[sdiy] tau ladder filter

[Fernando de Izuzquiza]

The TAU VCO looks good too.

Fernando


El 08/12/2007, a las 6:18, phillip m gallo escribió:

> Charles Rodgers of CFR/Digisyn/Tau was an interesting designer- 
> synthesizer
> entrepreneur who few seem to know or remember.
>
> I always thought his designs were designed to exploit the  
> availability of
> those components he could acquire with the best possible spec and  
> lowest
> possible cost.  The CFR/TAU ladder VCF was probably designed to  
> exploit his
> current stock of PNP's.  As i recall it was one of his simplest  
> kits just
> board and parts.
>
> I visited his shop twice back in the day, both times after he took  
> over
> doing the support for ARIES synthesizers.  He would buy chips and
> transistors in bulk and select 'em for the CFR kit's he vended.  I  
> think the
> CFR Technotes make a fine companion to any collection of ElectroNotes.
>
> regards,
> p