> http://staff.washington.edu/rrcc/uwweb/1902A/1902a-1.jpg Can anyone with a 1902A tell me what IC part number IC252 is? Some form of hex open-collector invertor most likely, but exact details (type of 74 series logic, schmitt trigger or not etc) would be useful. D246 and R270 do something strange to the input (I think they equalise rise and fall times) and I would like to know what type of gate they drive. Richard Message was sent through the cbm-hackers mailing list
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