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Re: Scoping of Secondaries
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To: tesla-at-grendel.objinc-dot-com
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Subject: Re: Scoping of Secondaries
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From: mrbarton-at-ix-dot-netcom-dot-com (Mark Barton)
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Date: Sun, 17 Dec 1995 22:17:59 -0800
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Steven and others,
You can lower the output impedance of a signal generator considerably
by winding an output transformer. I used a 1" pot-core and wound a
600ohm to 10ohm transformer that I use on the output of an HP200-CD sig
gen. The lowering of output voltage on this type of generator is not a
problem since they put out plenty.
Zap,
Mark
=======================================================================
>
>This raises some other questions. I'm assuming that a signal
>generator with an even lower impedence would give an even more
>accurate value for Q, but since I have what I have, is there any way
to
>compensate for this resistance? Also, rather than just believing the
>label that says 75 ohms by the output jack, what can I do to confirm
or
>compute the actual impedence of my signal generator? Would I be
>able to measure the open circuit voltage and the short circuit current
(at
>say, 60Hz) and use these values to calculate the internal resistance,
or
>is there something more complicated involved?
>