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August 2016

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Subject:
From:
Joyce Koo <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, [log in to unmask]
Date:
Mon, 8 Aug 2016 13:21:07 -0400
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good thinking... bi-layer resistor material might be tailored...
> The resistances you are looking for are at the lower end of the embedded
> resistance range for placing inside circuit boards. These resistor
> materials are supplied as sputtered laminates, electrolessly plated on, or
> screened on as polymer thick films.  Not quite what you are seeking - but
> certainly the right resistance range.
>
> Denny Fritz
>
>
> -----Original Message-----
> From: Carl Van Wormer <[log in to unmask]>
> To: TechNet <[log in to unmask]>
> Sent: Mon, Aug 8, 2016 10:16 am
> Subject: Re: [TN] looking for medium resistance material
>
> I'm hoping to find a distributor who can supply plastic, metallic, or
> composite material that I can buy or get a sample of a couple of different
> resistivities for some experiments.  The old ESIAC analog computer used
> Teledeltos paper, and an old music synthesizer used a conductive plastic
> sheet cut in an exponential shape for a tapped voltage divider for the
> VCO.  I'm just hoping that somebody still makes a sample kit for something
> like this . . .
>
> For my present experiments, I want to get an impedance that is low enough
> to give me capacitive isolation, while not stealing too much of the
> desired inductive coupling.  A grounded copper plate gives me total
> capacitive isolation, but also blocks all of the inductive coupling,
> acting as a shorted turn.  A ferrite plate would also short out the
> magnetic field that I need.  I want a Goldilocks plate.
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Joyce Koo
> Sent: Monday, August 08, 2016 6:23 AM
> To: [log in to unmask]
> Subject: [TN] looking for medium resistance material
>
> http://www.integran.com/services/nanovate-em-magnetic-shield-coating/
>
> also, you might want to take a look at textile mixed with metal if you are
> doing it at system level.
>

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