> On 2016-11-24, at 06:10, William Levak <wlevak@SDF.ORG> wrote: > > Looking at the schmatic, I find a note that it is good for 250442 and 250446 with the following changes: > > Component 250442 250446 > UD4 9602 74LS123 > R12 22K 15K > C31 33pF Eliminated > > It appears that the same PCB was used for two different assemblies. The problem is that 9602 and LS123 seem NOT to be pin compatible and I haven't noticed any patches on any of the 250442s I happen to have. Maybe the note means that the schematic is valid /also/ for 250442 and 250446 with the mentioned changes? Which file is the schematic in question? Could you share it? -- SD! Message was sent through the cbm-hackers mailing listReceived on 2016-11-24 13:00:01
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