[sdiy] CEM3340 Black Friday Sale

[aankrom]

Actually I think it was a schematic for one of the DOD flangers. Have 
to check which one...

AA

On Sun, 27 Nov 2011 12:17:32 -0500, dan snazelle wrote:
> On Nov 27, 2011, at 10:24 AM, aankrom wrote:
>
>> I've often wondered if, on circuits that use a diode as a voltage 
>> controlled resistor, if adding a 2nd diode in series would create 
>> something close to exponential response. I don't even know why this 
>> occurs to me. It's just that in the back (of the front) of my head, 
>> something is saying, "Hey, the math is close..." I think it's from 
>> seeing it done in other circuits. I've even seen three diodes in 
>> series - not counting diode ladder filters...
>>
>> AA
>
>
>
>
>
> which circuit are you referring to that uses a diode as a vcr? The
> thomas henry flanger? or something else?
>
> i am interested in this experiment!
>
>
>
> thnks
>
>
>>
>> On Sat, 26 Nov 2011 11:57:56 -0500, KA4HJH wrote:
>>>> I added that waveform to my PIC tap tempo LFO for exactly that 
>>>> purpose.
>>>> It's a lot cheaper to do it with a £2 PIC than a CEM3340.
>>>>
>>>> http://www.electricdruid.net/index.php?page=projects.taplfo
>>>>
>>>> As to whether it genuinely makes a better flanger, I still don't 
>>>> know.
>>>> I've never tried it. It makes a good trem though!
>>>
>>> It makes sense that a comb filter would sound better with 
>>> exponential
>>> response but I've never heard it done. All it would take is a cheap 
>>> expo
>>> convertor before the clock, no need for something fancy.
>>
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