[R-390] DMM bounce

[Dan Merz]

Hi Bill,  now why didn't I think of that !!!  Z transformation or
short-circuit reactance??  In either case,  the input impedance is going
to be lower.    I tried it with the transformer in question and the
pocket autoranging meter - it took 6 bounces before settling on the
correct reading of 1500 ohms on the secondary.  You have won my respect
for thinking of trying that.    Since it took 6 bounces,  I suppose
there is probably a meter out that wouldn't work with that solution if
it has a faster autoranging rate,  but then that would depend on how the
particular meter sends current through the transformer to make a reading
each time it does its autoranging routine.  I like your idea,  thanks
for a great idea to try and it worked with the autoranging meter I
have,  one of those small toothbrush case RS models of about 7 years
back.     Dan

Bill Hawkins wrote:

> If all you wanted was the DC resistance of the secondary, and
> all you had was an autoranging DMM, could you short the primary
> to calm down the autoranger?
>
> Bill Hawkins
>
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