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[AMPS] Amplifier Experiments!

To: <amps@contesting.com>
Subject: [AMPS] Amplifier Experiments!
From: km1h@juno.com (km1h@juno.com)
Date: Wed, 27 May 1998 10:36:12 EDT
On Mon, 25 May 98 10:44:01 -0500 Jon Ogden <jono@webspun.com> writes:
>>If you connect the resistor to an MFJ-259 and some kind of jig to
>>minimize the inductance of the leads, and then "sweep" the frequency 
>up
>>into the VHF range, the "Resistance" scale should give some 
>indication
>>whether the resistor is significantly inductive. (Sorry, I don't have
>>suitable resistors to hand or else I'd have tried it.)
>>
>>I know that this isn't much of a measurement, but do you think it 
>would
>>be a worthwhile indication, Tom?
>
>Well, given I don't have an MFJ-259, that would be difficult.
>
>My thought was to place a cap in parallel with the resistor and then 
>measure the resonance with a dip meter.  From there, one can calculate 
>L.

Pretty hard to do since the leads will make up a good part of the
circuit. At much above HF that measurement method is highly suspect.

73  Carl  KM1H


>
>73,
>
>Jon
>KE9NA
>
>
>-------------------------------------
>Jon Ogden
>KE9NA
>
>http://www.qsl.net/ke9na
>
>
>"A life lived in fear is a life half lived."
>
>
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