[sdiy] what is the lowest a pt2399 can go? flanger???

[Dan Snazelle]

thanks a bunch!

yeah i noticed my OHMS error later...

I might try ordering some of the pt2396 chips...looks as thought they go into shorter times





----------------------------------------
> From: flight at flightofharmony.com
> To: subjectivity at hotmail.com; synth-diy at dropmix.xs4all.nl
> Subject: RE: [sdiy] what is the lowest a pt2399 can go? flanger???
> Date: Wed, 16 Sep 2009 07:23:45 -0700
>
> I played around with the delay times while developing the Sound of Shadows
> delay module (almost done).
> The range of the PT2399 is around 30ms-600ms. According to PTC, sinking too
> much current from pin 6 (the clock rate pin) will destroy the chip, hence
> the 0.5 minimum resistance (judging by the preceding values on the table, it
> looks like they mean 0.5Ω). I haven't shorted the pin directly to ground,
> but I have tried a 2N3904 with no series limiting resistor and got around
> 30ms IIRC.
>
> Best regards,
>
> ~flight
> flight at flightofharmony.com
> http://www.flightofharmony.com
>
>
>> -----Original Message-----
>> From: synth-diy-bounces at dropmix.xs4all.nl [mailto:synth-diy-
>> bounces at dropmix.xs4all.nl] On Behalf Of Dan Snazelle
>> Sent: Tuesday, September 15, 2009 4:45 PM
>> To: sdiy
>> Subject: RE: [sdiy] what is the lowest a pt2399 can go? flanger???
>>
>>
>>
>>
>>
>>
>> i messed up that sentence and read the page wrong.
>>
>> sorry
>>
>> long day
>>
>>
>> the shortest pt2399 delay time comes at 0.5 resistance which i assume
> means
>> 50 ohms
>>
>> SO I suppose I am wondering what the shortest anyone has gotten with any
> of
>> the available methods (transistor, vactrol,etc)
>>
>> thanks
>>
>>
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>