[sdiy] Article "Analyzing the Moog Filter"

Dave dlmanley at sonic.net
Fri Aug 23 22:41:10 CEST 2019


I thought i first saw the idea in a National app note, but yes, the Polivoks filter is the most well known (if not the only historic) implementation. 

-Dave

On August 23, 2019 12:16:42 PM PDT, David Moylan via Synth-diy <synth-diy at synth-diy.org> wrote:
>Is this the Polivoks style filter?
>
>https://modularsynthesis.com/kuzmin/polivoks/polivoks_vcf.htm
>
>On 8/23/19 3:09 PM, Donald Tillman wrote:
>> On Aug 23, 2019, at 9:56 AM, Dave <dlmanley at sonic.net> wrote:
>>> How about the programmable op amp filters based on the lm4250?
>> I don't know it.  'Gotta schematic?
>>
>>    -- Don
>> --
>> Donald Tillman, Palo Alto, California
>> http://www.till.com
>>
>>
>>
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>
>-- 
>David Moylan
>Expedition Electronics
>sonic adventures!
>
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