[sdiy] Quad VCA design

[David G Dixon]

Well, it's not exciting, like installing a 78L05 backwards (the flat face of
the TO-92 package literally blew across the room -- it could easily have
taken out my eye had I been staring at it up close).  When 2164s self
destruct, there's no outward sign (except overheating, perhaps).  They just
cease to work, and any circuit with them in will give off a high-pitched
whine.


> Self-destruction! And I thought this thread was going to end 
> up boring ;-)
> 
> On Wed, May 15, 2013 at 6:30 PM, David G Dixon 
> <dixon at mail.ubc.ca> wrote:
> > I have used V2164 in virtually every module I've designed 
> in the last 
> > three years, and it's brilliant.  It has its quirks (you 
> will get very 
> > familiar with the fine print of the datasheet, especially 
> if you try 
> > to do unconventional stuff with it), but it is a solid performer.  
> > Just don't try to power it up backwards.  Unlike most 
> opamps, it will 
> > self-destruct instantly (as would the SSM2164).
> >
> >
> >> http://www.smallbearelec.com/servlet/Detail?no=737 - $3.50 
> singles // 
> >> comes down quickly from there in multiples..
> >>
> >> On 15/05/2013 16:11, Terry Shultz wrote:
> >> > Hi Damian,
> >> >
> >> > Any cost idea on small volume usage?
> >> >
> >> > Regards,
> >> >
> >> > Terry
> >> >
> >> > Sent from my iPad
> >> >
> >> > On May 15, 2013, at 7:15 AM, "cheater00 ."
> >> <cheater00 at gmail.com> wrote:
> >> >
> >> >> Hi Terry,
> >> >> people here really like the CoolAudio chips. The V2164 has
> >> met with
> >> >> great reception on the list and is a very good equivalent
> >> to the SSM
> >> >> 2164.
> >> >>
> >> >> Cheers,
> >> >> Damian
> >> >>
> >> >> On Wed, May 15, 2013 at 2:39 PM, Nathanael King 
> >> >> <nate at paperproductsmusic.com> wrote:
> >> >>> Not only does THAT have the 2180 line, but they also have
> >> an ssm2164
> >> >>> available in 2 vcas (2162) in a surface mount package.
> >> >>>
> >> 
> http://www.thatcorp.com/2162_Dual_Pre-Trimmed_Blackmer_IC_Voltage-Co
> >> >>> ntrolled_Amplifier.shtml
> >> >>>
> >> >>> Nate
> >> >>>
> >> >>> On Wed, May 15, 2013 at 8:33 AM, Terry Shultz
> >> <thx1138 at earthlink.net> wrote:
> >> >>>> Hi All,
> >> >>>>
> >> >>>> I have finally used the last of my SSM2020 devices on my
> >> boards and
> >> >>>> it is time to re-design the Quad VCA and Universal
> >> Active filter modules.
> >> >>>>
> >> >>>> I was looking at the LM13600/LM13700 and THAT Corp. 
> VCA devices.
> >> >>>>
> >> >>>> Any thoughts on those devices vs. other methods of
> >> building a Solid
> >> >>>> VCA design?
> >> >>>>
> >> >>>> I have not had to re-build these modules for over 25 
> years, so I 
> >> >>>> get to explore a whole new analog approach again.
> >> >>>>
> >> >>>>
> >> >>>> I will not use the Grey Market SSM's if I can help it, but 
> >> >>>> Rochester Electronics seem to have SSMSSM 2014/ SSM2018,
> >> SSM2122 devices.
> >> >>>>
> >> >>>> Any thoughts?
> >> >>>>
> >> >>>>
> >> >>>> Terry Shultz
> >> >>>> thx1138 at earthlink.net
> >> >>>>
> >> >>>>
> >> >>>>
> >> >>>> _______________________________________________
> >> >>>> Synth-diy mailing list
> >> >>>> Synth-diy at dropmix.xs4all.nl
> >> >>>> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
> >> >>>
> >> >>>
> >> >>>
> >> >>> --
> >> >>> Nate King
> >> >>> Paper Products Music
> >> >>> _______________________________________________
> >> >>> Synth-diy mailing list
> >> >>> Synth-diy at dropmix.xs4all.nl
> >> >>> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
> >> > _______________________________________________
> >> > Synth-diy mailing list
> >> > Synth-diy at dropmix.xs4all.nl
> >> > http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
> >> >
> >> >
> >>
> >> --
> >> BugBrand LTD
> >> UK company No. 07199808
> >> VAT No. GB 988 2629 57
> >> 1 Ninetree Hill
> >> BRISTOL BS1 3SB
> >> United Kingdom
> >> www.bugbrand.co.uk
> >>
> >> _______________________________________________
> >> Synth-diy mailing list
> >> Synth-diy at dropmix.xs4all.nl
> >> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
> >
> > _______________________________________________
> > Synth-diy mailing list
> > Synth-diy at dropmix.xs4all.nl
> > http://dropmix.xs4all.nl/mailman/listinfo/synth-diy