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Subject:
Re: light detector
From:
Butch Bussen <[log in to unmask]>
Reply To:
For blind ham radio operators <[log in to unmask]>
Date:
Mon, 13 Apr 2015 14:06:48 -0700
Content-Type:
TEXT/PLAIN
Parts/Attachments:
TEXT/PLAIN (28 lines) 
Unfortunately I'm no good at soldering stuff like that.  Some one else 
mentioned a circuit using transisters.  I'd like to have that diagram, 
as I might be able to do that, although the only transister audio 
oscilators I recall used a center tapped audio transformer.
73
Butch
WA0VJR
Node 3148
Wallace, ks.


On Tue, 14 
Apr 2015, Dave Allen wrote:

> Hi Butch!
>
> Many thanks for the design and description.
>
> A couple years ago, I contacted the Blind Foundation's equipment shop and
> told them I wanted to buy a light probe. They had no idea what I was talking
> about. I sourced one overseas, as that's what local incompetence generally
> promotes, hi hi.
>
> 73,
> Dave
>
>

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