[sdiy] diff between A and B CMOS

mark verbos mverbos at earthlink.net
Thu May 1 02:05:55 CEST 2008

When CMOS went from original A series to the B series, did the  
resistance of 4016 analog switches change? Did the voltage swing at  
the outputs of 4049s change?

I'm working on a quantizer module that was designed in the 70s and  
overhauled int he 90s with all new chips. The scale is now screwed up  
and I'm wondering if its because of the switch from A to B series in  
these chips.

Anyway, I'm going to install a trimmer where there wasn't one. I'm  
just curious really.


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