[sdiy] diode filters

[rob at emulatorarchive.com]

Hi,
Not sure what went wrong with your clone, but my Minisonic 2 diode 
filter clone worked first time.
Details are here, and the PCB can be purchased (15V version).
http://www.amsynths.co.uk/Filter_Bank2/AM8050/am8050.html
I also built the original in 1975 and that worked first time to.
Did you get the filter to cutoff?

Also other some other Roland like diode filters are here:
http://www.amsynths.co.uk/Filter_Bank/AM8003/am8003.html
http://www.amsynths.co.uk/Roland_100M/AM8005/am8005.html
And the Snowfall:
http://www.amsynths.co.uk/Filter_Bank2/AM8071/am8071.html

On a diode filter you do need to get the gain structure right to enable 
self oscillation, it takes more than on a transistor filter.
I will have some Eurorack diode filters for sale soon as completed modules.

Regards
Rob
www.amsynths.co.uk

On 10/11/2010 17:48, dan snazelle wrote:
> I tried building up the minisonic 2 diode filter today....no go
>
>
> not sure why it didnt work but as i have never built a diode filter before, it is hard to say.
>
> anyone have any recommendations for other diode filters that are pretty easy to breadboard?
>
>
> thanks!
>
>
>
>
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