[sdiy] 4016 madness

[Harry Bissell]

a 15V and -5V supply would be beyond the safe limits for this chip... they are usually spec'd at 18V max...\
Maybe using one manufacturer's chip was because through testing they found that one was a little better in that
regard. I think the ABSOLUTE max is 20V, but I'd never want to go there...

H^) harry



----- Original Message -----
From: Barry Klein <barryklein at cox.net>
To: mark verbos <mverbos at earthlink.net>, Synth-DIY at dropmix.xs4all.nl
Sent: Sun, 06 Mar 2011 00:16:21 -0500 (EST)
Subject: Re: [sdiy] 4016 madness

I have like 4 4016A's and a couple 4016's National (no "B").
But not driving to LA unless I am significantly bribed.
I am in Trabuco Canyon, south OC.

Barry
----- Original Message ----- 
From: "mark verbos" <mverbos at earthlink.net>
To: <Synth-DIY at dropmix.xs4all.nl>
Sent: Saturday, March 05, 2011 12:38
Subject: [sdiy] 4016 madness


> Hi there!
>
> I'm in the middle of some strange analog switch behavior. I have a buchla 
> module that used an MC14016 in it's oscillator core. It is also switching 
> between waveforms with the other 3 switches. It is powered from +15 and 
> a -5 made from resistors on the -15 and ground. Things are acting funny, 
> so I replaced the switch with a CD4016B and the oscillator stopped 
> working. I put in an NTE4016 and still no oscillation. Both of these chips 
> were showing about +5 as the negative rail. I put back in the old chip and 
> the oscillator started again. The negative power rail went back to -5.
>
> The schematic specifies the Motorola part number MC14016. I have never 
> seen Don specify a Motorola CMOS switch. I don't know if the issue is that 
> it's Motorola or an A vs B series thing.
>
> I'm in LA right now and can't go home without figuring this out. Does 
> anyone have a Motorola MC14016 (not B) in the LA are that they can float 
> me? Any words of wisdom? Thanks!
>
> Mark
>
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-- 
Harry Bissell & Nora Abdullah 4eva