[sdiy] Fixed Filter Bank demos

[Oren Leavitt]

On 3/5/2012 4:38 AM, Dennis Verschoor wrote:
> Do you wind your own inductors with these toroid cores?
>
> Cheers,
>
> Dennis
>
> http://www.mono-poly.nl
>
>

Yes - I used 36 AWG magnet wire.

> On Mar 5, 2012, at 7:16, Oren Leavitt<obl64 at ix.netcom.com>  wrote:
>
>>
>>
>> On 3/4/2012 1:50 PM, Ingo Debus wrote:
>>> Hi all,
>>>
>>> I did some recording with my 907a clone Fixed Filter Bank.
>>>
>>> Here's white noise through the single filters:
>>> http://soundcloud.com/trio-sibiu/sets/fixed-filter-bank-fed-with/
>>> (for reference, the input signal is also included).
>>>
>>> Here are the impulse responses of the filters:
>>> http://soundcloud.com/trio-sibiu/sets/fixed-filter-bank-impulse/
>>> You can use these to emulate the filters with a convolution reverb program.
>>> Click on the images for the schematics of the filter stages.
>>>
>>> Ingo
>>
>> Looks and sounds great, Ingo!
>> Working on a 914 clone here. I hope to put up some pictures/demos when I finish it.
>>
>> Goldmine Electronics (USA) is running a sale on 86 count sheets of Magnetics ZJ-42212-TC toroid cores (AL value 6040):
>> http://www.goldmine-elec-products.com/prodinfo.asp?number=G18623
>>
>> This is the core I am using. Got Low pass, 125, 1000, 4000, 5600 and High pass done - bunch more to do :-)
>>
>> - Oren
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>