Audible alarm for blind person [RE-wrenches]

[Windy Dankoff, Dankoff Solar]

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>Solar Converters Inc. sells them.
>--- "Bob-O Schultze, Electron Connection" <econnect at snowcrest.net> wrote:
>  a simple switch (anyone making them these days?

Right -- Simple Switch was a trade name for a voltage-controlled 
relay made by Photron, now out of biz.

We have sold the Voltage Controlled Relay made by Solar Converters 
for numerous applications, and it's excellent. You can preset the 
on/off setpoints very precisely. Its output is double-throw switch 
contacts that can be used to do anything you want.

For this application, it's a little weak because it's only an 
all-or-nothing alarm. That's why I suggested something that indicates 
proportionally, at least to the voltage (if indication of the 
amp-hour state of charge is not feasible).

Windy

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