vm

[Neil Morrison]

FWIW, the 'Official' substitute is
from
8.4 volt mercury battery E136 8.4V 1000mA (original)
to
EN136A Manganese Dioxide 9.0V 650mA

Regards,

Neil

----- Original Message -----
From: "Gary Fortnum" <Daddio683 at AOL.COM>


> Floyd,
> Heath designed the IM-17 using an 8.4 V mercury battery for the meter
> amplifier and a 1.5 V for the Ohms cct.
> The 1.5 V is a standard C cell (NEDA #14) and the mercury 8.4 V is a NEDA
> #1611.
> You may have trouble finding the mercury battery as I don't believe they
are
> making any mercury batteries anymore. However, a std. 9 V alkaline will
work
> fine if you can make it fit. There is lots of headroom in the meter cct.
for
> a little more voltage.
> Maybe some of the other guys here have some other battery suggestions as
well.
>
> Regards,
>  Gary.

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