[sdiy] Quad VCA design

[cheater00 .]

I'd say that's definitely an improvement. Old OTAs were absolutely terrible :)

On Wed, May 15, 2013 at 5:37 PM, Terry Shultz <thx1138 at earthlink.net> wrote:
> Hi Dave,
>
> Thanks four your feedback and to all the other guys as well.
>
> On a different note, I spoke to Tom Oberheim last week, and he indicated that he was using the lm13600 based devices otherwise his new SEM was pretty close to his original design.
>
> Best regards,
>
> Terry
>
> Sent from my iPad
>
> On May 15, 2013, at 8:30 AM, "Dave Magnuson" <kingravine at comcast.net> wrote:
>
>> Hi Terry,
>>
>> You can get the v2164 at Small Bear for about $3-$4 each
>>
>> Dave
>>
>>> -----Original Message-----
>>> From: synth-diy-bounces at dropmix.xs4all.nl [mailto:synth-diy-
>>> bounces at dropmix.xs4all.nl] On Behalf Of Terry Shultz
>>> Sent: Wednesday, May 15, 2013 11:11 AM
>>> To: cheater00 .
>>> Cc: synth-diy at dropmix.xs4all.nl List
>>> Subject: Re: [sdiy] Quad VCA design
>>>
>>> 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-Con
>>>>> trolled_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
>>>>>>
>>>>>>
>>>>>>
>>>>>> _______________________________________________
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>>>>>> Synth-diy at dropmix.xs4all.nl
>>>>>> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Nate King
>>>>> Paper Products Music
>>>>> _______________________________________________
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>>
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