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Date Posted: 05:56:48 03/28/02 Thu
Author: Potter
Subject: Re: Length of NED & PED
In reply to: Kenobi 's message, "Re: Length of NED & PED" on 16:59:04 03/26/02 Tue

The length of the pulses is determined by the size of the signal voltage swing producing them & should be about 1-2uSecs for reliable detection. This can be adjusted by either the series RC signal supply to the detector or the reference voltage divider.
The 110V zener was chosen for its variable capacitance characteristic so others may work (eg tuner varicap diode) as it seems that all 1N5272's were not created equal anyway.

>Also, does the zener diode has to be of 110V?

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