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[OM] Re: The mercury cell problem and its solutions

Subject: [OM] Re: The mercury cell problem and its solutions
From: Mark Dapoz <md@xxxxxxxxxxxx>
Date: Tue, 30 Aug 2005 16:47:59 -0400 (EDT)
On Tue, 30 Aug 2005, Chuck Norcutt wrote:

> Does anyone know if the Wein cell is just a simple zinc-air cell like 
> the hearing aid batteries or does it have some form of voltage reduction 
> built in?  Nominal voltage for a zinc-air cell is 1.4 volts.  Wein 
> claims that their cell is 1.35 volts like a proper mercury cell.  Not a 
> big difference but still enough for a small metering error.
> 
> True or hype?

I heard they just used smaller holes to control the amount of air getting
in to give it a more "camera appropriate" functionality.  The basics of the
cell remains zinc-air.  I don't think they do anything special like voltage
regulation.
                                -mark


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