Subject: | |
From: | |
Reply To: | |
Date: | Mon, 8 Aug 2016 12:47:24 -0400 |
Content-Type: | text/plain |
Parts/Attachments: |
|
|
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.
|
|
|