sn74h21n) is these still the correct replacements?
Second it was stated
Z8 Original 7402. Can use 74LS02 or 74HCT02 ( original was actually sn7404n) is these still the correct replacements?
Thanks in advance for clearing this up for me....