[sdiy] SteinerVCF page update

[Harry Bissell Jr]

Any semiconductor that has essentially fixed voltage
drop, with varying current can be used in this type of
filter.  I have done Ladder filters with ALL kinds of
diodes, including LEDs !!!

therefore you might make this filter with Germanium or
Shottky diodes, which have a much lower forward drop
(.2 - .4V) than silicon (.7V).  This might work.

Five volts, remains to be seen...

H^) harry

--- Fredrik Carlqvist <ifrc at iar.se> wrote:

> 
> I really like the sound of that filter! Nice site
> too.
> 
> Has anyone tried a 5 Volts version? I imagine if I
> reduce the number of
> diodes to 4, five volts would be enough if the
> transistors can be biased
> properly.
> 
> What do you think? Can it be done?
> 
> 
> Fredrik C
> 
> -----Original Message-----
> From: owner-synth-diy at dropmix.xs4all.nl
> [mailto:owner-synth-diy at dropmix.xs4all.nl] On Behalf
> Of Yves.Usson at imag.fr
> Sent: Wednesday, November 24, 2004 12:58
> To: synth-diy at dropmix.xs4all.nl
> Subject: [sdiy] SteinerVCF page update
> 
> 
> Hi all
> 
> I've put some new stuff on my web page dedicated to
> the Steiner VCF
> Check it at :
>
http://www-timc.imag.fr/Yves.Usson/personnel/SDIY/Modular/index.html
> 
> Cheers
> 
> Yves
> 
> 
> 
> -------------------------------------------------
> envoyé via Webmail/IMAG !
> 
> 
>