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    Help needed - bilge pump alert

    You could use an SCR like this- and use an LED or bulb as the load. The "off" switch is the reset, the "on" is a 12 v signal from the switch. When the gate signal is removed (12v from the float switch), the SCR keeps conducting until it is reset. You can also put a reset switch in series with...
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    heater controller alternative

    I have replaced many electro-mechanical furnace and oven controllers using PID controllers (available cheaply on Ebay), switching a SSR (Solid state relay). Usually a lot smaller than the old controller, and you can set limits, alarms, etc on the new solid state ones. They can be configured to...
  3. I

    Workzone 18v charger.

    Do they still use Nickel Metal Hydride batteries in these drills?
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