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Re: [OM] How to build your own MR-9!

Subject: Re: [OM] How to build your own MR-9!
From: Robert Maichin <rmaichin@xxxxxxxxx>
Date: Mon, 10 Aug 1998 10:14:56 -0700 (PDT)
A simpler solution is to use Zinc-air hearing aid batteries with an
adapter ( I used an old px13 shell). Battery needs some venting for
air but gives 1.4 volts very consistently. 



---Terry and Tracey <foxcroft@xxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> 
> >| I made my own adapter to use silver oxide batteries.  Here's how:
> >|
> >| 1.  Go to Radio Shack and buy a two sided copper clad circuit board
> >| blank. These are used to etch PCBs.  Also buy a package of ten
> >| germanium diodes (you only need one, but RS only sells them by 10).
> 
> 
> The germanium diode drops too much voltage according to my electronics
> knowledge. ).3 volts generally. The mod suggested by John would be
the more
> accurate result.
> 
> Foxy
> 
> 
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