[sdiy] diff between A and B CMOS

[anthony]

It's funny I see 'A' series chips specifically specified sometimes, usually 
a 4011A in some type of oscillator circuit.

I have several RCA 4016A's that were in an old precision DMM...


----- Original Message ----- 
From: "mark verbos" <mverbos at earthlink.net>
To: "Synth DIY" <synth-diy at dropmix.xs4all.nl>
Sent: Wednesday, April 30, 2008 8:05 PM
Subject: [sdiy] diff between A and B CMOS


> 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.
>
>
> mark
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