[sdiy-interim] CMOS 4001A source?

[Paul Perry]

The question is, how is it being used?
If CMOS logic chips are being used as logic
chips, then there is probably no trouble - but if they are 
being used in some unorthodox way, say as part of
a cheap VCA, then undocumented differences between
manufacturers might catch you out.

The ETI4600 required a particular brand of CMOS chip
for example.

paul perry Melbouren Australia

----- Original Message ----- 
From: "John Loffink" 

> Thanks.  So it is just a part number change apparently, from 4001A to
> 4001UB.  Are there any differences between those part numbers?
> 


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