[sdiy] RE: SDIY Withdrawal Symptoms

[Scott Gravenhorst]

Don Lancaster's "Active Filter Cookbook" has several single transistor circuit
schematics as part of the explanations of basic active filter topologies.  I've
never tried them, but I would bet they work.  The schematics name part values,
but don't call out transistor numbers.  I would imagine that transistor
selection is probably something to play with and shouldn't be very difficult.

The Peasant <ecircuit at telus.net> wrote:
>Well I, for one, appreciate the communication, it was getting too quiet around 
>here ;-)=  But yeah, we definitely should not be excluding anyone.
>
>BTW, anyone have any good discrete single-transistor active filter circuits 
>suitable for a basic LED spectrum analyzer/color organ? I'm trying to design 
>one with minimum parts/size for an extremely portable application, and I don't 
>do SMD.
>
>Take care,
>Doug
>______________________
>The Electronic Peasant
>
>www.electronicpeasant.com
>
>
>Quoting Tim Parkhurst <tparkhurst at siliconbandwidth.com>:
>
>> I really didn't mean to 'exclude' anyone. I just fired off an email to a
>> list of people who are DIY regulars, most of whom I've corresponded with in
>> the past. I'm sure I missed some important people, but if anything worth
>> repeating comes up, I'll gladly repost it when SDIY is active again. This is
>> just background chatter until 'the real thing' is back with us. 
>> 
>> 
>> Tim (DIY irregular) Server
>> 
>> "Imagination is more important than knowledge." - Albert Einstein
>>
>

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-- Scott Gravenhorst | LegoManiac / Lego Trains / RIS 1.5
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