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Date: Sun, 05 Jan 2003 18:14:30 +0100
From: Rene Tschaggelar
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Subject: Re: Strange going-on with a floating MOSFET gate
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Winfield Hill wrote:
> Reporting on some strange business with a floating MOSFET gate...
> John LArkin wrote...
>>I did a post a while back: a 2N7000 with a 9-volt battery and an LED
>>in its drain, gate hanging open. This can be set on or off and stay in
>>that state for many days. You can also perch the gate voltage just at
>>the turnon point and get the LED to stay on dimly, with no perceptable
>>brightness change over many hours.
Did you move your mobile phone closer ? Anyway.
To start with, I'd put the whole into a little faraday shield.
Perhaps made from double sided pcb, matchbox sized. Have the source
on case and the drain AC-grounded with a ceramic cap. The meters
The lid can be just laid on top.
Ing.Buero R.Tschaggelar - http://www.ibrtses.com
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