Alt-BEAM Archive
Message #13876
To: alt-beam@egroups.com
From: "Droidmakr " droidmakr@yahoo.com
Date: Wed, 04 Oct 2000 12:13:16 -0000
Subject: Re: Signal Generator Circuit?
Your best bet would be to take your question
to the main BEAM group at:
http://www.egroups.com/messages/beam
alt-beam is primarily an archive.
--- In alt-beam@egroups.com, bark735@y... wrote:
> Hi,
> I was looking thru a site called Rigter's NuPages
>
> http://www.geocities.com/SouthBeach/6897/rigter/wr_index.html
>
> and noted two Neuron circuits, the "Basic N/2 Neuron Circuit" and
> the "N/2 Neuron with Input Pulse Shaping" (figures 1 & 2 on the
> NuPages).
> I wonder if anyone can refer me to a circuit that will function
as
> a signal generator/input to these circuits? I've tried 555 based
> circuits, one-shots, and even the output from a Microcore circuit
> with no luck.
> My protoboarded versions of these Neurons have the values
> described in the schematic, are at +5v power and use Poly caps. To
> save you a trip to the site here's the first one as text, if I can
> get this one going I'll be happy.
>
> Fig 1 - Basic N/2 Neuron Circuit
>
> Vcc
> ^
> |
> |----|
> | |
> | /
> --->\ 1M
> / -----------------------------
> \ | |
> | | |
> | ---\\----- |
> | || \ |\ |
> | || /----/\/\/\----| \-------> out
> in ----} |------------//----- 330K | |/
> .001uF HC86 XOR | HC14
> |
> |
> -----
> ----- .001uF
> |
> |
> |
> ----- gnd
> ---
> -
>
> Sorry for such a simple question, but I guess I'm stuck. Any
> ideas would be appreciated.
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